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UNITED STATES DEPARTMENT OF COMMERCE • John T. Connor, Secretary

U 5 . NATIONAL BUREAU OF STANDARDS • A. V. Astin, Director

Atomic Transition Probabilities

Volume I Hydrogen Through Neon

A Critical Data Compilation

W. L. Wiese, M. W. Smith, and B. M. Glennon

Institute for Basic Standards

National Bureau of Standards

Washington, D.C.

NSRDS-NBS 4-

National Standard Reference Data Series

National Bureau of Standards 4

(Category 3 — Atomic and Molecular Properties)

Issued May 20, 1966

For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C., 20402 - Price $2.50
National Bureau of Standard

AUG 3 1366

153, HO

QC/OO

'US 73

no. 4

/ / u* -2

Library of Congress Catalog Card Number: 65-60078
National Standard Reference Data System

The National Standard Reference Data System is a government-wide effort to give to the

technical community of the United States optimum access to the quantitative data of physical

science, critically evaluated and compiled for convenience. This program was established

in 1963 by the President’s Office of Science and Technology, acting upon the recommendation

of the Federal Council for Science and Technology. The National Bureau of Standards

has been assigned responsibility for administering the effort. The general objective of the

System is to coordinate and integrate existing data evaluation and compilation activities into a systematic, comprehensive program, supplementing and expanding technical coverage

when necessary, establishing and maintaining standards for the output of the participating

groups, and providing mechanisms for the dissemination of the output as required.

The NSRDS is conducted as a decentralized operation of nation-wide scope with central

coordination by NBS. It comprises a complex of data centers and other activities, carried on in government agencies, academic institutions, and nongovernmental laboratories. The

independent operational status of existing crictical data projects is maintained and encouraged. Data centers that are components of the NSRDS produce compilations of critically

evaluated data, critical reviews of the state of quantitative knowledge in specialized areas, and computations of useful functions derived from standard reference data.

For operational purposes, NSRDS compilation activities are organized into seven cate- gories as listed below. The data publications of the NSRDS, which may consist of monographs, looseleaf sheets, computer tapes, or any other useful product, will be classified as belonging to one or another of these categories. An additional “General” category of NSRDS

publications will include reports on detailed classification schemes, lists of compilations

considered to be Standard Reference Data, status reports, and similar material. Thus,

NSRDS publications will appear in the following eight categories:

Category

1234

56

78

Title General

Nuclear Properties

Atomic and Molecular Properties

Solid State Properties

Thermodynamic and Transport Properties

Chemical Kinetics

Colloid and Surface Properties

Mechanical Properties of Materials

Within the National Bureau of Standards publication program a new series has been

established, called the National Standard Reference Data Series. The present report, which

is in Category 3 of the above list, is Volume I of Number 4 of the new series and is designated

NSRDS-NBS 4 Vol. i.

A. V. Astin, Director.
'

.

'

:&*

- ft:

:

; *
Contents

General Introduction

Page A. INTRODUCTORY REMARKS I B. SCOPE OF THE TABLES I C. REVIEW OF THE PRINCIPAL DATA SOURCES II D. METHOD OF EVALUATION V

E. ARRANGEMENT AND EXPLANATION OF COLUMNS VI

F. FUTURE PLANS AND ACKNOWLEDGEMENTS VIII

REFERENCES VIII

APPENDIX A XI

APPENDIX B XI

List of Tables

Spectrum Page Spectrum Page Hydrogen H i* 1 Oxygen 0 I 77

Helium He i 9 0 II 83

Lithium Li I 16 0 ill 95

Li II 19 0 iv 103

Beryllium Be I 22 0 v 107

Be II 23 0 vi 110

Be III 24 0 vn 112

Boron B I 25 Fluorine F i 113

B ii 27 F ii 115

B hi 28 F hi 117

B iv 29 F iv 119

Carbon C I 30 F v 120

C ii 37 F vi 122

C hi 41 F vii 123

C IV 45 F viii 125

C v 47 Neon Ne i 126

Nitrogen N i 48 Ne ii 130

N ii 56 Ne ill 138

N hi 65 Ne IV 142

N iv 71 Ne V 145

N v 74 Ne vi 148

N vi 76 Ne Vii 150

Ne Viii 151

Ne IX 152

LIST OF RECENT ADDITIONAL MATERIAL 153

I = spectrum of neutral atom, II = spectrum of singly ionized atom, etc.
. .

.
ATOMIC TRANSITION PROBABILITIES*

(A critical data compilation)

Volume I

Elements Hydrogen through Neon

W. L. Wiese, M. W. Smith, and B. M. Glennon

Atomic transition probabilities for about 4,000 spectral lines of the first ten elements, based on all available literature sources, are critically compiled. The data are presented ip separate tables for each element and stage of ionization. For each ion the transitions are arranged according to multiplets, supermultiplets, transition arrays, and increasing quantum

numbers. Allowed and forbidden transitions are listed seoarately. For each line the transition probability for spontaneous

emission, the absorption oscillator strength, and the line strength are given along with the spectroscopic designation, the wavelength, the statistical weights, and the energy levels of the upper and lower states. In addition, the estimated accu- racy and the source are indicated. In short introductions, which precede the tables for each ion, the main justifications

for the choice of the adopted data and for the accuracy rating are discussed. A general introduction contains a critical review of the major data sources.

A. INTRODUCTORY REMARKS

After a long period of limited activity in atomic spectroscopy, the last half dozen years have brought rapid growth

to this field. This has been sparked largely by urgent needs

from areas in which basic atomic data are employed, namely

plasma physics, astrophysics, and space research. As

part of these developments, the pace and scope of determining atomic transition probabilities has greatly increased,

so that the amount of accumulated material appears now

to be sufficiently large to make a critical data compilation

worthwhile and desirable. To realize this idea, a data centei on atomic transition probabilities was established at the National Bureau of Standards in 1960. As a first step of the pro- gram, a search for the widely scattered literature references was undertaken. This phase of the work was essentially

completed in 1962 with the publication of a “Bibliography on Atomic Transition Probabilities” (NBS Monograph

50) [1], After that, only the monitoring of the current litera- ture had to be kept up, and the emphasis of the work therefore could be shifted to the critical evaluation of the litera- ture and the tabulation of the numerical data. Since the

lightest ten elements have been of dominant interest, and

on the other hand, the largest amount of data are available

for them, it was decided to concentrate on these and publish

their “best” values as the first part of a general compilation,

pilation.

When the present tabulation was started, it was hoped

that sufficient reliable material was available for a fairly

comprehensive fist, which would contain data for at least

all the strong prominent transitions. This hope materialized only partially. A number of gaps and large discrepancies were found, and the theoretical and experimental

efforts of several members of the Plasma Spectroscopy

Section at NBS were needed to remedy the most critical

*This research is a part of project DEFENDER, sponsored by the Advanced Research Projects Agency, Department of Defense, through the Office of Naval Research.

situations. Furthermore, the Coulomb approximation of

Bates and Damgaard [2] was extensively applied to obtain

additional data. Although this unforeseen extra work

delayed the publication of this compilation somewhat, we

feel that we are now able to present a more useful and substantial collection of data.

B. SCOPE OF THE TABLES

In the present compilation the “best” available transition

probabilities 1 of allowed (i.e., electric dipole) and for- bidden (i.e., electric quadrupole and magnetic dipole) lines

of the first ten elements, including their ions, are tabulated.

The hydrogen-like ions are excluded; their transition probabilities may be obtained by scaling the hydrogen values

according to the formulas given in table I. Furthermore,

/-values or absorption coefficients for continua, i.e., boundfree transitions are not listed. As source material all the

literature given in Ref. [1] plus later articles obtained from

continuous scanning of the current literature are available.

It is our opinion that a tabulation of the present kind must

contain fairly reliable values for at least all the stronger,

characteristic lines of the various ions in order to be of

general usefulness. We have tried to adhere to this goal

from the start. More specifically, we have felt that for

most atoms and ions at least the “prominent” half of the

multiplets listed in the “Revised Multiplet Table” [3], and

the “Ultraviolet Multiplet Table” [4] should be included in

the tabulation, and uncertainties should be smaller than

50 percent. A number of gaps in the data and inferior

values were noticed at the start, and — as already mentioned— it has been largely due to the efforts of some

1 Hereafter, we shall use the equivalent terms “transition probability, oscillator strength or/ value, and line strength" on an interchangeable basis. The numerical relationships between these quan

tities are given in table 111.

1
members of the Plasma Spectroscopy Section at NBS and

the availability of the Coulomb approximation [2] that the

most glaring defects could be eliminated. Although we

still must compromise in some cases by including inferior

material (marked in the accuracy column as “£”’) we feel

that waiting for these improvements would unduly delay

the publication of the table.

Aside from this objective of including at least all the

stronger lines, we have listed all additional available material with uncertainties smaher than 50 percent. We have

deviated from this scheme only in a few instances: In these cases we have excluded data for very highly excited transitions, because these transitions have never been observed

(no experimental wavelengths are available) and are of

little practical interest. However, we have listed this

additional material by spectrum in table II. Most final tabulations were undertaken during 1964.

Thus the literature through 1963 and in some cases even

later work could be included. However, a few 1963 articles,

which have been found in abstracting journals, came to our attention too late. These are listed, together with other

recent material, in the fist of additions at the end of the

tables.

C. REVIEW OF THE DATA SOURCES

The present status of our knowledge of atomic transition

probabilities must be considered as being far from ideal.

The available material leaves much to be desired in quality as well as quantity [5]. This becomes especially evident

if comparison is made with the other most important quantity of a spectral fine, its wavelength. The only transition

probabilities known with an accuracy comparable to that

for wavelengths are available for hydrogen and hydrogenlike ions and a few lines of helium. For all other elements

more or less reliable values have been obtained from various

experimental and theoretical approaches. While experimental work has provided, with very high accuracy, practically all the data for the wavelengths of lines, it could not

accomplish nearly the same in the case of transition probabilities. The measurement techniques are quite complicated and laborious, and it has proved to be very difficult to obtain accuracies of 10 percent or better. On the other

hand, advanced theoretical approximations have been quite

successful for the light, relatively simple atomic systems,

and large amounts of data have been obtained from their

applications. But the theoretical methods have the shortcoming that they do not permit estimates of the size of the

errors as do the experiments.

In view of this reliability problem it is very important to discuss in detail how the accuracy ratings for the tabulated

values have been obtained. For this purpose, a brief discussion is given in the individual introductions for each ion.

Furthermore, to provide a better background and understanding for these short explanations, we include the fol- lowing discussion of those major experimental and

theoretical methods from which the bulk of the material

for the lightest ten elements has been obtained.

1. Experimental Sources

a. Measurements in Emission

Experimentally, the largest number of /-values has been

obtained from measurements of the intensities of spectral

lines which are emitted from plasmas under known conditions. With this method the first and second spectra

of carbon, nitrogen, and oxygen, the third spectrum of oxygen,- and the first spectrum of neon have been studied.

The plasma sources are various types of stabilized arcs, and, to a lesser extent, shock-tubes. In brief, the methodjf)]

is as follows: The transition probability for spontaneous

emission from upper state k to lower state i, Am, is related

to the total intensity Im of a fine of frequency Vik by

Iki = ^AkihVikNk (1)

where h is Planck’s constant and Nk the population of state

k. Aki may therefore be obtained from the measurement

of Iki and the determination of NkThe experimental conditions are chosen so that the plasma

is approximately in a state of local thermodynamic equilibrium (LTE), because Nk is then a function of temperature

and total density of the species only, and may be determined

from the application of equilibrium and conservation equations and measurements of the temperature and electron

density. The measurements have always been done spectroscopically from the determinations of the intensities

of lines and continua of known transition probabilities and

absorption coefficients, or by measuring line profiles and

utilizing the results of line broadening theory in plasmas.

Checks for the existence of LTE have been made re- peatedly. It appears to be always closely approximated,

except in the high-temperature magnetically driven shocktubes where only partial LTE exists [7]. Also, the investigated lines have generally been checked for self-absorption.

A demixing effect in arcs [8, 9] has introduced uncertainties into the results of some earlier arc experiments with

gas mixtures, in which the mixture ratio was employed

for the analysis. Since primarily the densities are affected,

larger uncertainties in the absolute /-value scale are likely,

but the relative /-values should be still quite accurate.

However, this effect has been circumvented in most of the

recent arc experiments used for this data compilation.

Significant errors in emission experiments may arise from

difficulties in determining the continuous background, from

neglecting intensity contributions of the distant line wings

[10], from uncertainties in the calibration of standard light

sources, and from uncertainties in the high-density corrections in plasmas [11]. Applications of wall-stabilized arcs

[12, 13] have given the most accurate results of all emission

measurements.

The best absolute /-values obtained from emission experiments are estimated to be accurate within 15 percent, but

for the bulk of the tabulated data errors between 20 to 50

percent must be expected. It should finally be noted that

absorption measurements (only one is encountered in the case of Ne I) are quite analogous to the above mentioned

emission experiments.

b. Lifetime Determinations

The direct measurement of lifetimes of excited atomic

states has important applications for helium and neon. The method [6, 14] employed here consists essentially of

exciting atoms by radiation or electron impact in short

bursts and of observing the subsequent depopulation of

excited levels by studying the time decay of the emitted

radiation (delayed coincidence technique). The population

Nk of an excited state k decays according to

Nk = N0 , k exp ( — ykt) (2)

where N0 , k is the population at time t = 0 and y

the decay

u
constant. Thus, an exponential decay in the radiation is observed. The mean lifetime Tk =yk

1 of the atomic state is related to the transition probability Aki for spontaneous

emission by

Tk l = 2 4ki + Q

I (3)

neglecting absorption and induced emission. Q denotes

a term for collisional population and depopulation rates. In order to obtain ^ Aki, one has to choose experimental

i conditions such that the collisional term Q (as well as the

less critical absorption and induced emission) becomes

negligible. This condition is achieved at very low densities.

It is seen that from lifetime measurements generally

the sum of all probabilities for transitions to lower levels i

is obtained, and individual transition probabilities may be

obtained explicitly only in the following two cases: (a) The sum reduces to a single term, i.e., only transitions to the ground state are possible. This is, for example, the case for resonance lines, (b) The sum is dominated by one

strong term (this is likely if it contains a transition of comparatively high frequency Vik(Aki is proportional to v%k), or if all transitions but one are “forbidden”, i.e., have very

small transition probabilities). Furthermore, one may use

lifetime experiments to normalize available relative transition probabilities to an absolute scale, if all relative probabilities contributing to the sum are known.

The lifetime method is, therefore, limited to only a few

lines per spectrum, namely those originating from the lowest

excited levels. But the results should be very accurate,

with uncertainties less than 10 percent, since the method

is simple and the instrumentation is by now well developed

[14]. The major uncertainties arise from radiative cascading from higher levels, which repopulates the initial level,

and from depopulation by collisions.

c. Measurement of /-values from the Anomalous Dispersion

at the Edges of Spectral Lines

This method has found applications for lines of neutral

lithium and neon. It is based on the following relation: In the neighborhood of a spectral line the index of refraction n varies according to

e

2Njfik A;] / Nkgj \ 4>Trmec

2 A — A0 \ Nigh /

(4)

Here g denotes the statistical weight; A the wavelength;

Ni the population of the lower state i; and e, me , c are the

usual natural constants. The experimental conditions are chosen such that the excited states are populated according

to the Boltzmann formula, so that generally Nk < < Ni,

and the term NkgilNigk may be neglected. For the determination of N\f,k the index of refraction n at the wavelength

distance A — A0 from the center of the line, A0 , has to be

measured. This can be done most precisely with the

“hook” method developed by Rozhdestvenskii [15] and

recently reviewed by Penkin [16]. In this method the gas

to be studied fills a tube, which is part (one arm) of a Jamin

or Mach-Zehnder interferometer. The tube must be at an

elevated temperature to achieve sufficient population of the

excited levels. Light from the continuum source penetrates the tube as well as an evacuated comparison tube of

the same length, and the resulting interference fringes are

sent into a spectrograph. On either side of an absorption

line the interference fringes are characteristically bent

due to the rapid change in the index of refraction. By introducing a thick glass plate into the compensating arm of the

interferometer, a tilting of the fringes and the formation of

the hooks is accomplished. The measurement of the wavelength distance between the extrema then permits a precise

determination of the index of refraction. In the three ex- periments encountered for this compilation, the absolute

number densities for the lower states N, could not be determined, so that only relative /-values for lines originating

from the same lower levels were measured. Uncertainties

in the relative values should not exceed 10 to 20 percent.

In the original papers, absolute /-values were then obtained

from applications of the Thomas-Kuhn-Reiche /-sum rule,

but for this compilation we have normalized the relative

values to different scales, which are based on other, more

accurate material.

2. Theoretical Sources

a. The Coulomb Approximation

Under the assumption of Russell-Saunders (or LS-)

coupling, which is generally very well fulfilled for the first ten elements, the line strength S may be expressed as the

product of three factors [2] S = @(9W)@(2)o-2

. (5)

(The relations of S with/f and/ are given in table III.) The

first two factors in eq (5) represent the strength of the multiplet (<S(9)t)) and the fractional strength of the spectral

line within the multiplet (©(? )). The numerical values for

these may be obtained from tables by Goldberg [17], and

White and Eliason [18], which have also been reproduced

by Allen [19].

The difficult problem is the evaluation of the transition

integral cr. Bates and Damgaard [2] showed that for most

transitions the main contribution to the integral comes from

a region in which the deviation of the potential of an atom

or ion from its asymptotic Coulomb form is so small that it may be replaced by the latter. Since for the Coulomb

potential the transition integral may be expressed analytically, it is possible to calculate cr

2 as a function of the observed term value and the azimuthal quantum number.

Bates and Damgaard have thus compiled tables with nu- merical values of cr

2 for s —p, p~d, and d—f transitions. 2 The Coulomb approximation is restricted to transitions

between levels having the same parent term. It gives the

best results if the degree of cancellation in the transition

integral is small, i.e., if cr

2 is not too close to zero, and if the upper and lower levels of the excited electron are in a

shell which contains no other electrons. This is true for

the moderately and highly excited levels. But even if the

lower level is in a shell which contains other electrons, the

results often agree fairly well with those obtained by other

methods.

On the whole, the Coulomb approximation has given

impressive results and has proved to be of great value. In

most cases where comparisons are available — there are several hundred of them for the first ten elements — the

results agree within 20-40 percent with those from advanced

theoretical and experimental methods. We have therefore

made extensive use of this approximation 3 to supplement

2 Tlu- customary spectroscopic notations arc used throughout.

J We have been fortunate in obtaining a computer program for the calculation of Hate* Damgaard

values from H. K. Criem to whom we would like to express our special thanks.
the available material. However, we have restricted our- selves to the medium-strong or stronger lines (as judged

from the intensity data supplied in the multiplet tables) for

which experimental wavelength and energy level data are

available and for which the lower state is significantly above

the ground state. If the need for /-values of other higher

excited fines should arise, we strongly recommend the application of the Coulomb approximation.

On the basis of many comparisons, the uncertainties of

the Bates-Damgaard values have been estimated as follows:

For transitions between excited states in the spectra of

neutral helium, lithium, beryllium, boron, and their isoelectronic sequences they do not exceed 25 percent and in

favorable situations may be as low as 10 percent. For the

more complex atoms among the first ten elements, namely

carbon, nitrogen, oxygen, fluorine, and their equivalent ions,

we have estimated the uncertainties to be within 50 percent

for the moderately excited transitions including 3s — 3p and

within 25 percent for the medium and highly excited fines,

i.e., transitions of the types 3p — 3d, 3d — 4/, etc. A few

of the tabulated values may be much more uncertain than

the stated error limit because of cancellation in the transition integral which we did not check in each case.

It is worth noting that in many instances the results of

the Coulomb approximation appear to be as good as those

from other, more elaborate theoretical treatments, such as the self-consistent field approximation with exchange.

This is primarily indicated from comparisons with the most

advanced theoretical and experimental methods.

b. Calculations Based on the Self-Consistent Field (SCF)

Approximation

This method has found, in varying degrees of refinement,

widespread use for the calculation of /-values. It provides

a set of wave functions for the atomic electrons which

produce an approximately self-consistent electric field. The transition probabilities are then determined by integration over the radial parts of these wave functions. A

short outline of the procedure, developed by Hartree, and

extensively described by him [20], is given below:

It is assumed that the charge density distribution of the

atomic system is spherically symmetric, i.e., the potentials

of the electrons depend only on their radial positions.

Correlations between the electrons are at first neglected;

all are supposed to move independently in the central field,

experiencing only the averaged charge distribution of the

other electrons and the nucleus. With these simplifications the motions of the individual electrons can be calculated by assuming trial wave functions for the others, and

from the resulting wave functions the charge density distribution is computed and compared with the initial one

obtained with the trial functions. If self-consistency is not

achieved, the new, computed wave functions are used as

trial functions, and the procedure is repeated until initial and final charge distributions are identical, i.e., the field

is self-consistent.

This basic procedure was improved by Fock [21], who

included exchange effects between the electrons, hy Trefftz

et al. [22], and Biermann and Liibeck [23] who in the special cases of He I and C II took into account other correlations

between the electrons. More recently, large-scale computations were made possible after the introduction of elaborate

computer programs by Roothaan and co-workers [24].

An assessment of the errors resulting from the various

approximations in the calculations has not been feasible.

But a number of comparisons with experimental results and

with more accurate variational calculations, as well as consistency checks made by applying the dipole length and

dipole velocity representations of the matrix element have

shown that for simple atomic systems accurate transition

probabilities with uncertainties smaller than 10 percent may

be obtained when a refined procedure including exchange

effects is applied. This is particularly true for He I and

Li I and their isoelectronic sequences, for which the extensive calculations by Weiss [25], and Trefftz et al. [22] are

available. The large-scale computations by Kelly [26] for

fines of nitrogen and oxygen contain the exchange effects

only in an approximate way (the exchange term is replaced

by an averaged potential) and errors of about 20 percent

must be expected for most of the moderately excited transitions as judged from many comparisons. In a few cases, the positive and negative contributions to the transition

integral are almost equal to each other (the ratios are fisted

by Kelly); i.e., cancellations are encountered and a much

lower accuracy must be expected. In these cases we have

given preference to available experimental results.

For the breakdown of the transition integrals into multiplet

and fine values we have used the LS-coupfing strengths

[19] unless special results have been available, as for ex- ample for Oil. We have generally avoided using SCF

calculations if they were done without considering exchange

effects, but have had to make an exception for some important fines of B I because no other comparable material is available.

Large uncertainties in the SCF calculations as well as other theoretical treatments are expected for transitions

where configuration interaction becomes important. For

the first ten elements these transitions are of the type

ls22sm2pn—» ls22sm^ 1 2pn+1. Only a few attempts have yet

been made to take configuration interaction into account.

Very recently, Weiss [27] has undertaken limited calculations for some C I and Be I fines and Yutsis, Bolotin and

co-workers have for some time employed a “many configuration approximation,” [28] as they call it. The Russian

group has greatly simplified its approach by including only one interacting term for the lower state, which is always

the ground state (“double configuration approximation”)

and none for the upper state. In addition to this simplification, relatively crude wave functions have been employed, namely analytical one-electron wave functions or SCF functions without exchange. Unfortunately, practically all these transitions are in the far ultraviolet; only

two experimental investigations by Boldt [29] and Labuhn

[30], both done with a wall-stabilized arc, are available for a detailed comparison. From the experimental results one must judge that the success of the many-configuration

method in its present form is only fair. Errors of factors

of two or more must be expected. This seems to be also

the case for Weiss’ somewhat more elaborate treatment of

configuration interaction (up to three interacting terms for

the lower state). Thus, the transition probabilities for the

ls22sm2p”

> ls22sm~ 1 2pn+1 transitions are among the least

well known for the lightest ten elements, and further improvements for these fines are urgently needed.

c. Quantum Mechanical Calculations of Forbidden Transitions

We have considered as forbidden fines all magnetic dipole

and electric quadrupole fines. The extensive calculations

by Garstang [31, 32, 33] and Naqvi [34], and — to a lesser

extent — the papers by Seaton and Osterbrock [35], Yamanouchi and Horie [36], and Ufford and Gilmour [37], have

been principal sources. All these calculations have as a common starting point the general expressions for the line

IV
strengths of forbidden lines in the p

2

, p

3

, and p

4 configurations, which were given algebraically and tabulated by Shortley et al. [38], and later extended by Naqvi to the few

transitions of the sp, p, and p

5 configurations.

The principal differences between the various calculations

are the approaches chosen to determine the most important

parameters:

(a) The “spin-orbit,” and “spin-spin and spin-other-orbit”

integrals, usually designated by £ and 17, have been determined either empirically or by using available wave functions. Garstang has compared the empirical and theoretical

values for some ions — the latter obtained from SCF functions

with exchange — and has found differences of up to 20 percent for £ and up to 30 percent for p. When a choice is available, we have given preference to the empirical values.

(b) The term intervals. Here one has the choice between using exclusively experimental energy values or combining some of these with the results of the Slater

theory [39] for inter-multiplet separations, that is, by employing the Slater parameters F2 . Differences between the

two approaches arise mainly due to the effects of configuration interaction. These are neglected in all calculations

and may cause deviations up to a factor of two. A study

by Garstang [40] in 1956 led to the result that the exclusive use of observational material partially includes, at least

in simple cases, the effects of configuration interaction,

when the latter is otherwise not taken into account. Thus

the work based on experimental term intervals has been

adopted whenever available.

Naqvi used in his calculations essentially the second of

the above-mentioned approaches. He compared empirically determined Slater parameters F2 for the various term

intervals with theoretically derived values, and selected

the one experimental parameter which was in best agreement with theory. Then he employed this particular F2 and the Slater theory for the determination of all other term

intervals. In view of the above mentioned study by Garstang we have used from Naqvi’s work only the transition

probabilities based entirely on this initial parameter, i.e., based exclusively on observational material. Consequently,

his data for the p

3 configuration have not been applied,

with the exception of the ion F III, since in this case his

work was the only available source. On the other hand,

Naqvi’s calculations for the simpler sp-configuration are

all based on the empirical value for the one term interval

there and should, therefore, take the effects of configuration

interaction partially into account.

(c) Transformation coefficients. The atoms and ions

under consideration are most closely represented by the

intermediate coupling scheme, but for the calculations of

transition probabilities the actual wave functions are more

conveniently expressed in terms of LS-coupling wave functions. The transformation coefficients were first derived

by Shortley et al. [38] and were later refined by several

others, in particular by Naqvi [34]. Thus, Naqvi’s results

have been adopted whenever the choice of the transformation coefficients became important and when he accounted

for the effects of configuration interaction in the abovementioned manner. It is especially worth noting that by

including the effects of spin-spin and spin-other-orbit interactions on the transformation coefficients of the p

4 configuration some results are improved by about 10 percent.

(d) The integral sQ for electric quadrupole transitions.

This depends principally on the quality of the employed

wave functions. We have preferred calculations with SCF

wave functions over those with hydrogenic functions or

screening constants and, among SCF calculations, we have

preferred those with exchange effects included over those

without exchange. The improvement with SCF wave functions is estimated to be of the order of 20 percent. In general, the electric quadrupole transitions are not as accurate

as the magnetic dipole values for transitions of the same general type because of the additional uncertainty in the determination of sq

. This uncertainty should generally be in

the neighborhood of 20 percent.

A good assessment of the uncertainties in the calculated

values for forbidden fines is possible due to the fortunate

circumstance that some forbidden fines of O I have been

determined experimentally. These fines appear strongly

in the aurora, which has been utilized as a “fight source”.

The transition probabilities could be accurately determined

via a measurement of the lifetimes of the upper atomic

states. Extensive auroral observations by Omholt [41]

gave for the 1 D — X S transition a transition probability of

1.43 sec

-1

, while the best calculated value is 1.25 sec

-1

. For another case, namely the lifetime of the J D state, the

averaged experimental result is approximately 160 sec, while

the theory gives 135 sec. The theoretical transition probabilities involved in this

comparison depend sensitively on the choice of some parameters, particularly sq and £. The good agreement with the

observations indicates that uncertainties no greater than 25

to 50 percent have to be generally expected.

For a number of magnetic dipole transitions, the uncertainties should be even smaller, since the results are almost

independent of the choice of the parameters. In the p

2 and

p

4 configurations these are the transitions 3P2 — 3 Pi and

3Pi—3 P0, which have, near LS-coupling, the strengths of 2

and 2.5 respectively. In the p

3 configuration one encounters

the transitions 2 P3/2 — 2 P°/2 with a strength of 1.33 and the

transition 2 D5/2 — 2 Dg/2 with a strength of 2.4, again near LScoupling. For all these fines the effects of configuration

interaction and deviations from LS-coupling do not enter

sensitively into the results. Thus, these transition probabilities should be considered accurate to within 10 percent,

while all other magnetic dipole fines are uncertain within

about 25 percent.

Analogously, the transition probabilities for a number of

electric quadrupole fines depend essentially only on the

quadrupole integral sQ. These are the transitions ^o - X D2 , 3 P2 — 3 Pi, and 3 P2 — 3 P0 for the p

2 and p

4 configurations and

2 D5/2 - 2 P3,2. 2D^-2P«, 2 Df/2 - 2P;)2 , and 2% for the

p

3 configuration. Within a given spectrum these should

be the best available quadrupole fines and they have been

estimated to be accurate within 25 percent, while the rest of the quadrupole transitions should be accurate within 50

percent. On the whole, electric quadrupole fines have been

rated to be of lower accuracy than magnetic dipole fines,

since the uncertainties in the quadrupole integral must be

added to the other uncertainties already present for the

magnetic dipole fines.

Further details on the calculations of forbidden fine

strengths may be found in the recent review article by

Garstang [42].

D. METHOD OF EVALUATION

We shall now discuss the general steps in the evaluation

of the data: The literature, as taken from the files of our data

center, has first been screened for outdated and superseded

material. The remaining articles have then been individually studied and the results collected in comparison

v
tables. Additional values have been computed by employing the Coulomb approximation by Bates and Damgaard [2]

whenever this has been considered necessary and useful.

When large discrepancies or odd values have appeared

in the comparison tables, we have searched for likely sources

of numerical errors, and have also communicated in many

instances with the respective authors.

The evaluation and final selection of the sets of best

values depends so much on the particular material available

for each ion that the main justifications for the selections

has to be delegated to the individual introductions. Only

a few general rules on the selection may be given now:

Thus, self-consistent field calculations with exchange

effects have been regarded as superseding those not in- cluding these effects 4

; the Coulomb approximation is generally not employed when the transition is very far from

being hydrogen-like, e.g., when the lower state is the ground

state or when it contains two or more electrons of the same

principal quantum number; experiments employing photoelectric techniques are preferred over similar experiments

utilizing photographic detection; measurements with wallstabilized arc sources are considered superseding analogous

measurements with fluid- or gas-stabilized arc sources be- cause of the stability problems of the latter. For forbidden

lines, the calculations based on empirical term intervals are preferred to those based on the Slater theory for intermultiplet separations, since a theoretical study [40] shows

that the effects of configuration interaction, which are often

important, are at least partially taken into account by the

first approach.

When several methods of comparable quality are available, the results are averaged to obtain the best value. If one method appears clearly better than the others, only

those results are employed.

The final step in the evaluation is the estimate of the

uncertainties. At the present status of our knowledge, we

find it impossible to assign specific numerical error limits

to each transition. Instead we have introduced a classification scheme with several classes of accuracy, and assigned

each transition probability to a certain class. We have used

the following arbitrary notation:

AA for uncertainties within 1%

A do 3%

B do 10%

C do 25%

D do 50%

E for uncertainties larger than 50%

The word uncertainty is being used in the meaning “extent

of possible error” or “possible deviation from the true

value”. We are aware that this is far from being a precise

definition of error, but, considering the multitude of approaches to the error discussions in the various papers

(or the lack of them), it seems impossible to find a better

common denominator. Uncertainties of class “AA'\ i.e., values that are essentially exact, are found only in hydrogen

and a few transitions of helium. Going to the other ex- treme, we have included class “E” data, i.e., very uncertain values, only in those special cases, when for the most

important and most characteristic lines of a spectrum no

better data are available, so that otherwise these fines would

4 Fortunately, most of the selected self-consistent field calculations include exchange effects in varying degrees of refinement.

have to be omitted. Occasionally, we have made a further

differentiation in the classification scheme by assigning

plus or minus signs to some transitions. This serves to indicate that these fines are significantly better or worse

than the average values, but do no quite belong into the

next higher or lower class. They should be therefore the

first or last choice among similar lines.

Since the theoretical treatments essentially do not permit

error estimates per se, these have to be obtained from

comparisons with experimental and other theoretical

determinations or from general consistency checks, such as applications of /-sum rules, etc. A few rather audacious

extrapolations have had to be undertaken, when no reliable

comparison material was available. On the other hand, the

errors given by the experimentalists are sometimes only

indications of their precision, and no allowance is made for

systematic errors. Therefore, we have generally been more

conservative with our error estimates, and hope that we

have arrived at a realistic and consistent error presentation.

E. ARRANGEMENT AND EXPLANATION OF

COLUMNS

We have adopted the present arrangement of the tables

after consulting with a number of physicists working in

three fields from which — it is anticipated — most of the users

of this compilation will come, i.e., spectroscopy, astrophysics, and plasma physics.

We feel that of the multitude of units in which transition

probabilities are expressed, the adopted combination of the

transition probability for spontaneous emission Am (in sec

-1

), the absorption oscillator strength fk (dimensionless), the

log gf (a further discussion of the statistical weight g is given in Appendix B) and the fine strengths (in atomic units)

gives a very adequate representation. The other units are

either not commonly used or, in case of gf and gA, may be

obtained by simply multiplying two columns of the table.

The units that are only occasionally used are:

1. The transition probability of absorption Bn: (i = lower,

A' = upper state) which is related to Am by

£* = 6.01 A

3 ~ Aki (6)

(A is the wavelength in Angstrom units, and g-,. gk are the statistical weights, further discussed in

Appendix B)

2. The transition probability of induced emission Bki, which is related to Aki by

£*, = 6.01 A

3 Aki . (7)

3. The emission oscillator strength fki, which is related

to the absorption oscillator strength /•* by

/«=-%». ( 8) §k

In addition, some authors have introduced still other

quantities, but these have not found general acceptance

and will not be considered further.

The conversion factors between the tabulated quantities

Aki, fik, and S are fisted in table III, as reproduced from

reference [1]. (For the case of hydrogen, we have employed

the reduced mass and other appropriate constants in the

conversion factors.)

vi
The general arrangement of the tables according to in- creasing atomic number and stage ol ionization needs no

further comments. The material for the individual ions

is further subdivided into sections for allowed (electric

dipole) and forbidden transitions. As forbidden transitions we have considered all magnetic dipole and electric

quadrupole lines. Intercombination lines, although they

are forbidden in the case of pure LS-coupling, are listed

under allowed transitions, since they are electric dipole

transitions.

The tabulations for each ion start out with listings of the

ground state configuration and the ionization potential,

both taken from ref. [43]. In all cases, where we have

tabulated more than 20 allowed lines per ion, we have then

assembled a “finding list,” i.e., we have arranged the lines

in order of increasing wavelength and indicated their position in the main tables — which are arranged according

to spectroscopic notation — by listing their running numbers.

The latter are given in front of the spectroscopic notation

in the tables. These finding lists should, for many applications, permit one to find out quickly which lines are cov- ered in the present tabulation.

Each table is then preceded by a short introduction

containing in brief the major reasons which have led to the

selection of the presented data and their classification in

terms of accuracy. This is followed by a reference list of

the selected articles.

It remains to discuss the columns of the main tables: The

first part of the tables contains data connected with the

identification of lines, i.e., spectroscopic notation, wavelength, and energy levels. All these data have been taken

from the compilations by Mrs. Moore-Sitterly, i.e., the “Revised Multiplet Table” [3], the “Ultraviolet Multiplet Tables” [4], and “Atomic Energy Levels,” Vol. I, and addenda

in Vols. II and III, recent reports of the Triple Commission

for Spectroscopy [44], and from newer material generously

furnished by her. All designations, as usual, are written

in terms of the absorption process, i.e., the lower (initial) state first. For the classification of the fines we have

employed the standard spectroscopic notation for LScoupling, with the exception of Nel, where we have used

the .//-coupling notation, all in accordance with the above

mentioned “Atomic Energy Levels” tables. In fisting

the transition arrays, we have presented only the electrons

in the unfilled shells. Furthermore, to distinguish between

the different supermultiplets, we have inserted the parent

terms in the notation. If they are given only once, as is generally the case, then no change occurs from lower to upper state. For all spectra with pronounced multiplet structure, i.e., for Be I through Ne I and their isoelectronic sequences, we

have arranged the fines according to a configurational order:

They are grouped to multiplets, supermultiplets, transition

arrays, and increasing quantum numbers. Within the

transition arrays, the multiplets are in order of increasing

lower energy levels. Individual fines within the multiplets

are fisted whenever the total wavelength spread amounts to more than 0.01 percent. This arrangement is convenient

for the application of /-sum rules 5 and to the similar one used

in the “Revised Multiplet Table” [3] and “Ultraviolet Multiplet Tables” [4]. At first we attempted to copy and extend

these older arrangements, but this would have meant that

many new multiplets had to be inserted. Therefore, we

abandoned this plan. We have, however, made reference to

5

It should he mentioned, that for allowed transitions the strengths S of lines in a multiplet add up

to the total multiplet strength (see also appendix B), and that for forbidden transitions the total transition probability is obtained by adding the electric quadrupole and magnetic dipole probabilities.

the two multiplet fists by including the multiplet numbers

in the present tabulation. The numbers are given in parentheses under the multiplet designation. The letters “uf”

are added if the numbers are from the “Ultraviolet Multiplet

Tables.”

For the He I isoelectronic sequence we have changed the

arrangement slightly by fisting the singlets and triplets

separately.

For hydrogen we have made several changes in the ar- rangement to adapt the tables to the very divergent applications in theory and experiment: The tables are split into

four separate parts: In table A we fist the “average” transition probabilities, etc., for the transitions between lower

state of principal quantum number rc* and upper state nk . These are defined by the following relations:

'i "*

(9)

f* 2Z;+ 1 r J nu nk Zj 2

(nl)k (10)

**• h nt

S%i,nk = X S(nl)iAnl)k

- (11)

'k, h

These “average” values are applicable to most problems

in plasma spectroscopy and astrophysics. This is due to the circumstance that states with the same principal (n),

but different orbital (/) quantum numbers fall practically

together (“degeneracy”), so that only a single fine is observed

for all the possible combinations between states of different

principal quantum numbers. The only assumption entering

into the application of “average” values is that the atomic

substates must be occupied according to their statistical

weights [45]. The above assumption is fulfilled for any

reasonably dense plasma, where the excited atoms undergo

many collisions during their lifetimes.

In table B the probabilities for transitions between the

various sublevels (nl)i — {nl)k are fisted. This table should

be useful primarily for theoretical applications. Tables

C and D, finally, contain the most important fine structure

[(nlj)i —(nlj)k] and hyperfine structure fines \{nljf)i — {nljf)u\

of hydrogen (j = inner or total electronic angular momentum

quantum number; /—total atomic angular momentum quantum number). For these two special tables we have made

a further change by presenting frequencies and energy'

differences rather than the usual wavelengths and energy'

levels.

In all other tables, the energy levels are given (in units

of cm-1

) relative to the ground state with Eo — 0. We have

limited the numerical values to six digits which should be

more than sufficient for all applications. The same limitation was imposed on the wavelengths.

In a number of cases we have had to calculate wavelengths from energy level differences. These are given in

brackets to distinguish them from the presumably more

accurate observed material. However, hydrogen is an

obvious exception. Also given in brackets are all energy'

levels which are not derived from the analysis of spectra,

but are extrapolated or obtained from approximate wave

function calculations. We have included in this category

those energy levels derived from observational material

that are shifted by an unknown amount indicated by an

Vll
“x” or “y” in ref. [43]. Those calculated or extrapolated

values which we expect to be quite uncertain have been

indicated, in addition to the brackets, by a question mark.

The averaged energy levels for a multiplet have been

obtained by weighting the component levels according to their statistical weights, and the multiplet wavelength is calculated from the averaged energy levels, taking the re- fraction of air into account for wavelengths longer than 2000

A [42]. These averaged values are indicated by italics. The statistical weights g have been included in this tabulation because of their importance in applications involving

line intensities. They have been obtained from the inner

quantum numbers J listed in the “Atomic Energy Levels”

by applying the relations given in Appendix B. The second part of the table contains the data proper.

The numerical values contain as many digits as are consistent with the estimated accuracy of the data. 6 The numbers in the source column refer to the references

listed after the individual introductions. If two or more

references are listed, we have given each source equal

weight in arriving at the averaged value. If the data for all lines of a multiplet are given, then these are either obtained

from the relationships listed in Appendix B and from LScoupling tables [17-19], which is indicated in the source column by “/s”, or they are obtained directly from the

literature. In the latter case they are sometimes marked

“n”, if they are normalized to a basis which is different

from the one chosen originally by the authors. Similarly,

the multiplet values sometimes have been renormalized

and have been marked “n”.

For the forbidden lines, a few small changes in the ar- rangement have been made. First, we have indicated the

type of transition, i.e., we have listed an “m” for magnetic

dipole and “e” for electric quadrupole lines. Furthermore,

the log gf and fik columns are omitted, since these units are

not used for forbidden lines. (The line strength S, which

now has different atomic units (see table III), is also used

infrequently). It should be noted that the total transition

probabilities of forbidden lines are obtained by adding the

magnetic dipole and electric quadrupole values.

We finally would like to mention that we have assembled

and explained in Appendix A all abbreviations appearing

in the tabulations.

F. FUTURE PLANS AND

ACKNOWLEDGEMENTS

It is our plan to extend this critical compilation to all other elements and make revisions whenever necessary.

The present tables should therefore be regarded as the first volume of a larger work spanning all elements. However,

realization of this large project in a systematic fashion,

say, in order of increasing atomic number, does not appear

feasible at the present time, since there are relatively few

reliable data available for many heavier elements, and

essentially none for higher stages of ionization. As an

interim solution, we probably shall attempt to assemble,

in an irregular fashion, tables of best values for the spectra

of those heavier elements and ions for which extensive

and worthwhile data are presently at hand. These will

be primarily the heavier noble gases, some of the wellknown metals, the alkalis, and the alkaline earths. Also,

the third period of the periodic table appears to be promising.

6 During the computations and conversions all digits were retained and finally rounded off. Thus,

it may sometimes occur that the line strengths do not exactly add up to the multiplet strength.

Finally, it is our wish and hope that this compilation may

stimulate further work on the lightest ten elements, since

many gaps and unreliable data are evident on closer in- spection of the tables. The two areas that merit the highest

attention are the higher ions and those lower excited

transitions that are subject to the effects of configuration

interaction.

It is our pleasure to acknowledge the help and collaboration of many workers in this field. In particular, we would

like to thank P. S. Kelly and B. H. Armstrong for sending

us preprints of their extensive SCF-calculations on nitrogen

and oxygen, H. R. Griem for supplying us with a computer

program to calculate Bates-Damgaard values; and R. H.

Garstang and A. M. Naqvi for extensive discussions and

some re-calculations of transition probabilities for forbidden

lines.

We also express our sincere gratitude to the students

who have worked during the past summers on the prelimiary aspects of this compilation: These are Mary DesJardins,

Maureen Zagronic, Berry Cobb, Don Hall, and Paul Voigt.

We would finally like to thank several of our collegues at NBS; especially A.W. Weiss for many useful discussions

and for carrying out many SCF-calculations when serious

gaps in the data showed up; Mrs. C. E. Moore-Sitterly for

generously furnishing us with new material on energy

levels and wavelengths; and J. Z. Klose for undertaking a

lifetime study for important excited states of Ne I. It is also a pleasure to acknowledge the competent help of

Miss Jean Bates and Mrs. Marilyn Duffany in typing and

proofreading the manuscript.

References

[1] Glennon, B. M. and Wiese, W. L., National Bureau of Standards

Monograph 50 (1962) (U.S. Government Printing Office, Washington,

D.C.).

[2] Bates, D. R. and Damgaard, A., Phil. Trans. Roy. Soc. London A242,

101 (1949).

[3] Moore, C. E., “A Multiplet Table of Astrophysical Interest, Revised

Edition,” National Bureau of Standards Tech. Note 36 (1959) (U.S.

Government Printing Office, Washington, D.C.).

[4] Moore, C. E., “An Ultraviolet Multiplet Table,” National Bureau of Standards Circular 488, Sec. 1 (1950) (U.S. Government Printing

Office, Washington, D.C.).

[5] Wiese, W. L. in “Proceedings Xth Colloq. Spectrosc. Internat.,”

p. 37, (Spartan Books, Washington, D.C., 1963).

[61 Foster, E. W., Repts. Prog, in Physics, XXVII, 469 (1964).

[7] Berg, H. F., Eckerle, K. L. Burris, R. W., and Wiese, W . L.. Astrophys.

J. 139, 751 (1964).

[8] Richter, J., Z. Astrophysik 53, 262 (1961).

[9] Frie, W. and Maecker, H., Z. Physik 162, 69.(1961).

[10] Wiese, W. L., Chapter VI in “Plasma Diagnostics,” (edited by Huddlestone, R. H. and Leonard, S. L., Academic Press, New York, 1965).

[11] Griem, H. R., Phys. Rev. 128, 997 (1962).

[12] Shumaker, Jr., J. B., Rev. Sci. Instr. 32, 65 (1961).

[13] Maecker, H., Z. Naturforsch. 11,457(1956).

[14] Bennett, Jr., W. R., Kindlmann, P. J., and Mercer, G. N., Applied

Optics, Supplement 2 of Chemical Lasers, 34 (1965).

[15] Rozhdestvenskii, D., Ann. Physik 39, 307 (1912).

[16] Penkin, N. P., J. Quant. Spectrosc. Radiat. Transfer 4, 41 (1964).

[17] Goldberg, L., Astrophys J. 82, 1 (1935) and 84, 11 (1936).

[18] White, H. E. and Eliason, A. Y., Phys. Rev. 44, 753 (1933).

[19] Allen, C. W., “Astrophysical Quantities,” 2d Ed. (The Athlone Press, London, 1963).

[20] Hartree, D. R., “The Calculation of Atomic Structures,” (John Wiley

and Sons, New York, 1956).

[21] Fock, V., Z. Physik 61, 126 (1930).

[22] Trefftz, E., Schliiter, A., Dettmar, K. H., and Jdrgens, K., Z. Astro- phvsik 44. 1 (1957).

[23] Biermann, L. and Liibeck, K., Z. Astrophysik 25, 325 (1948).

[24] Roothaan, C. C. J. and Bagus. P. S.. in “Methods in Computational

Physics”, Vol. II p. 47 (Academic Press, New York, 1963).

[25] Weiss, A. W'.. Astrophys. J. 138, 1262 (1963).

viii
[26] Kelly, P. S., J. Quant. Spectrosc. Radial. Transfer 4, 1 17 (1964).

[27 j Weiss, A. W., private communication (1964).

|28] Yutsis, A. P., Zliur. Ekspt 1. i Teoret, Fiz. 23, 129 (1952).

[29] Boldt, G., Z. Naturforsch. ISA, 1107 (1963).

j 30 1 Lahuhn, F., to be published in Z. Naturforsch.

[31] Garstang, R. H., Monthly Notices Roy. Astron. Soc. Ill, 115(1951).

[32] Garstang, R. H., Astrophys. J. 1 15, 506 (1952).

[33] Garstang, R. H., Monthly Notices Roy. Astron. Soc. 120, 201 (1960).

[34] Naqvi, A. M., Thesis Harvard (1951).

[35] Seaton, M. J. and Osterbrock, D. E., Astrophys. J. 125, 66 (1957).

[36| Yamanouchi, T. and Horie, H., J. Phys. Soc. japan 7, 52 (1952).

[37 1 Ufford, C. W. and Gilmour, R. M., Astrophys. J. Ill, 580 (1950).

[38] Shortley, G. H., Aller, L. H., Baker, J. G., and Menzel, D. H., Astro- phys. J. 93, 178(1941).

[39| Slater, .). C., Phys. Rev. 34, 1293 (1929).

[40] Garstang, R. 11., Proc. Cambridge Phil. Soc. 52, 107 (1956).

[41 j Omhoit, A., Geofys. Publikasjoner Norske Videnskaps. — Akad. Oslo

21,1 (1959). [42 1 Garstang, R. H., Chapter I in “Atomic and Molecular Processes”,

(edited by Bates, I). R., Academic Press, New York, 1962).

[43] Moore, C. E., “Atomic Energy Levels”, National Bureau of Standards

Circular 467; Vol. 1 (1949); Vol. II (1952); Vol. Ill (1958) (U.S. Gov- ernment Printing Office, Washington, D.C.).

[44J Reports of the Triple Commission for Spectroscopy, J. Opt. Soc. Am.

52, 476 (1962); 52, 583 (1962); 53, 885 (1963).

[45] Bethe, H. A. and Salpeter, E. E., “Quantum Mechanics of One-and

Two-Electron Atoms”, (Academic Press, New York, 1957).

[46] Coleman, C. D., Bozman, W. R., and Meggers, W. F.. National Bureau

of Standards Monograph 3 (1960) (U.S. Government Printing Office,

Washington, D.C.).

Table 1.

Relationships between the quantities for hydrogen, indicated by H, and hydrogen-like ions of charge Z

(the other symbols are explained in Sec. E).

/z=/h Sz = Z-2Sh Az = Z*A h

Table II. Reference hst of additional material which is considered to be quite reliable but not covered in the table

because of its very limited use (the quantum numbers are given in their customary notation).

Spectrum Transitions Author

Hi 2~*n for 41 ^ n ^ 60

> nklk for 5 =£ m =5 20, 6 s£ nk *£ 20,

and all possible /-values

21—* nl for 21 n *£ 60

Green, L. C., Rush, P. P., and Chandler,

C. D., Astrophys. J. Suppl. Ser. 3, 37

(1957).

Hi Is —* np for 7 =£ n ^ 50

21—» nl for 7 =£ ri =£ 50

and all possible /-values

3/ —* ft/ for 7 ft 50

and all possible /-values

4/ —* nl for 7 =£ n =£ 50

and all possible /-values

Harriman, J. M., Phys. Rev. 101, 594 (1956)

and Document No. 4705, American Documentation Institute Auxiliary Publications Project, Photoduphcation Service,

Library of Congress, Washington, D. C.

Ni s~p , p^d, and d~f for 2 =£ n =£ 11; with ls2 2s22p2 core

s-p, p-d, and d-f for 2 =£ ft *£ 8; with ls22s 2p

3 and ls2 2p4 cores

Kelly, P. S., J. Quant. Spectrosc. Radiat.

Transfer 4, 117-148 (1964).

N ii, O in s —p, p — d, and d—f for 2 =£ ft =£ 8; with ls2 2s2 2p

core

Kelly, P. S., J. Quant. Spectrosc. Radiat.

Transfer 4, 117-148 (1964).

N iii, O iv s—p, p — d, and d—f for 2 =£ ft =£ 8; with ls2 2s2 core

Kelly, P. S., J. Quant. Spectrosc. Radiat.

Transfer 4, 117-148 (1964).

N iv, O v s—p, p-d, and d-f for 2 =£ ft 8; with ls22s core

Kelly, P. S., J. Quant. Spectrosc. Radiat.

Transfer 4, 117-148 (1964).

N v, O vi s~p, p~d, and d-f for 2 =£ « =£ 8; with Is2 core

Kelly, P. S., J. Quant. Spectrosc. Radiat.

Transfer 4, 117-148 (1964).

O i s-p, p~d, and d-f for 2 *£ ft *£ 8; with ls22s22p3 core

Kelly, P. S., J. Quant. Spectrosc. Radiat.

Transfer 4, 117-148 (1964).

O ii s~p, p-d, and d~f for 2 *£ ft =£ 8; with ls 2 2s22p2 core

Kelly, P. S., J. Quant. Spectrosc. Radiat.

Transfer 4, 117-148 (1964).

tx
Table III.

Conversion factors. The factor in eaeli box converts by multiplication the quantity above it into the one

at its left.

Aki u S

Ed 2.026, x 1018 gkk3

Aki 1 6.6702 x 1015 gi

Eq 1.679s x 1018 E

2 gk gkk5

Md

2.6972 x 1013 gkk

3

Ed 303.7.5 gik

fik 1.4992 X 10_16

A. 2 —

gi

1

Eq 251.8

gik3

Md

4.043« x lO-3 g>k

Ed 4.9356 x 10-19£fe A

3 Ed 3.292, X 10-3gA

S

Eq 5.953 x 10- 19g^5 Eq 3.971 X 10-3g,X3

1 Md 3.7076 x 10-14g*\3 Md 247.3ogik

The line strength is given in atomic units, which are: For electric dipole transitions (allowed — denoted by Ed):

aoe

2 = 6.4594 X 10-36 cm2 esu2

;

for electric quadrupole transitions (forbidden — denoted by Eq

):

aqe

2 — 1.808s X 10-52 cm4 esu2

;

for magnetic dipole transitions (forbidden — denoted by Md):

e

2h

2

1 16n2 me

2c2 — 8.599 X 10-41 erg2 gauss

-2

. The transition probability is in units sec

-1

, and the /-value is dimensionless. The wavelength k

is given in Angstrom units, andg, and gk are the statistical weights of the lower and upper state,

respectively.
APPENDIX A APPENDIX B

Key to abbreviations and symbols used in tbe tallies (A) Symbols for indication of accuracy:

AA uncertainties within 1%

A do 3%

B do 10%

C do 25%

D do 50%

E uncertainties larger than 50%

(B) Abbreviations appearing in the source column of

allowed transitions

ls = LS-coupling

ca = Coulomb approximation

n = normalized to a different scale

(C) Types of forbidden lines

e = electric quadrupole line

m = magnetic dipole line

(Total transition probabilities of forbidden lines are obtained by adding the e- and m-values).

(D) Special symbols used in the wavelength and energy

level columns.

Number in parentheses under multiplet notation refers

to running number of ref. [3] (Revised Multiplet Table)

If letters “uf” are added, reference is made to running

number in ref. [4] (Ultraviolet Multiplet Table)

Numbers in italics indicate multiplet values, i.e.,

weighted averages of line values.

Numbers in square brackets approximate calculated

or extrapolated values.

Question marks indicate rather uncertain values.

(A) Statistical Weights:

I'he statistical weights are related to the inner quantum

number 7, (in one-electron spectra j ) of a level (initial and

final states of a line) by

gL = 27, + 1

,

and to the quantum numbers of a term (initial and final states of a multiplet) by

gm — (2

L

+ 1) (2

S

+1).

(The “multiplet” values g\t may also be obtained by summing

over all possible “line” values gi,. S is the resultant spin.)

(B) Relations between the strengths of fines and the total multiplet strength:

1. Line strength S:

S(i, k)= ^ S(Ji, Jk) Ji’ Jk

or S(Multiplet) = ^ S(fine)

(

k

denotes the upper and i the lower term).

2. Absorption oscillator strength:

frn ultip.et = ___[ £ (27, + 1) X k(Ji, Jk) Xf(Ji. Jk) Kk 2, (27i+ 1) Jk ,Jf

Ji

The mean wavelength for the multiplet A.,,- may be obtained

from the weighted energy levels. Usually the wavelength

differences for the fines within a multiplet are very small, so that the wavelength factors may be neglected.

3.

Transition probabilities

^ AT

mpiet =_ 1 y (27fc + 1 ) x k(Jit Jk)3 x A{Jk, Ji)

(\i,)

3 2 (27* +1) jfrik Jk

Relative strengths S(/,, 7*) of the components of a multiplet are fisted in refs. [17—19] for the case of LS-coupfing.

xi

766-655 0-66—2

HYDROGEN

H

Ground State \ s 2S, /2

Ionization Potential 13.595 eV = 109678.758 cm'1

Allowed Transitions

For hydrogen a special tabular arrangement is used. In Table A the “average” transition probabilities for transitions between lower states of principal quantum number (n)* to upper states

(u)a- are listed. They are taken from extensive calculations by Green, Rush, and Chandler; Harriman; Herdan and Hughes; Karzas and Latter; and Menzel and Pekeris [1]. These values are applicable to most problems in plasma spectroscopy and astrophysics (see general introduction,

Sec. E). Table B contains the probabilities for transitions between the various sublevels ( n/)* — (nl)k- This table should be useful primarily for theoretical applications. Both tables include

only four significant figures since relativistic effects, which are of the order of a

2

, have been

neglected in the calculations (a is the fine structure constant). It should be noted that Green,

Rush, and Chandler; and Harriman fist more transitions, but these, not being of any practical

importance, are omitted.

Table C contains the values for nine fine structure lines as calculated from the work of Wild [2]. The effect of the Lamb shift has been taken into account by using his equation (4a) to calculate

the fine strength and then by using the energy levels given in NBS Circular 467 (Atomic Energy

Levels) for conversion into the other quantities.

The values for the transition between the two hyperfine structure components of the 1 s

2Si/2 level are also taken from Wild [2] and are given in Table D. This magnetic dipole transition has

a statistical weight of 2/4-1, where / is j ±1/2 for hydrogen.

The metastable 25 2 Si/2 level gives rise to transitions to the ground state only by means of twophoton emission. This process was studied in particular by Shapiro and Breit [3]. Their calculation of the transition probability for the 15 2 Si/2 — 25 2 Si /2 transition gives a value of 8.23 sec

-1 with an estimated accuracy of better than 3 percent. The transition itself gives rise to a continuum;

hence no / or S values are given.

Finally, it should be mentioned that in the conversion factors used for hydrogen the reduced mass and other appropriate constants are taken into account.

References

[1] Green, L. C., Rush, P. P., and Chandler, C. D., Astrophys. J. Suppl. Ser. 3, 37-50 (1957); Harriman, J. M., Phys. Rev. 101, 594—598 (1956) and Document No. 4705, American Documentation Institute Auxiliary Publications Project,

Photoduplication Service, Library of Congress, Washington, D. C.; Herdan, R., and Hughes, T. P., Astrophys. J. 133,

294-298 (1961); Karzas, W. J., and Latter, R., Astrophys. J. Suppl. Ser. 6, 167—212 (1961); Menzel, D. H., and Pekeris,

C. L., Monthly Notices Roy. Astron. Soc. 96, 77-111 (1935).

[2] Wild, J. P., Astrophys. J. 115, 206-221 (1952).

[3] Shapiro, J., and Breit, G., Phys. Rev. 113, 179—181 (1959).

1
H-Table A. (n)i— (n)k Transitions (Average Values)*

Transition MA) £i(cm_1

) Ek{cm 4 ) Si gk /l/a(sec

-1

) fk S(at.u.) log gf

AccuracySource

1-2 (L„) 1215.67 0 82259 2 8 4.699 x 108 0.4162 3.330 -0.0797 AA 1 1-3 (La) 1025.72 0 97492 2 18 5.575 X 107 7.910 x 10~2 0.5339 -0.8008 AA 1 1-4 (Ly) 792.537 0 102824 2 32 1.278 X 107 2.899 X 10“2 0.1855 -1.2367 AA 1 1-5 (L8) 949.743 0 105292 2 50 4.125 x 106 1.394 x 10-2 8.711 X lO"2 -1.5548 AA 1 1-6 (Le ) 937.803 0 106632 2 72 1.644 x 106 7.799 X 10-3 4.813 x 10-2 -1.8069 AA 1 1-7 930.748 0 107440 2 98 7.568 x 105 4.814 x 10-3 2.948 x 10“2 -2.0165 AA 1 1-8 926.226 0 107965 2 128 3.869 x 105 3.183 x lO"3 1.940 x 10“2 -2.1961 AA 1 1-9 923.150 0 108325 2 162 2.143 x 105 2.216 x 10-3 1.346 x 10-2 -2.3534 AA 1 1-10 920.963 0 108582 2 200 1.263 x 105 1.605 x 10-3 9.729 X lO"3 -2.4934 AA 1 1-11 919.352 0 108772 2 242 7.834 x 104 1.201 x 10-3 7.263 x 10-3 -2.6196 AA 1 1-12 918.129 0 108917 2 288 5.066 x 104 9.214 x 10-4 5.567 x lO"3 -2.7345 AA 1 1-13 917.181 0 109030 2 338 3.393 x 104 7.227 x 10“4 4.362 x 10-3 -2.8400 AA 1 1-14 916.429 0 109119 2 392 2.341 X 104 5.774 x lO"4 3.482 x 10-3 -2.9375 AA 1 1-15 915.824 0 109191 2 450 1.657 X 104 4.686 x 10-4 2.824 X 10"3 -3.0281 AA 1 1-16 915.329 0 109250 2 512 1.200 x 104 3.856 X 10-4 2.323 x 10-3 -3.1129 AA 1 1-17 914.919 0 109299 2 578 8858 3.211 x 10-4 1.933 x 10-3 -3.1924 AA 1 1-18 914.576 0 109340 2 648 6654 2.702 x 10“4 1.626 X 10“3 -3.2673 AA 1 1-19 914.286 0 109375 2 722 5077 2.296 x lO"4 1.381 X lO”3 -3.3381 AA 1 1-20 914.039 0 109405 2 800 3928 1.967 x 10-4 1.183 x 10“3 -3.4052 AA 1 1-21 913.826 0 109430 2 882 3077 1.698 x 10-4 1.021 x 10-3 -3.4691 AA 1 1-22 913.641 0 109452 2 968 2438 1.476 x 10-4 8.874 x 10“4 -3.5299 AA 1 1-23 913.480 0 109471 2 1058 1952 1.291 x 10-4 7.761 x 10“4 -3.5880 AA 1 1-24 913.339 0 109488 2 1152 1578 1.136 x 10-4 6.827 x 10-4 -3.6436 AA 1 1-25 913.215 0 109503 2 1250 1286 1.005 x 10“4 6.037 x 10-4 -3.6970 AA 1 1-26 913.104 0 109517 2 1352 1057 8.928 x 10-5 5.364 x 10-4 -3.7482 AA 1 1-27 913.006 0 109528 2 1458 875.3 7.970 X lO"5 4.788 x lO"4 -3.7975 AA 1 1-28 912.918 0 109539 2 1568 729.7 7.144 x 10-5 4.292 x lO"4 -3.8450 AA 1 1-29 912.839 0 109548 2 1682 612.2 6.429 X 10“5 3.862 X lO"4 -3.8908 AA 1 1-30 912.768 0 109557 2 1800 516.7 5.806 x 10-5 3.487 X 10-4 -3.9351 AA 1 1-31 912.703 0 109565 2 1922 438.6 5.261 x lO"5 3.160 X lO"4 -3.9779 AA 1 1-32 912.645 0 109572 2 2048 374.2 4.782 x 10-5 2.872 X 10-4 -4.0193 AA 1 1-33 912.592 0 109578 2 2178 320.8 4.360 X 10-5 2.618 x 10"4 -4.0595 AA 1 1-34 912.543 0 109584 2 2312 276.3 3.986 x 10-5 2.394 X 10-4 - 4.0985 AA 1; 1-35 912.499 0 109589 2 2450 239.0 3.653 x 10-5 2.194 X 10-4 -4.1363 AA 1 1-36 912.458 0 109594 2 2592 207.6 3.357 x 10-5 2.016 x 10-4 -4.1730 AA 1 1-37 912.420 0 109599 2 2738 181.0 3.092 x 10“5 1.856 x 10-4 -4.2088 AA 1 1-38 912.385 0 109603 2 2888 158.4 2.854 x 10“5 - 1.713 x 10-4 -4.2436 AA 1 1-39 912.353 0 109607 2 3042 139.1 2.640 x 10-5 1.585 x 10-4 -4.2774 AA 1 1-40 912.324 0 109610 2 3200 122.6 2.446 x 10-5 1.469 x 10-4 -4.3105 AA 1 2-3 (Ha) 6562.80 82259 97492 8 18 4.410 X 107 0.6407 110.7 . 0.7098 AA 1 2-4 (Ha) 4861.32 82259 102824 8 32 8.419 X 106 0.1193 15.27 -0.0202 AA 1 2-5 (HJ 4340.46 82259 105292 8 50 2.530 x 106 4.467 X 10“ 2 5.105 -0.4469 AA 1 2-6 (Ha) 4101.73 82259 106632 8 72 9.732 x 105 2.209 X 10-2 2.386 -0.7527 AA 1 2-7 m 3970.07 82259 107440 8 98 4.389 x 105 1.270 x 10-2 1.328 -0.9929 AA 1 2-8 3889.05 82259 107965 8 128 2.215 x 105 8.036 x 10-3 0.8228 -1.1919 AA 1 2-9 3835.38 82259 108325 8 162 1.216 x 105 5.429 x 10-3 0.5482 -1.3622 AA 1 2-10 3797.90 82259 108582 8 200 7.122 x 104 3.851 x 10-3 0.3851 -1.5114 AA 1 2-11 3770.63 82259 108772 8 242 4.397 x 104 2.835 x lO"3 0.2815 -1.6443 AA 1 2-12 3750.15 82259 108917 8 288 2.834 x 104 2.151 x 10-3 0.2124 -1.7643 AA 1 2-13 3734.37 82259 109030 8 338 1.893 X 104 1.672 x 10-3 0.1644 - 1.8737 AA 1 2-14 3721.94 82259 109119 8 392 1.303 x 104 1.326 x 10-3 0.1300 -1.9743 AA 1 2-15 3711.97 82259 109191 8 450 9210 1.070 x 10-3 0.1046 -2.0674 AA 1 2-16 3703.85 82259 109250 8 512 6658 8.764 x 10-4 8.547 X 10- 2 -2.1542 AA 1 2-17 3697.15 82259 109299 8 578 4910 7.270 x 10-4 7.077 X 10- 2 -2.2354 AA 1

2
H -Table A. ( n)i —

(

n)k Transitions (Average Values)— Continued

Transition X(A) Ei{cm ') Ek( cm ‘) gi gk Akt( sec

-1

) fk S(at.u.) log gf

Accuracy Source

2-18 3691.55 82259 109340 8 648 3685 6.099 x lO"4 5.928 X 10-2 - 2.3117 AA 1 2-19 3686.83 82259 109375 8 722 2809 5.167 x 10"4 5.016 x 10-2 - 2.3837 AA 1 2-20 3682.81 82259 109405 8 800 2172 4.416 x lO 4 4.283 X lO"2 - 2.4518 AA 1 2-21 3679.35 82259 109430 8 882 1700 3.805 x 10-4 3.686 X 10-2 - 2.5165 AA 1 2-22 3676.36 82259 109452 8 968 1347 3.302 X lO"4 3.196 X lO"2 - 2.5781 AA 1 2-23 3673.76 82259 109471 8 1058 1078 2.884 X 10-4 2.790 x 10-2 - 2.6369 AA 1 2-24 3671.48 82259 109488 8 1152 870.7 2.534 X 10- 4 2.449 X 10-2 - 2.6931 AA 1 2-25 3669.46 82259 109503 8 1250 709.6 2.238 X 10“4 2.163 x 10-2 - 2.7470 AA 1 2-26 3667.68 82259 109517 8 1352 583.0 1.987 x 10-4 1.919 x 10-2 - 2.7987 AA 1 2-27 3666.10 82259 109528 8 1458 482.6 1.772 x 10-4 1 . 711 x 10-2 - 2.8484 AA 1 2-28 3664.68 82259 109539 8 1568 402.2 1.587 x 10~4 1.532 x 10-2 - 2.8962 AA 1 2-29 3663.40 82259 109548 8 1682 337.4 1.427 x 10-4 1.377 x 10-2 - 2.9424 AA 1 2-30 3662.26 82259 109557 8 1800 284.7 1.288 X 10“4 1.242 x 10-2 - 2.9869 AA 1 2-31 3661.22 82259 109565 8 1922 241.6 1.167 x 10-4 1.125 x 10"2 - 3.0300 AA 1 2-32 3660.28 82259 109572 8 2048 206.1 1.060 x 10-4 1 . 021 x 10-2 - 3.0717 AA 1 2-33 3659.42 82259 109578 8 2178 176.7 9.658 x lO"5 9.305 x 10-3 - 3.1120 AA 1 2-34 3658.64 82259 109584 8 2312 152.2 8.825 X 10"5 8.501 x 10-3 - 3.1512 AA 1 2-35 3657.92 82259 109589 8 2450 131.6 8.086 X 10-5 7.788 x 10-3 - 3.1892 AA 1 2-36 3657.27 82259 109594 8 2592 114.3 7.427 x lO"5 7.152 X 10-3 - 3.2261 AA 1 2-37 3656.66 82259 109599 8 2738 99.66 6.837 X 10-5 6.583 X 10-3 - 3.2620 AA 1 2-38 3656.11 82259 109603 8 2888 87.20 6.309 X 10-5 6.073 X lO"3 - 3.2969 AA 1 2-39 3655.59 82259 109607 8 3042 76.57 5.834 x lO"5 5.615 X 10-3 - 3.3310 AA 1 2-40 3655.12 82259 109610 8 3200 67.46 5.405 X 10~5 5 . 202 X 10-3 - 3.3641 AA 1 3-4 (P„) 18751.0 97492 102824 18 32 8.986 X 106 0.8421 935.4 1.1806 AA 1 3-5 ( Pa) 12818.1 97492 105292 18 50 2.201 X 106 0.1506 114.3 0.4331 AA 1 3-6 (Py) 10938.1 97492 106632 18 72 7.783 X 105 5.584 X 10-2 36.18 0.0022 AA 1 3-7 (P«) 10049.4 97492 107440 18 98 3.358 X 105 2.768 X 10-2 16.48 - 0.3025 AA 1 3-8 (P«) 9545.98 97492 107965 18 128 1.651 X 105 1.604 X 10-2 9.069 - 0.5396 AA 1 3-9 9229.02 97492 108325 18 162 8.905 x 104 1.023 X 10-2 5.595 - 0.7347 AA 1 3-10 9014.91 97492 108582 18 200 5.156 X 104 6.980 x lO"3 3.728 - 0.9009 AA 1 3-11 8862.79 97492 108772 18 242 3.156 X 104 4.996 X 10-3 2.623 - 1.0461 AA 1 3-12 8750.47 97492 108917 18 288 2.021 X 104 3.711 X 10-3 1.924 - 1.1752 AA 1 3-13 8665.02 97492 109030 18 338 1.343 X 104 2.839 x 10-3 1.457 - 1.2916 AA 1 3-14 8598.39 97492 109119 18 392 9211 2.224 x 10-3 1.133 - 1.3977 AA 1 3-15 8545.39 97492 109191 18 450 6490 1.776 X 10-3 0.8992 - 1.4952 AA 1 3-16 8502.49 97492 109250 18 512 4680 1.443 x 10"3 0.7267 - 1.5855 AA 1 3-17 8467.26 97492 109299 18 578 3444 1.188 x lO”3 0.5963 - 1.6696 AA 1 3-18 8437.96 97492 109340 18 648 2580 9.916 x 10- 4 0.4957 - 1.7484 AA 1 3-19 8413.32 97492 109375 18 722 1964 8.361 x 10“4 0.4167 - 1.8225 AA 1 3-20 8392.40 97492 109405 18 800 1517 7.118 x 10-4 0.3539 - 1.8924 AA 1

4-5 40512.0 102824 105292 32 50 2.699 X 106 1.038 4428 1.5212 AA 1 4-6 26252.0 102824 106632 32 72 7.711 X 105 0.1793 495.6 0.7586 AA 1 4-7 21655.0 102824 107440 32 98 3.041 X 105 6.549 X lO"2 149.4 0.3213 AA 1 4-8 19445.6 102824 107965 32 128 1.424 X 105 3.230 X lO" 2 66.14 0.0143 AA 1 4-9 18174.1 102824 108325 32 162 7.459 X 104 1.870 x 10-2 35.79 - 0.2230 AA 1 4-10 17362.1 102824 108582 32 200 4.235 X 104 1.196 x 10-2 21.87 - 0.4171 AA 1 4-11 16806.5 102824 108772 32 242 2.556 X 104 8.187 x 10-3 14.49 - 0.5817 AA 1 4-12 16407.2 102824 108917 32 288 1.620 X 104 5.886 x 10- 3 10.17 - 0.7250 AA 1 4-13 16109.3 102824 109030 32 338 1.069 x 104 4.393 X 10-3 7.452 - 0.8521 AA 1 4-14 15880.5 102824 109119 32 392 7288 3.375 X lO"3 5.645 - 0.9665 AA 1 4-15 15700.7 102824 109191 32 450 5110 2.656 x 10"3 4.392 - 1.0706 AA 1 4-16 15556.5 102824 109250 32 512 3671 2.131 x 10-3 3.492 - 1.1662 AA 1 4-17 15438.9 102824 109299 32 578 2693 1.739 x 10-3 2.827 - 1.2547 AA 1 4-18 15341.8 102824 109340 32 648 2013 1.439 x 10-3 2.324 - 1.3370 AA 1 4-19 15260.6 102824 109375 32 722 1529 1.204 x 10-3 1.936 - 1.4141 AA 1 4-20 15191.8 102824 109405 32 800 1178 1.019 x 10-3 1.631 - 1.4865 AA 1

3
H — Table A. (n)i — (ti)a- Transitions (Average Values) —Continued

Transition MA) Ei(cm 4

) Ek(cm ! ) gi gk Aki( sec ') fk S(at.u.) log gf

Accuracy

Source

5-6 74578 105292 106632 50 72 1.025 x 106 1.231 1.511 x 104 1.7893 AA 1 5-7 46525 105292 107440 50 98 3.253 x 105 0.2069 1584 1.0147 AA 1 5-8 37395 105292 107965 50 128 1.388 x 10s 7.448 X 10-2 458.3 0.5710 AA 1 5-9 32961 105292 108325 50 162 6.908 X 104 3.645 X 10“2 197.7 0.2607 AA 1 5-10 30384 105292 108582 50 200 3.800 x 104 2.104 x 10-2 105.2 0.0219 AA 1 5-11 28722 105292 108772 50 242 2.246 x 104 1.344 x 10-2 63.55 -0.1725 AA 1 5-12 27575 105292 108917 50 288 1.402 x 104 9.209 x 10-3 41.79 -0.3368 AA 1 5-13 26744 105292 109030 50 338 9148 6.631 x 10-3 29.18 -0.4794 AA 1 5-14 26119 105292 109119 50 392 6185 4.959 x 10-3 21.32 - 0.6056 AA 1 5-15 25636 105292 109191 50 450 4308 3.821 x 10-3 16.12 -0.7189 AA 1 5-16 25254 105292 109250 50 512 3079 3.014 x 10-3 12.53 -0.8218 AA 1 5-17 24946 105292 109299 50 578 2249 2.425 x 10-3 9.957 -0.9162 AA 1 5-18 24693 105292 109340 50 648 1675 1.984 x 10"3 8.062 -1.0035 AA 1 5-19 24483 105292 109375 50 722 1268 1.646 x lO"3 6.631 -1.0846 AA 1 5-20 24307 105292 109405 50 800 975.1 1.382 x 10-3 5.528 -1.1605 AA 1

6-7 123680 106632 107440 72 98 4.561 X 105 1.424 4.173 X 104 2.0108 AA 1 6-8 75005 106632 107965 72 128 1.561 X105 0.2340 4160 1.2266 AA 1 6-9 59066 106632 108325 72 162 7.065 x 104 8.315 X 10-2 1164 0.7772 AA 1 6-10 51273 106632 108582 72 200 3.688 X 104 4.038 X lO"2 490.6 0.4635 AA 1 6-11 46712 106632 108772 72 242 2.110 x 104 2.320 X 10“2 256.8 0.2227 AA 1 6-12 43753 106632 108917 72 288 1.288 x 104 1.479 x 10-2 153.3 0.0273 AA 1 6-13 41697 106632 109030 72 338 8271 1.012 xlO-2 100.0 -0.1374 AA 1 6-14 40198 106632 109119 72 392 5526 7.289 x lO"3 69.43 -0.2800 AA 1 6-15 39065 106632 109191 72 450 3815 5.455 x 10“3 50.50 - 0.4059 AA 1 6-16 38184 106632 109250 72 512 2707 4.207 X 10"3 38.07 -0.5186 AA 1 6-17 37484 106632 109299 72 578 1966 3.324 X 10“3 29.53 -0.6209 AA 1 6-18 36916 106632 109340 72 648 1457 2.679 x 10-3 23.44 -0.7146 AA 1 6-19 36449 106632 109375 72 722 1099 2.196 x 10“3 18.96 -0.8011 AA 1 6-20 36060 106632 109405 72 800 842.4 1.825 x lO'3 15.59 -0.8815 AA 1

7-8 190570 107440 107965 98 128 2.272 X 105 1.616 9.931 X 104 2.1996 AA 1 7-9 113060 107440 108325 98 162 8.237 X 104 0.2609 9514 1.4077 AA 1 7-10 87577 107440 108582 98 200 3.905 X 104 9.163 x lO"2 2588 0.9533 AA IS

7-11 75061 107440 108772 98 242 2.117 x 104 4.416 X 10-2 1069 0.6363 AA 1 7-12 67701 107440 108917 98 288 1.250 x 104 2.525 x lO"2 551.3 0.3935 AA 1 7-13 62902 107440 109030 98 338 7845 1.605X 10-2 325.7 0.1967 AA 1 7-14 59552 107440 109119 98 392 5156 1.097 x lO-2 210.6 0.0313 AA 1 7-15 57099 107440 109191 98 450 3516 7.891 X 10“3 145.3 -0.1116 AA 1 7-16 55237 107440 109250 98 512 2471 5.905 x 10-3 105.2 -0.2376 AA 1 7-17 53783 107440 109299 98 578 1781 4.556 X 10“3 79.03 -0.3502 AA 1 7-18 52622.5 107440 109340 98 648 1312 3.602 x 10-3 61.13 -0.4522 AA 1 7-19 51679 107440 109375 98 722 984.9 2.905 x 10-3 48.43 -0.5456 AA 1 7-20 50899 107440 109405 98 800 751.7 2.383 x 10-3 39.13 -0.6316 AA 1

8-9 277960 107965 108325 128 162 1.233 X 105 1.807 2.116 x 105 2.3642 AA 1 8-10 162050 107965 108582 128 200 4.676 x 104 0.2876 1.964 X 104 1.5661 AA 1 8-11 123840 107965 108772 128 242 2.301 X 104 0.1000 5217 1.1072 AA 1 8-12 105010 107965 108917 128 288 1.287 X 104 4.787 X lO-2 2117 0.7873 AA 1 8-13 93894 107965 109030 128 338 7804 2.724 X lO-2 1077 0.5424 AA 1 8-14 86621 107965 109119 128 392 5010 1.726 X lO-2 629.8 0.3442 AA 1 8-15 81527 107965 109191 128 450 3359 1.177 X lO"2 404.1 0.1778 AA 1 8-16 77782 107965 109250 128 512 2331 8.456 x 10“3 277.1 0.0344 AA 1 8-17 74930 107965 109299 128 578 1664 6.323 x 10-3 199.6 -0.0919 AA 1 8-18 72696 107965 109340 128 648 1216 4.877 x 10-3 149.4 -0.2046 AA 1 8-19 70908 107965 109375 128 722 906.9 3.856 x 10-3 115.2 -0.3066 AA 1 8-20 69448 107965 109405 128 800 688.6 3.112 x 10-3 91.04 -0.3998 AA 1

4
H-Table A. (n)j — (n)ic Transitions (Average Values) —Continued

Transition X(A) £i(cm_1

) Ek{cm ) gi gk Tfc,(sec -1

) fk S(at.u.) log gf

Accuracy

Source

9-10 388590 108325 108582 162 200 7.151 X 10 * 1.999 4.141 X 10s 2.5103 AA 1 9—11 223340 108325 108772 162 242 2.813 X 104 0.3143 3.742 x 104 1.7068 AA 1 9-12 168760 108325 108917 162 288 1.427 X 10 ' 0.1083 9746 1.2442 AA 1 9-13 141790 108325 109030 162 338 8192 5.152 X 10-2 3895 0.9215 AA 1 9-14 125840 108325 109119 162 392 5080 2.918 X 10-2 1958 0.6746 AA 1 9-15 115360 108325 109191 162 450 3325 1.843 X 10"2 1134 0.4750 AA 1 9-16 108010 108325 109250 162 512 2268 1.254 X 10"2 721.9 0.3077 AA 1 9-17 102580 108325 109299 162 578 1598 8.995 x 10-3 492.0 0.1635 AA 1 9-18 98443 108325 109340 162 648 1156 6.719 x 10-3 352.7 0.0368 AA 1 9-19 95191 108325 109375 162 722 855.5 5.180 x 10-3 262.9 - 0.0762 AA 1 9-20 92579 108325 109405 162 800 645.2 4.094 X 10-3 202.1 - 0.1783 AA 1

10-11 525200 108582 108772 200 242 4.377 X 104 2.190 7.571 X 105 2.6415 AA 1 10-12 298310 108582 108917 200 288 1.774 X 104 0.3408 6.692 X 104 1.8335 AA 1 10-13 223250 108852 109030 200 338 9231 0.1166 1.713 X 104 1.3676 AA 1 10-14 186100 108582 109119 200 392 5417 5.513 X 10-2 6753 1.0424 AA 1 10-15 164070 108582 109191 200 450 3424 3.109 X 10- 2 3358 0.7937 AA 1

10-16 149580 108582 109250 200 512 2280 1.958 X 10-2 1927 0.5928 AA 1 10-17 139380 108582 109299 200 578 1578 1 . 328 x 10-2 1219 0.4243 AA 1 10-18 131840 108582 109340 200 648 1127 9.515 X 10-3 825.8 0.2794 AA 1 10-19 126080 108582 109375 200 722 825.2 7.099 x 10-3 589.2 0.1522 AA 1 10-20 121530 108582 109405 200 800 617.3 5.468 X 10-3 437.4 0.0389 AA 1

11-12 690500 108772 108917 242 288 2.799 X 104 2.381 1.310 X 106 2.7606 AA 1 11-13 388320 108772 109030 242 338 1.163 X 104 0.3673 1.136 x 105 1.9489 AA 1 11-14 288230 108772 109119 242 392 6186 0.1248 2.865 X 104 1.4800 AA 1 11-15 238620 108772 109191 242 450 3699 5.872 X 10-2 1.116 x 104 1.1526 AA 1 11-16 209150 108772 109250 242 512 2377 3.298 X 10-2 5495 0.9021 AA 1 11-17 189730 108772 109299 242 578 1606 2.070 X 10-2 3129 0.6999 AA 1 11-18 176030 108772 109340 242 648 1127 1.402 x 10-2 1965 0.5304 AA 1 11-19 165900 108772 109375 242 722 814.1 1.002 x 10-2 1324 0.3848 AA 1 11-20 158120 108772 109405 242 800 602.6 7.468 x 10-3 940.5 0.2570 AA 1

12-13 887300 108917 109030 288 338 1.857 X 104 2.572 2.163 x 106 2.8697 AA 1 12-14 494740 108917 109119 288 392 7884 0.3938 1.847 X 105 2.0547 AA 1 12-15 364610 108917 109191 288 450 4271 0.1330 4.596 X 104 1.5832 AA 1 12-16 300020 108917 109250 288 512 2596 6.228 X 10-2 1.771 x 104 1.2538 AA 1 12-17 261610 108917 109299 288 578 1693 3.486 x 10“2 8644 1.0017 AA 1 12-18 236260 108917 109340 288 648 1159 2.182 x 10-2 4886 0.7982 AA 1 12-19 218360 108917 109375 288 722 822.3 1.474 x 10-2 3050 0.6278 AA 1 12-20 205090 108917 109405 288 800 600.5 1.052 x 10-2 2045 0.4814 AA 1

13-14 1118000 109030 109119 338 392 1.271 X 104 2.763 3.438 x 106 2.9703 AA 1 13-15 619000 109030 109191 338 450 5496 0.4202 2.894 X 105 2.1524 AA 1 13-16 453290 109030 109250 338 512 3026 0.1412 7.119 x 104 1.6787 AA 1 13-17 371000 109030 109299 338 578 1866 6.584 X 10~2 2.717 x 104 1.3474 AA 1 13-18 322000 109030 109340 338 648 1232 3.672 X 10-2 1.316 x 104 1.0939 AA 1 13-19 289640 109030 109375 338 722 853.2 2.292 X 10-2 7386 0.8892 AA 1 13-20 266740 109030 109405 338 800 611.9 1.545 X 10-2 4584 0.7178 AA 1

14-15 1386000 109119 109191 392 450 8933 2.954 5.284 X 106 3.0637 AA 1 14-16 762300 109119 109250 392 512 3926 0.4467 4.393 x 105 2.2433 AA 1 14-17 555200 109119 109299 392 578 2192 0.1494 1.070 X 105 1.7675 AA 1 14-18 452220 109119 109340 392 648 1369 6.938 X 10-2 4.048 x 104

1 .4345 AA 1

5
H — Table A. (n)i—{n)k Transitions (Average Values) — Continued

Transition X(A) £i(cm ! ) Ek( cm x

) gt gk Aki ( sec 4

) fik S(at.u.) log gf

Accuracy

Source

14-19 390880 109119 109375 392 722 914.4 3.858 X 10-2 1.946 X 104 1.1796 AA 1 14-20 350300 109119 109405 392 800 639.7 2.402 X 10“2 1.086 X 104 0.9738 AA 1

15-16 1694000 109191 109250 450 512 6429 3.145 7.889 x 106 3.1509 AA 1 15-17 926100 109191 109299 450 578 2864 0.4731 6.489 X 105 2.3281 AA 1 15-18 671200 109191 109340 450 648 1620 0.1575 1.566 X 105 1.8505 AA 1 15-19 544400 109191 109375 450 722 1023 7.292 X 10-2 5.879 X 104 1.5160 AA 1 15-20 468760 109191 109405 450 800 690.3 4.043 X 10“2 2.807 X 104 1.2599 AA 1

16-17 2044000 109250 109299 512 578 4720 3.336 1.149 X 107 3.2325 AA 1 16-18 1112000 109250 109340 512 648 2130 0.4995 9.358 X 105 2.4078 AA 1 16-19 802300 109250 109375 512 722 1217 0.1657 2.240 X 105 1.9285 AA 1 16-20 648200 109250 109405 512 800 776.7 7.644 X 10~2 8.349 X 104 1.5926 AA 1

17-18 2438000 109299 109340 578 648 3530 3.527 1.636 X 107 3.3094 AA 1 17-19 1321000 109299 109375 578 722 1610 0.5259 1.321 x 106 2.4828 AA 1 17-20 949200 109299 109405 578 800 929.6 0.1738 3.139 x 105 2.0020 AA 1

18-19 2882000 109340 109375 648 722 2680 3.718 2.285 X 107 3.3819 AA 1 18-20 1554000 109340 109405 648 800 1235 0.5523 1.831 x 106 2.5537 AA 1

19-20 3374000 109375 109405 722 800 2067 3.909 3.134 x 107 3.4506 AA 1

H-Table B. ( nl)i — (nl)k Transitions

Transition X(A) £i(cm *) Ek(cm *) gi gk Aki( sec ! ) fik S(at.u.) log gf

Accuracy

Source

Is — 2p 1215.67 0 82259 2 6 6.265 x 108 0.4162 3.330 -0.0797 AA 1 Is — 3p 1025.72 0 97492 2 6 1.672 x 108 7.910 X 10-2 0.5339 -0.8008 AA 1 Is — 4p 972.537 0 102824 2 6 6.818 x 107 2.899 X 10-2 0.1855 -1.2367 AA 1 Is — 5p 949.743 0 105292 2 6 3.437 x 107 1.394 X 10~ 2 8.711 X 10- 2 -1.5548 AA 1 Is — 6p 937.804 0 106632 2 6 1.973 x 107 7.800 X 10-3 4.813 x 10-2 -1.8069 AA 1

2p — 3s 6562.86 82259 97492 6 2 6.313 x 10s 1.359 x 10-2 1.761 -1.0886 AA 1 2p — 4s 4861.35 82259 102824 6 2 2.578 x 10s 3.045 X 10“3 0.2923 - 1.7383 AA 1 2p — 5s 4340.48 82259 105292 6 2 1.289 x 106 1.213 x 10-3 0.1040 -2.1379 AA 1 2p — 6s 4101.75 82259 106632 6 2 7.350 x 105 6.180 x 10-4 5.006 x 10~2 -2.4309 AA 1

2s — 3p 6562.74 82259 97492 2 6 2.245 x 107 0.4349 18.79 -0.0606 AA 1 2s — 4p 4861.29 82259 102824 2 6 9.668 X 106 0.1028 3.288 -0.6871 AA 1 2s — 5p 4340.44 82259 105292 2 6 4.948 X 106 4.193 x 10-2 1.198 - 1.0764 AA 1 2s — 6p 4101.71 82259 106632 2 6 2.858 x 106 2.163 X 10“2 0.5840 - 1.3639 AA 1 2p-3d 6562.81 82259 97492 6 10 6.465 x 107 0.6958 90.17 0.6206 AA 1 2p-4d 4861.33 82259 102824 6 10 2.062 X 107 0.1218 11.69 -0.1362 AA 1 2p — 5d 4340.47 82259 105292 6 10 9.425 X 10fi 4.437 X 10-2 3.803 -0.5748 AA 1 2p-6d 4101.74 82259 106632 6 10 5.145 x 108 2.163 x 10-2 1.752 -0.8868 AA 1

6
H — Table B. ( nl)i —(nl)k Transitions . — Continued

Transition MA) £i(cm ') £V(cm ') gi gk Aki( sec *) Slat.u.) log gf

Accuracy Source

3s — 4p 18750.8 97492 102824 2 6 3.065 x 106 0.4847 59.83 -0.0135 AA 1 3s — 5p

12818.0 97492 105292 2 6 1.638 x 10,! 0.1210 10.21 -0.6161 AA 1 3s — 6p

10938.0 97492 106632 2 6 9.551 x 10> 5.139 x 10-2 3.700 -0.9881 AA 1

3p — 4s 18751.1 97492 102824 6 2 1.835 X 106 3.225 x 10-2 11.94 -0.7133 AA 1 3p — 5s 12818.1 97492 105292 6 2 9.046 X 105 7.428 X 10-3 1.880 -1.3510 AA 1 3p — 6s 10938.1 97492 106632 6 2 5.071 x 105 3.032 x 10-3 0.6550 - 1.7401 AA 1

3p — 4d 18750.9 97492 102824 6 10 7.037 X 108 0.6183 228.9 0.5693 AA 1 3p — 5d 12818.0 97492 105292 6 10 3.391 x 10H 0.1392 35.24 -0.0781 AA 1 3p — 6d 10938.1 97492 106632 6 10 1.878 X 106 5.614 X 10-2 12.13 -0.4726 AA 1

3d —4p 18751.2 97492 102824 10 6 3.475 X 105 1.099 X 10-2 6.783 -0.9589 AA 1 3d — 5p

12818.2 97492 105292 10 6 1.495 X 105 2.210 X 10“3 0.9324 -1.6556 AA 1 3d — 6p 10938.1 97492 106632 10 6 7.824 X 104 8.420 X 10- 4 0.3031 -2.0747 AA 1

3d -4/ 18751.1 97492 102824 10 14 1.379 X 107 1.018 628.0 1.0075 AA 1 3d — 5/ 12818.1 97492 105292 10 14 4.542 x 106 0.1566 66.08 0.1949 AA 1 3d -6/ 10938.

1

97492 106632 10 14 2.146 x 108 5.389 X 10- 2 19.40 -0.2685 AA 1

4s — 5p 40511 102824 105292 2 6 7.372 X 105 0.5442 145.1 0.0368 AA 1 4s — 6p 26251 102824 106632 2 6 4.456 X 105 0.1381 23.87 -0.5587 AA 1

4p — 5s 40512 102824 105292 6 2 6.450 X 105 5.291 X 10“ 2 42.33 -0.4983 AA 1 4p — 6s 26251 102824 106632 6 2 3.582 x 105 1.234 X 10-2 6.396 -1.1306 AA 1

4p — 5d 40511 102824 105292 6 10 1.486 X 106 0.6093 487.4 0.5630 AA 1 4p — 6d 26251 102824 106632 6 10 8.622 X 105 0.1485 76.96 -0.0502 AA 1

4d — 5p 40512 102824 105292 10 6 1.884 X 105 2.782 X 10“ 2 37.10 -0.5556 AA 1 4d — 6p 26252 102824 106632 10 6 9.416 x 104 5.837 X 10-3 5.044 -1.2338 AA 1

4d — 5/ 40512 102824 105292 10 14 2.584 X 10* 0.8903 1187 0.9495 AA 1 4d— 6/ 26252 102824 106632 10 14 1.287 X 106 0.1862 160.8 0.2699 AA 1

4/-5d 40512 102824 105292 14 10 5.047 X 104 8.871 X 10“3 16.56 -0.9059 AA 1 4/-6d 26252 102824 106632 14 10 2.145 X104 1.583 X 10-3 1.915 -1.6544 AA 1

4/— 5# 40512 102824 105292 14 18 4.254 X 106 1.346 2512 1.2751 AA 1 4/-6g 26252 102824 106632 14 18 1.373 x 106 0.1824 220.6 0.4070 AA 1

5s — 6p 74577 105292 106632 2 6 2.430 x 105 0.6078 298.4 0.0848 AA 1

5p — 6s 74578 105292 106632 6 2 2.682 X 105 7.454 x 10-2 109.8 -0.3495 AA 1

5p — 6d 74578 105292 106632 6 10 4.495 X 105 0.6247 920.0 0.5738 AA 1

5d — 6p 74579 105292 106632 10 6 9.593 X 104 4.800 X 10-2 117.8 -0.3188 AA 1

5d— 6/ 74578 105292 106632 10 14 7.232 X 105 0.8443 2072 0.9265 AA 1

5/— 6d 74579 105292 106632 14 10 3.908 x 104 2.328 X 10“2 79.98 -0.4870 AA 1

5/-6g 74578 105292 106632 14 18 1.106 x 106 1.185 4073 1.2200 AA 1 %-6/ 74579 105292 106632 18 14 1.137 x 104 7.376 X 10-3 32.59 -0.8769 AA 1

5g — 6h 74578 105292 106632 18 22 1.645 x 106 1.676 7406 1.4796 AA 1

7
H — Table C. (nlj)i — {nlj)k Transitions (Fine Structure Lines)

Transition v(Mc/sec) gi gk AkAsec fik S(at.u.) log gf Accuracy

Source

25 2 S1/2 -2p2P0

3/2 9884 0.3297 2 4 6.54 x 10- 7 1.80 x lO"5 36.0 - 4.443 A 2

35 2S1 /2-3p 2 P°3/2 2944 0.0982 2 4 1.04 x 10- 7 3.22 X 10-5 216 -4.191 A 2

3p 2 P°i/ 2 — 3c? 2 D3/2 3244 0.1082 2 4 8.67 x 10-8 2.22 X 10-5 135 -4.353 A 2

3p 2 P°3/2-3^ 2 D5/2 1082 0.0361 4 6 3.86 x 10-9 6.67 x 10-6 243 -4.574 A 2

45 2 S1/2 -4p 2 P

0

3/2 1247 0.0416 2 4 2.63 x lO-8 4.55 x 10~5 720 -4.041 A 2

4p 2 P°i/2 — 4c? 2 D3/2 1367 0.0456 2 4 2.77 x lO"8 3.99 x 10~5 576 -4.098 A 2

4p 2 P°3/2 — 4c? 2 D5/2 456 0.0152 4 6 1.23 x 10-9 1.20 x 10-5 1040 -4.320 A 2

4c? 2 D3/2 — 4/2 F°5/2 456 0.0152 4 6 7.18 X 10- 10 6.98 x 10-6 605 -4.554 A 2

4c? 2 D5/2 — 4/2F°7/ 2 228 0.0076 6 8 9.61 x 10- n 3.33 x 10-6 864 -4.700 A 2

H — Table D. ( nljf)i — {nljf)k Transition (Hyperfine Structure Line, Magnetic Dipole

Transition)

Transition ^(Mc/sec) A£(cm *) gi gk Aki{sec *) fik S(at.u.) log gf Accuracy

Source

Is 2 Sx/2 (f=0~*f=l) 1420.4 0.04738 1 3 2.87 X 10- 15 5.75 x 10- 12 3.00 -11.241 A 2

8
HELIUM

He I

Ground State Is2 'So

Ionization Potential 24.580 eV = 198305 cm' 1

Allowed Transitions

List of tabulated lines:

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

506.200 11 4387.93 29 19543 105

506.570 10 4437.55 23 20425 113

507.058 9 4471.5 86 20581.3 12 507.718 8 4713.2 80 21120 97

508.643 7 4921.93 28 21132.0 39

509.998 6 5015.68 13 21494 116

512.098 5 5047.74 22 21608 126

515.617 4 5875.7 85 21617 67

522.213 3 6678.15 27 21841 60

537.030 2 7065.19 79 22284 57

584.334 1 7065.71 79 23063 54

2677.1 78 7281.35 21 24727 120

2696.1 77 8361.77 96 26113 63

2723.2 76 9463.57 95 26185 125

2763.8 75 9603.42 38 26198 66

2829.07 74 9702.66 100 26248 69

2945.10 73 10311 104 26251 128

3187.74 72 10667.6 99 26531 59

3231.27 20 10829.1 70 26671 122

3258.28 19 10830.2 70 26881 115

3296.77 18 10830.3 70 27600 56

3354.55 17 10902.2 48 28542 112

3447.59 16 10912.9 110 33299 53

3554.4 92 10917.0 51 37026 119

3562.95 84 10996.6 107 40053 62

3587.3 91 11013.1 37 40365 124

3613.64 15 11045.0 44 40396 65

3634.2 90 11225.9 41 40536 68

3652.0 83 11969.1 103 40550 127

3705.0 89 12528 94 41216 58

3819.6 88 12755.7 47 42430 121

3833.55 34 12785 109 42497 93

3867.5 82 12790.3 50 46053 55

3871.79 33 12846 98 46936 114

3888.65 71 12968.4 43 74351 35

3926.53 32 12985 106 108800 111 3935.91 26 13411.8 40 180950 52

3964.73 14 15083.7 36 186200 101

4009.27 31 17002 102 439440 118

4023.97 25 18555.6 46 957600 45

4026.2 87 18686 108 2.16 X 10fi 61

4120.8 81 18696.9 49 1.39 X 10 7 123

4143.76 30 19063 117 1.82 X 10 7 64

4168.97 24 19089.4 42
Aside from hydrogen, extremely precise /-values exist only for a few lines of helium. These

are the result of extensive variational calculations (up to 220 parameter wave functions) of Schiff

and Pekeris, [1] which give an agreement of 1% or less between the dipole length, velocity, and

acceleration forms of the transition matrix element. Similar calculations have been undertaken

for a few other transitions by Weiss, [2] but are not quite as refined (up to 54 parameter wave functions) and the agreement between the different forms of the matrix element is not quite as good.

For transitions to higher excited states, recourse has to be taken to somewhat less elaborate

theoretical approximations. The following work has been used: Calculations by Low and Stewart

(unpublished, but results quoted by Dalgarno and Stewart [3]) with variational wave functions for

the ground state and modified hydrogenic wave functions for the excited states; similar calculations by Korwien [6]; self-consistent field calculations, including exchange and correlation effects,

by Trefftz, Schliiter, Dettmar, and Jorgens [4]; and applications of various sum rules to modify

calculated values by Dalgarno and Lynn [5], and Dalgarno and Kingston [7]. Furthermore, the

results of Goldberg [8], who employed screened hydrogenic wave functions, and Hylleraas [9], who

employed variational wave functions have been used in a few instances. (Hylleraas’ work has not

been extensively used, since it probably contains quite a number of numerical errors.) Finally,

for all other tabulated transitions, the Coulomb approximation (see general introduction) has been

employed, and is expected to give reliable results for this simple atom (uncertainties within 10%).

It should be noted that all above-mentioned calculations are nonrelativistic.

For some important helium lines reliable experimental data [10-13] are also available. They

all result from determinations of lifetimes of excited states and agree generally quite closely,

often within 10%, with the tabulated theoretical results, which are considered more accurate in

these cases.

References

[1] Schiff, B., and Pekeris, C. L., Phys. Rev. 134, A638-A640 (1964).

[2] Weiss, A. W., private communication (1962).

[3] Dalgarno, A., and Stewart, A. L., Proc. Phys. Soc. London A 76, 49-55 (1960).

[4] Trefftz, E., Schliiter, A., Dettmar, K. H., and Jorgens, K., Z. Astrophys. 44, 1—17 (1957).

[5j Dalgarno, A., and Lynn, N., Proc. Phys. Soc. London A 70, 802-808 (1957).

[6] Korwien, H., Z. Physik 91, 1-36 (1934).

[7] Dalgarno, A., and Kingston, A. E., Proc. Phys. Soc. London A 72, 1053-1060 (1958).

[8] Goldberg, L., Astrophys. J. 90, 414-428 (1939).

[9] Hylleraas, E. A., Z. Physik 106, 395-404 (1937).

[10] Heron, S., McWhirter, R. W. P., and Rhoderick, E. H., Proc. Roy. Soc. London A 234, 565—582 (1956).

[11] Osherovich, A. L., and Savich, J. G., Optika i Spektroskopiya 4, 715-718 (1958) (Translated in “Optical Transition

Probabilities,” Office of Technical Services, U.S. Department of Commerce, Washington, D.C.)

[12] Bennett, R. G., and Dalby, F. W., J. Chem. Phys. 31, 434-441 (1959).

[13] Kindlmann, P. J., and Bennett, W. R., Jr., Bull. Am. Phys. Soc. II 8, 87 (1963).
He I. Allowed Transitions

No. Transition

Array

Multiplet x(A) Ei( cm ') £*(cm-1

) g> gk /4a-,( 10* sec ') fk S(at.u.) log gf Accuracy Source

1 Is2 — ls2p 1 c _ 1 p°

(2 uv)

584.334 0 171135 1 3 17.99 0.2762 0.5313 - 0.5588 AA 1

2 ls2 -ls3p , S _ip°

(3 uv)

537.030 0 186210 1 3 5.66 0.0734 0.1298 -1.1343 AA 1

3 Is2 — ls4p *S — *P°

(4 uv)

522.213 0 191493 1 3 2.46 0.0302 0.0519 -1.520 A 2

4 Is2 — ls5p 1C _ 1P°

(5 uv)

515.617 0 193943 1 3 1.28 0.0153 0.0260 -1.815 B

+ 3

5 Is2 — ls6p i S _ip°

(6 uv)

512.098 0 195275 1 3 0.719 0.00848 0.0143 -2.072 B

+ 3,4

6 ls 2 -ls7p ic ip°

(7 uv)

509.998 0 196079 1 3 0.507 0.00593 0.00995 -2.227 B 5, 6

7 Is2 — ls8p 1C _ lpo

(8 uv)

508.643 0 196602 1 3 0.343 0.00399 0.00668 -2.399 B 5, 6

8 Is2 — ls9p 1C _ ip°

(9 uv)

507.718 0 196960 1 3 0.237 0.00275 0.00459 -2.561 B 5, 6

9 Is2 — IslOp ig_ ip°

(10 uv)

507.058 0 197216 1 3 0.181 0.00209 0.00349 -2.680 B 5, 6

10 Is2 — lsllp , S _ip° 506.570 0 197406 1 3 0.130 0.00150 0.00250 -2.824 B 6

11 Is2 — lsl2p iS-'P0 506.200 0 197550 1 3 0.104 0.00119 0.00199 -2.923 B 6

12 ls2s — ls2p is-ip0 20581.3 166278 171135 1 3 0.01976 0.3764 25.50 - 0.4244 AA 1

13 ls2s — ls3p is-ip0

(4)

5015.68 166278 186210 1 3 0.1338 0.1514 2.500 -0.8199 AA 1

14 ls2s — ls4p *S — 1 P°

(5)

3964.73 166278 191493 1 3 0.0717 0.0507 0.662 -1.295 A 2

15 ls2s — ls5p i S _ip°

(6)

3613.64 166278 193943 1 3 0.0376 0.0221 0.263 -1.656 B 7

16 ls2s — ls6p i S _ip°

(7)

3447.59 166278 195275 1 3 0.0239 0.0128 0.145 -1.894 A 4

17 ls2s — ls7p i S _ip°

(8)

3354.55 166278 196079 1 3 0.0130 0.00660 0.0729 -2.180 B 7

18 ls2s — ls8p »S — 1 P°

(9)

3296.77 166278 196602 1 3 0.00901 0.00440 0.0478 -2.356 B 7

19 ls2s — ls9p i S _ip0 3258.28 166278 196960 1 3 0.00650 0.00310 0.0333 -2.508 B 1

20 ls2s — IslOp 'S — 1 P° 3231.27 166278 197216 1 3 0.00490 0.00230 0.0245 -2.638 B t

21 ls2p — ls3s i P

o _iS

(45)

7281.35 171135 184865 3 1 0.181 0.0480 3.45 - 0.842 A 2

22 ls2p — ls4s ip°_iS

(47)

5047.74 171135 190940 3 1 0.0655 0.00834 0.416 - 1.602 A 4

23 ls2p— ls5s >P

0 -'S

(50)

4437.55 171135 193663 3 1 0.0313 0.00308 0.135 -2.034 B ca

24 ls2p— ls6s

(52)

4168.97 171135 195115 3 1 0.0176 0.00153 0.0630 - 2.338 A 4

11
He I. Allowed Transitions — Continued

No. Transition

Array

Multiplet MA) Ei(cm ') Ek( cm *) gi gk /tfc,-(10

8 sec ') ftk S(at.u.) log gf Accuracy

Source

25 ls2p — ls7s 1P°— *S

(54)

4023.97 171135 195979 3 1 0.0109 8.81 x 10-4 0.0350 -2.578 B+ 4

26 ls2p — ls8s i P°_iS

(57)

3935.91 171135 196535 3 1 0.00718 5.56 x 10-4 0.0216 -2.778 B+ 4

27 ls2p — ls3c? ip°_iD

(46)

6678.15 171135 186105 3 5 0.638 0.711 46.9 0.329 A 2

28 Is2p — ls4<f 1 P° — *D

(48)

4921.93 171135 191447 3 5 0.202 0.122 5.95 -0.435 A 4

29 ls2p — ls5rf 1 P° — ‘D

(51)

4387.93 171135 193918 3 5 0.0907 0.0436 1.89 -0.883 A 4

30 ls2p — 156a? ‘P

0 -^

(53)

4143.76 171135 195261 3 5 0.0495 0.0213 0.870 -1.195 B ca

31 Is2p — ls7d ip°_iD

(55)

4009.27 171135 196070 3 5 0.0279 0.0112 0.444 -1.473 C

+ 8

32 ls2p — ls8r/ ip°_iD

(58)

3926.53 171135 196596 3 5 0.0195 0.00750 0.291 -1.648 A 4

33 ls2p — ls9d ip°_iD

(60)

3871.79 171135 196956 3 5 0.0126 0.00471 0.180 -1.850 C+ 8

34 ls2p — lslOd ip°_iD

(62)

3833.55 171135 197213 3 5 0.00971 0.00357 0.135 -1.971 A 4

35 ls3s — ls3p l S- l P° [74351] 184865 186210 1 3 0.00253 0.629 154 -0.201 A 2

36 ls3s — ls4p i S _iP

° 15083.7 184865 191493 1 3 0.0137 0.140 6.95 -0.854 B 2

37 ls3s — ls5p iS_ip°

(70)

11013.1 184865 193943 1 3 0.00956 0.0521 1.89 -1.283 B ca

38 ls3s — ls6p i S _ i p°

(71)

9603.42 184865 195275 1 3 0.00564 0.0234 0.739 -1.631 B 9

39 ls3p — Ls4s i P°_iS 21132.0 186210 190940 3 1 0.0459 0.103 21.4 -0.512 B ca

40 ls3p — ls5s i P

°_iS [13411.8] 186210 193664 3 1 0.0202 0.0182 2.41 -1.263 B ca

41 ls3p — ls6s i P

°_iS

(87)

11225.9 186210 195115 3 1 0.0110 0.00690 0.765 -1.684 B ca

42 ls3p — ls4<f ip°_iD 19089.4 186210 191447 3 5 0.0711 0.647 122 0.288 B ca

43 ls3p — ls5c? 1 P° — ’D 12968.4 186210 193918 3 5 0.0331 0.139 17.8 -0.380 B ca

44 Is3p — ls6d ip0 -^

(88)

11045.0 186210 195261 3 5 0.0181 0.0553 6.03 -0.780 B ca

45 ls3d— ls3p 1 D- 1 P° [957600] 186105 186210 5 3 1.68 x 10-6 0.0139 219 -1.158 B 2

46 ls3d — ls4p •D — 1 P° 18555.6 186105 191447 5 3 0.00277 0.00858 2.62 -1.368 O 2

47 ls3d — ls5p *D — 1 P° 12755.7 186105 193943 5 3 0.00127 0.00186 0.390 -2.032 B ca

48 ls3d — ls6p iD-ip° 10902.2 186105 195275 5 3 9.23 X 10-4 9.86 X 10-4 0.177 -2.307 B 9

49 Is3d — ls4/ 18696.9 186105 191452 5 7 0.138 1.01 312 0.705 B ca

50 Is3d-ls5f ip-T0 12790.3 186105 193921 5 7 0.0461 0.158 33.3 -0.102 B ca

51 ls3d— ls6f J D — ‘F

0

(84)

10917.0 186105 195263 5 7 0.0212 0.0529 9.51 -0.577 B ca

12
He I. Allowed Transitions — Continued

No. Transition Multiplet mA) Ej(cm ') Ek( cm ') gi gk /*A-i(10

H sec-') fk S(at.u.) log gf \ccu- Source

Array racy

52 ls4s — ls4p i S _i P

° [180950] 190940 191493 1 3 5.79 X 10- 4 0.853 508 -0.069 B ca

53 ls4s — ls5p i S _ip° [33299] 190940 193943 1 3 0.00302 0.151 16.5 -0.822 B ca

54 ls4s — ls6p i S _ip° [23063] 190940 195275 1 3 0.00250 0.0599 4.55 -1.222 B ca

55 ls4p — ls5s ip°_iS [46053] 191493 193664 3 1 0.0150 0.159 72.2 - 0.322 B ca

56 ls4p — ls6s i P°_iS [27600] 191493 195115 3 1 0.00721 0.0274 7.48 -1.085 B ca

57 ls4p — ls7s *P°-*S [22284] 191493 195979 3 1 0.00438 0.0109 2.39 -1.487 B ca

58 ls4p — ls5e( 1 P° — ID [41216] 191493 193918 3 5 0.0153 0.649 264 0.289 B ca

59 ls4p — ls6d ip°_iD [26531] 191493 195261 3 5 0.00861 0.152 39.7 -0.342 B ca

60 ls4p — ls7d ‘P

0 -‘D [21841] 191493 196070 3 5 0.00533 0.0635 13.7 -0.720 B ca

61 ls4rf — ls4p D-JP0 [2.16 X10B

] 191447 191493 5 3 5.70 X 10- 7 0.0240 856 -0.920 B ca

62 ls4J — ls5p 'D-'P0 [40053] 191447 193943 5 3 0.00166 0.0240 15.8 -0.922 B ca

63 ls4e( — ls6p 1 D- 1 P° [26113] 191447 195275 5 3 7.85 x 10-4 0.00482 2.07 -1.618 B ca

64 Is4d-ls4/ 'D — 1 F° [1.82 X 107 ] 191447 191452 5 7 3.63 X 10" 10 0.00253 757 -1.899 B ca

65 l.s4c(— ls5/ D — ‘F

0 [40396] 191447 193921 5 7 0.0259 0.887 590 0.647 B ca

66 Is4</-ls6/ 1 D — 'F° [26198] 191447 195263 5 7 0.0130 0.187 80.7 -0.029 B ca

67 Is4d-ls7/ 'D — 1 F° [21617] 191447 196071 5 7 0.00734 0.0719 25.6 - 0.444 B ca

68 ls4/— \s5d 1 F° — >D [40536] 191452 193918 7 5 5.20 x 10-4 0.00915 8.55 -1.193 B ca

69 ls4/- ls6d 1 F° — ‘D [26248] 191452 195261 7 5 2.49 x 10-4 0.00184 1.11 -1.891 B ca

70 ls2s — ls2p 3§ _ 3p° 10830 159856 169087 3 9 0.1022 0.5391 57.66 0.2088 AA 1 (1) 10830.3 159856 169087 3 5 0.1022 0.2994 32.03 -0.0466 AA Is 10830.2 159856 169087 3 3 0.1022 0.1797 19.22 -0.2684 AA Is 10829.1 159856 169088 3 1 0.1022 0.05990 6.407 -0.7454 AA Is

71 ls2s — ls3p 3g _3p° 3888.65 159856 185565 3 9 0.09478 0.06446 2.476 -0.7136 AA 1

(2)

72 ls2s — ls4p 3g _3p° 3187.74 159856 191217 3 9 0.0505 0.0231 0.727 -1.159 B 2

(3)

73 ls2s — ls5p 3C 3p°

(11 uv)

2945.10 159856 193801 3 9 0.0293 0.0114 0.332 -1.465 B 7

74 ls2s — ls6p 3Q_3D°

(12 uv)

2829.07 159856 195193 3 9 0.0169 0.00608 0.170 -1.739 B 7

75 ls2s— l$7p 3g _ 3p° 2763.8 159856 196027 3 9 0.0111 0.00381 0.104 -1.942 B 7

76 152s — ls8p 3S _ 3 po 2723.2 159856 196567 3 9 0.00780 0.00260 0.0700 -2.108 B 7

77 ls2s — ls9p 35 _3p° 2696.1 159856 196935 3 9 0.00550 0.00180 0.0479 -2.268 B 1

78 ls2s — IslOp 3g _ 3p° 2677.1 159856 197198 3 9 0.00404 0.00130 0.0344 - 2.409 B i

79 ls2p — ls3s 3p° 33 7065.3 169087 183237 9 3 0.278 0.0693 14.5 -0.205 A 2

(10)

7065.19 169087 183237 5 3 0.154 0.0693 8.06 -0.460 A Is 7065.19 169087 183237 3 3 0.0925 0.0692 4.83 - 0.683 A Is 7065.71 169088 183237 1 3 0.0308 0.0692 1.61 -1.160 A Is

13
He I. Allowed Transitions — Continued

No. Transition

Array

Multiplet mA) £;(cm ') ftlcm ') gi gk /£i(108 sec ') fk S(at.u.) log gf AccuracySource

80 ls2p — ls4s 3p°_3g

(12)

4713.2 169087 190298 9 3 0.106 0.0118 1.65 -0.973 B 4

81 ls2p — ls5s 3p° _ 3g

(16)

4120.8 169087 193347 9 3 0.0430 0.00365 0.446 -1.483 B ca

82 ls2p — 156s 3p°_3g

(20)

3867.5 169087 194936 9 3 0.0236 0.00176 0.202 -1.800 B ca

83 ls2p — ls8s 3p°_35

(27)

3652.0 169087 196461 9 3 0.0108 7.21 X 10-4 0.0780 -2.188 B 4

84 ls2p — lslOs 3p°_3g

(33)

3562.95 169087 197145 9 3 0.00543 3.45 X 10-4 0.0364 -2.508 B 4

85 ls2p — ls3o? 3p° _ 3J) (ID

58 75.7 169087 186102 9 15 0.706 0.609 106 0.739 A 2

86 ls2p — ls4d 3p° 3p

(14)

4471.5 169087 191445 9 15 0.251 0.125 16.6 0.052 A 4

87 ls2p — ls5d 3p°_3J)

(18)

4026.2 169087 193917 9 15 0.117 0.0474 5.66 -0.370 A 4

88 ls2p — ls6d 3p°_3J)

(22)

3819.6 169087 195260 9 15 0.0589 0.0215 2.43 -0.714 B ca

89 Is2p — ls7d 3p° 3 J) (25)

3705.0 169087 196070 9 15 0.0444 0.0152 1.67 - 0.864 C

+ 8

90 ls2p — ls8d 3p°_3J)

(28)

3634.2 169087 196595 9 15 0.0261 0.00862 0.928 -1.110 A 4

91 ls2p — ls9d 3p°_3J)

(31)

3587.3 169087 196955 9 15 0.0205 0.00660 0.702 - 1.226 C+ 8

92 ls2p — lslOtf 3p° 3p

(34)

3554.4 169087 197213 9 15 0.0131 0.00414 0.436 -1.429 A 4

93 ls3s — ls3p 3g _ 3p° [42947] 183237 185565 3 9 0.0108 0.896 380 0.429 A 2

94 ls3s — ls4p 3g 3p° 12528 183237 191217 3 9 0.00608 0.0429 5.31 -0.890 B 2

95 ls3s — ls5p 3g _ 3p°

(67)

9463.57 183237 193801 3 9 0.00608 0.0245 2.29 -1.134 B ca

96 ls3s — ls6p 3g _ 3p°

(68)

8361.77 183237 195193 3 9 7.16 X 10-4 0.00225 0.186 -2.170 B 9

97 ls3p — ls4s 3p° 3g 21120 185565 190298 9 3 0.0652 0.145 91.0 0.117 B ca

98 ls3p — ls5s 3p° 3g 12846 185565 193347 9 3 0.0269 0.0222 8.45 - 0.699 B ca

99 ls3p — ls6s 3p°_3g

(73)

10667.6 185565 194936 9 3 0.0142 0.00810 2.56 -1.137 B ca

100 ls3p — ls7s 3p° 3g

(75)

9702.66 185565 195868 9 3 0.00858 0.00404 1.16 -1.440 B ca

101 ls3p — ls3d 3p°_3J) [186200] 185565 186102 9 15 1.28 X lO-4 0.111 613 0.000 A 2

102 ls3p — ls4d 3p°_3J) 17002 185565 191445 9 15 0.0668 0.482 243 0.638 B ca

103 ls3p — ls5d 3p° _ 3J) (72)

11969.1 185565 193917 9 15 0.0343 0.123 43.5 0.043 B ca

14
He I. Allowed Transitions — Continued

No. Transition

Array

Mult iplet \(A) J?i(cm ') £*(cm ') gi gk ^w(10" sec' 1 ) fik S(at.u.) log gf Accuracy Source

104 ls3p — \sbd :i P° — 3 D

(74)

10311 185565 195260 9 15 0.0197 0.0524 16.0 -0.327 B ca

105 ls3d — ls4p 3 D-3 P° 19543 186102 191217 15 9 0.00597 0.0205 19.8 -0.512 C

+ 2

106 ls3d — ls5p 3 D _3p° 12985 186102 193801 15 9 0.00274 0.00415 2.66 -1.206 B ca

107 1s3g?— Is6p 3 J) 3p°

(78)

10996.6 186102 195193 15 9 5.67 X 10-4 6.17 X lO"4 0.335 -2.034 B 9

108 ls3d- Is4/ 3 D-3F° 18686 186102 191452 15 21 0.139 1.02 937 1.183 B ca

109 Is3d-ls5/ 3J) _ 3p° 12785 186102 193921 15 21 0.0462 0.158 100 0.376 B ca

110 ls3<f— ls6/ 3J) _ 3p°

(79)

10912.9 186102 195263 15 21 0.0212 0.0531 28.6 -0.099 B ca

111 ls4s — ls4p 3S — 3p° [108800] 190298 191217 3 9 0.00227 1.21 1300 0.560 B ca

112 ls4s — ls5p 3g _ 3p° [28542] 190298 193801 3 9 0.00128 0.0468 13.2 -0.852 B ca

113 ls4s — ls6p 3g _ 3p° [20425] 190298 195193 3 9 0.00147 0.0276 5.57 -1.082 B ca

114 ls4p — ls5s 3p°_3g [46936] 191217 193347 9 3 0.0202 0.223 310 0.302 B ca

115 ls4p — Is6s 3p° 3g [26881] 191217 194936 9 3 0.00925 0.0334 26.6 -0.522 B ca

116 ls4p— ls7s 3p° 3g [21494] 191217 195868 9 3 0.00543 0.0125 7.99 -0.947 B ca

117 ls4p — ls8s 3p° 3g [19063] 191217 196461 9 3 0.00340 0.00618 3.49 -1.255 B ca

118 ls4p — ls4d 3p° 3jQ [439440] 191217 191445 9 15 4.15 X 10-5 0.200 2610 0.256 B ca

119 ls4p — ls5d 3p°_3J) [37026] 191217 193917 9 15 0.0129 0.442 485 0.600 B ca

120 ls4p — ls6d 3p°_3J) [24727] 191217 195260 9 15 0.00795 0.121 89.0 0.039 B ca

121 ls4d— ls5p 3J) _3p° [42430] 191445 193801 15 9 0.00333 0.0539 113 -0.092 B ca

122 ls4d— ls6p 3[) _3p° [26671] 191445 195193 15 9 0.00160 0.0102 13.5 -0.813 B ca

123 Is4d-ls4f 3[)_3p° [1.39 X 107 ] 191445 191452 15 21 8.15 X lO" 10 0.00331 2270 -1.305 B ca

124 Is4d-ls5f 3J)_3p° [40365] 191445 193921 15 21 0.0260 0.888 1770 1.125 B ca

125 ls4d — ls6f 3J) _ 3p° [26185] 191445 195263 15 21 0.0130 0.187 242 0.448 B ca

126 Is4d-ls7f 3J) _ 3p° [21608] 191445 196071 15 21 0.00734 0.0720 76.8 0.033 B ca

127 ls4f- ls5d 3p° 3 J) [40550] 191452 193917 21 15 5.25 X lO”4 0.00924 25.9 -0.712 B ca

128 ls4f- ls6d 3p° 3 J) [26251] 191452 195260 21 15 2.51 X 10-4 0.00185 3.36 -1.410 B ca

15

766-655 0-66—3
LITHIUM

Li I

Ground State ls22s

2 S 1/2

Ionization Potential 5.390 eV = 43487. 19 cm" 1

Allowed Transitions

List of tabulated lines:

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

2333.94 12 10510.6 28 28417 38

2340.16 11 10792.1 21 38081 40

2348.22 10 10919.1 33 40294 45

2358.92 9 11032.1 24 40562 47

2373.55 8 12237.7 27 41791 42

2394.36 7 12793.3 32 47804 50

2425.41 6 12928.9 30 54633 37

2475.06 5 13557.8 23 68592 34

2562.31 4 17546.1 26 70319 53

2741.19 3 18586.8 36 74379 56

3232.63 2 18703.1 31 75010 57

3985.5 16 19274.8 29 77145 54

4132.6 19 24464.7 22 102850 51

4273.1 15 24971 35 139610 49

4602.9 18 25197 41 279490 25

4971.7 14 26201 46 650000 39

6103.6 17 26260 48 1261000 52

6707.8 1 26536 43 1.04 X 107 55

8126.4 13 26877.8 20 1.47 x 107 44

The transition probabilities for the 2s — 2p, 2p — 3s, 2p — 3d, 3s — 3p, and 3p — 3d transitions are taken from the dipole length calculations of Weiss [1]. The values for the 2s — np (n = 3 . . . 13)

transitions are selected from the anomalous dispersion measurements of Filippov [2] normalized

to Weiss’ /-value for the resonance transition 2s — 2p. For this series, preference is given to Filippov’s experimental values since the theoretical methods show strong cancellation effects in

the transition integral. Uncertainties of not more than 10% are indicated by the very good agreement of the selected material with other determinations.

References

[1] Weiss, A. W„ Astrophys. J. 138, 1262-1276 (1963).

[2] Filippov, A. N., Z. Physik 69, 526-547 (1931); Zhur. Eksptl. i Teoret. Fiz. 2, 24-41 (1932) (translated in “Optical Transition Probabilities,” Office of Technical Services, U.S. Department of Commerce, Washington, D.C.).
Li I. Allowed Transitions

No. Transition

Array

Multiplet mA) £i(cm ') £/t(cm -1

) gi gk Ak{( sec

-1

) fk S(at.u.) log gf Accuracy

Source

1 2s — 2p 2g _ 2p°

(1) 6707.8 0.00 14903.9 2 6 3.72 X 107 0.753 33.3 0.178 A 1

2 2s — 3p

2g 2p°

(2) 3232.63 0.00 30925.4 2 6 1.17 X 106 0.00552 0.117 - 1.957 B 2

3 2s — 4p 2C 20°

(luv.

2741.19 0.00 36469.6 2 6 1.42 X 106 0.00480 0.0866 -2.018 B 2

4 2s — 5p

2C _ 2D°

(2 uv)

2562.31 0.00 39015.6 2 6 1.07 x 106 0.00316 0.0533 -2.199 B 2

5 2s — (ip 2C _ 2p°

(3 uv)

2475.06 0.00 40390.8 2 6 6.97 x 10s 0.00192 0.0313 -2.416 B 2

6 2s -Ip 2g _ 2p°

(4 uv)

2425.41 0.00 41217.4 2 6 4.84 x 105 0.00128 0.0204 -2.592 B 2

7 2s — 8p 2C 2p°

(3 uv)

2394.36 0.00 41751.6 2 6 3.55 x 105 9.16 X 10-4 0.0144 -2.737 B 2

8 2s — 9p

2g _ 2p° 2373.55 0.00 42118.3 2 6 2.68 x 105 6.79 X 10-4 0.0106 -2.867 B 2

9 2s — lOp 2g _ 2p° 2358.92 0.00 42379.2 2 6 2.09 x 105 5.22 X 10-4 0.00811 -2.981 B 2

10 2s — lip 2g 2p° 2348.22 0.00 42569.1 2 6 1.65 x 105 4.08 X 10-4 0.00631 -3.088 B 2

11 2s — 12p 2g 2p° 2340.16 0.00 42719.1 2 6 1.34 x 105 3.29 X lO"4 0.00507 -3.182 B 2

12 2s — 13p 2g 2p° 2333.94 0.00 42832.9 2 6 1.09 x 105 2.67 X 10-4 0.00410 -3.273 B 2

13 2p — 3s 2p°_2g

(3)

~ 8126.4 14903.9 27206.1 6 2 3.49 x 107 0.115 18.5 -0.160 B4 1

14 2p — 4s 2p° 2g

(5)

~ 4971.7 14903.9 35012.1 6 2 1.01 x 107 0.0125 1.23 -1.126 B ca

15 2p — 5s 2p° 2g 4273.1 14903.9 38299.5 6 2 4.60 x 106 0.00420 0.355 - 1.599 B ca

16 2p — 6s 2p°_2g 3985.5 14903.9 39987.6 6 2 2.50 x 106 0.00198 0.156 - 1.924 B ca

17 2p — Sd 2p°_2J)

(4)

6103.6 14903.9 31283.1 6 10 7.16 x 107 0.667 80.4 0.602 B + 1

18 2p-4d 2p°_2J)

(6)

4602.9 14903.9 36623.4 6 10 2.30 x 107 0.122 11.1 -0.137 B ca

19 2p — 5d 2p°_2J) 4132.6 14903.9 39094.9 6 10 1.06 x 107 0.0453 3.70 -0.566 B ca

20 3s — 3p 2g 2p° 26877.8 27206.1 30925.4 2 6 3.77 x 106 1.23 217 0.389 B 4 1

21 3s — 4p 2g _ 2p° [10792.1] 27206.1 36469.6 2 6 3.69 x 103 1.93 X lO"4 0.0137 -3.413 B ca

22 3p — 4s 2p° 2g 24464.7 30925.4 35012.1 6 2 7.46 X 10« 0.223 108 0.127 B ca

23 3p — 5s 2p° 2g 13557.8 30925.4 38299.5 6 2 2.76 X 10« 0.0254 6.80 -0.817 B ca

24 3p — 6s 2p° 2g 11032.1 30925.4 39987.6 6 2 1.44 x 10,; 0.00874 1.90 -1.280 B ca

25 Sp-Sd 2p° 2£) [279490] 30925.4 31283.1 6 10 3.81 x 103 0.0743 410 -0.351 B 1

26 3p — 4</ 2p°_2D 17546.1 30925.4 36623.4 6 10 6.85 x 10fi 0.527 183 0.500 B ca

27 3p — 5d 2 p°_2D 12237.7 30925.4 39094.9 6 10 3.41 X 106 0.128 30.9 -0.116 B ca

28 3p — 6d 2p°_2D 10510.6 30925.4 40437.3 6 10 1.94 x 10« 0.0534 11.1 - 0.494 B ca

17
Li I. Allowed Transitions — Continued

No. Transition

Array

Multiplet mA) Ei{cm ') Ek(cm 0 gi gk Aki( sec 4

) fik S(at.u.) log gf Accuracy

Source

29 3c? — 4p

2 D _ 2 p° 19274.8 31283.1 36469.6 10 6 5.52 x 105 0.0184 11.7 -0.734 B ca

30 3c? — 5p

2 D _2p° [12928.9] 31283.1 39015.6 10 6 2.31 x 105 0.00348 1.48 -1.459 B ca

31 3c?

4/

2 J) 2p° 18703.1 31283.1 36630.2 10 14 1.38 x 107 1.01 625 1.006 B ca

32 3c?— 5/

2 D _2F

° 12793.3 31283.1 39104.5 10 14 4.63 x 106 0.159 67.0 0.201 B ca

33 3c/ -6/ 2f) _2jr° [10919.1] 31283.1 [40439.0] 10 14 2.11 x 106 0.0529 19.0 -0.277 B ca

34 4s —4p

25 2p° [68592] 35012.1 36469.6 2 6 7.72 x 105 1.63 737 0.514 B ca

35 4s — 5p 2g _2p° [24971] 35012.1 39015.6 2 6 2.07 x 103 5.81 X lO"4 0.0955 -2.935 B ca

36 4s — 6p

2 S _2po

[18586.8] 35012.1 40390.8 2 6 8.38 x 103 0.00130 0.159 -2.585 B ca

37 4p — 5s 2p°__2g [54633] 36469.6 38299.5 6 2 2.25 x 106 0.335 362 0.303 B ca

38 4p — 6s 2p°_2g [28417] 36469.6 39987.6 6 2 9.22 x 105 0.0372 20.9 -0.651 B ca

39 4p — 4c? 2p° 2J) [650000] 36469.6 36623.4 6 10 1.28 x 103 0.135 1740 -0.091 B ca

40 4p — 5a? 2p°_2J) [38081] 36469.6 39094.9 6 10 1.36 x 106 0.494 372 0.472 B ca

41 4p — 6g? 2p° 2jy [25197] 36469.6 40437.3 6 10 8.19 x 105 0.130 64.6 -0.108 B ca

42 4a? — 5p 2p 2p° [41791] 36623.4 39015.6 10 6 2.86 x 105 0.0450 61.9 -0.347 B ca

43 4c? — 6p 2p_2p° [26536] 36623.4 40390.8 10 6 1.39 X 105 0.00879 7.67 - 1.056 B ca

44 4c/4/

2 D _2F

° [1.47 X 107

] 36623.4 36630.2 10 14 6.90 x 10-2 0.00313 1520 - 1.504 B ca

45 4c? — 5/ 2J3_2F

° [40294] 36623.4 39104.5 10 14 2.58 x 106 0.878 1160 0.944 B ca

46 4c? — 6/ 2J)_2F

° [26201] 36623.4 [40439.0] 10 14 1.30 x 106 0.187 161 0.272 B ca

47 4/- 5c/

2F°_2J) [40562] 36630.2 39094.9 14 10 5.23 x 104 0.00922 17.2 -0.889 B ca

48 4/- 6c/ 2F°- 2 D [26260] 36630.2 40437.3 14 10 2.50 x 104 0.00185 2.24 -1.587 B ca

49 5s — 5p

25 2p° [139610] 38299.5 39015.6 2 6 2.33 x 105 2.05 1880 0.612 B ca

50 5s — 6p 25 2p° [47804] 38299.5 40390.8 2 6 1.72 x 103 0.00177 0.557 -2.451 B ca

51 5p — 6s 2p°_2g [102850] 39015.6 39987.6 6 2 8.48 x 105 0.448 911 0.430 B ca

52 5p — 5c? 2p° 2jy [1261000] 39015.6 39094.9 6 10 4.78 x 102 0.190 4730 0.057 B ca

53 5p — 6c? 2p°_2jy [70319] 39015.6 40437.3 6 10 3.98 x 105 0.491 683 0.470 B ca

54 5c? — 6p 2J) _2p° [77145] 39094.9 40390.8 10 6 1.42 x 105 0.0758 192 -0.121 B ca

55 5c/

5/ 2J)_2F

° [1.04 x 107

] 39094.9 39104.5 10 14 0.696 0.0159 5440 -0.800 B ca

56 5c? — 6/ 2 D- 2F° [74379] 39094.9 [40439.0] 10 14 7.22 X 105 0.838 2050 0.924 B ca

57 5/- 6c/ 2F°_2£) [75010] 39104.5 40437.3 14 10 4.19 X 104 0.0252 87.3 - 0.452 B ca

18
Li II Ground State Is 2 'So

Ionization Potential 75.619 eV = 610079 cm'1

Allowed Transitions

List of tabulated lines:

Wavelength [ A] No. Wavelength [A] No. Wavelength [A] No.

178.015 2 1653.2 31 3306.5 17

199.282 1 1681.8 10 3684.1 39

861.36 30 1755.5 6 4156.3 14

944.72 29 2605.1 47 4325.7 45

972.30 34 2657.3 43 4637.8 23

1018.0 37 2674.43 40 4671.8 50

1031.9 33 2728.4 52 4678.4 24

1044.3 9 2730.7 26 4787.5 19

1093.2 5 2767.1 21 4840.8 48

1102.6 12 2790.5 18 4881.3 41

1109.0 8 2952.5 15 5038.7 16

1132.0 36 3029.1 46 5484.8 27

1166.7 32 3155.4 42 9562.2 3

1198.3 28 3195.8 51 21091 38

1237.4 11 3199.4 25 33661 13

1253.5 7 3235.7 49 57324 44

1420.7 4 3250.1 20 211360 22

1493.2 35

The values are selected from Weiss’ calculations [1] or, when not available, from the Coulomb

approximation. The transition probabilities determined by Weiss are the result of extensive nonrelativistic variational calculations. Values have been determined in both the dipole length and

dipole velocity approximations and agree to within 1%, except for the 3p

1 P° — 3d'D transition

where agreement is not as good. The average of the two approximations is adopted [1].

Reference

[1] Weiss, A. W., private communication (1964).

19
Li II. Allowed Transitions

No. Transition

Array

Multiplet X(A) Ei( cm ') ^•(cm ') gi gk Aki( sec

-1

) fk S(at.u.) log gf Accuracy

Source

1 Is2 — ls2p 1C ipo

(1 uv)

199.282 0 501816 1 3 256 0.457 0.300 - 0.340 A 1

2 Is2 — ls3p 1 C ipo

(2 uv)

178.015 0 561749 1 3 77.9 0.111 0.0651 -0.955 A 1

3 ls2s — ls2p l S _ip° [9562.2] 491361 501816 1 3 0.0518 0.213 6.71 -0.672 A 1

4 ls2s — ls3p l S -ip° [1420.7] 491361 561749 1 3 2.82 0.256 1.20 -0.592 A 1

5 ls2s — ls4p l S -ip° [1093.2] 491361 582832 1 3 1.32 0.0712 0.256 -1.147 B ca

6 ls2p — ls3s ip°_lS [1755.5] 501816 558779 3 1 2.04 0.0314 0.544 - 1.026 B ca

7 ls2p — ls4s ip°_lS [1253.5] 501816 581590 3 1 0.776 0.00609 0.0754 -1.738 B ca

8 ls2p — ls5s 1 P°_ 1S [1109.0] 501816 591984 3 1 0.382 0.00235 0.0257 -2.152 B ca

9 ls2p — ls6s 1 P°_1S [1044.3] 501816 597574 3 1 0.214 0.00117 0.0120 -2.456 B ca

10 ls2p — ls3d 1 P°- 1 D [1681.8] 501816 561276 3 5 10.1 0.714 11.9 0.331 A 1

11 ls2p — ls4c? 1 P°— >D [1237.4] 501816 582631 3 5 3.10 0.119 1.45 - 0.448 B ca

12 Is2p — ls5rf i P

°_i D [1102.6] 501816 592508 3 5 1.37 0.0415 0.452 -0.905 B ca

13 1 535 — ls3p i S -ip° [33661] 558779 561749 1 3 0.00710 0.362 40.1 - 0.442 B ca

14 ls3s — ls4p i S -ip°

(3)

4156.3 558779 582832 1 3 0.343 0.267 3.65 -0.574 B ca

15 153s — ls5p i S -ip° [2952.5] 558779 592639 1 3 0.202 0.0791 0.769 -1.102 B ca

16 ls3p — ls4s T0 — *S [5038.7] 561749 581590 3 1 0.541 0.0687 3.42 -0.686 B ca

17 ls3p — 1 s55 i P°_i S [3306.5] 561749 591984 3 1 0.252 0.0138 0.449 - 1.384 B ca

18 ls3p — 1565 i P°-i S [2790.5] 561749 597574 3 1 0.139 0.00542 0.149 -1.789 B ca

19 ls3p — ls4d i P°_i D [4787.5] 561749 582631 3 5 1.14 0.654 30.9 0.293 B ca

20 l53p — 1 s5g? 1 P°-'D [3250.1] 561749 592508 3 5 0.528 0.139 4.48 -0.379 B ca

21 Is3p — ls6d 1 P°— ‘D [2767.1] 561749 597877 3 5 0.289 0.0552 1.51 -0.781 B ca

22 ls3d — ls3p i D -ip° [211360] 561276 561749 5 3 3.98 X 10- 5 0.0160 55.7 -1.097 B 1

23 ls3d— ls4p i D -ip° [4637.8] 561276 582832 5 3 0.0471 0.00911 0.695 • -1.342 B ca

24 ls3d— ls4f 1 D —

0 [4678.4] 561276 582645 5 7 2.21 1.02 78.2 0.706 B ca

25 ls3d— ls5f !D— !F° [3199.4] 561276 592523 5 7 0.736 0.158 8.33 -0.102 B ca

26 ls3d— ls6f !D-1F° [2730.7] 561276 597886 5 7 0.338 0.0528 2.38 -0.578 B ca

27 ls2s — ls2p 3g _ 3p°

(1)

5484.8 476046 494273 3 9 0.228 0.308 16.7 -0.034 A 1

28 ls2s — ls3p 3§ 3p° [1198.3] 476046 559501 3 9 2.88 0.186 2.20 -0.253 A 1

29 ls2s — ls4p 3§ 3p° [944.72] 476046 581897 3 9 1.39 0.0558 0.521 -0.776 B ca

30 1525 — ls5p 3§ _ 3p° [861.36] 476046 592141 3 9 0.722 0.0241 0.205 -1.141 B ca

31 ls2p — ls3s 3p°_ 3g [1653.2] 494273 554761 9 3 2.85 0.0390 1.91 -0.455 B ca

32 ls2p — ls4s 3p° _ 3g [1166.7] 494273 579982 9 3 1.02 0.00697 0.241 -1.202 B ca

20
Li II. Allowed Transitions — Continued

No. Transition

Array

Multiplet X(A) Ei(cm ') £*(cnr') gi gk Akt{sec

-1

) fk S(at.u.) log gf Accuracy

Source

33 \s2p — ls5s 3p° _'3§ [1031.9] 494273 591184 9 3 0.490 0.00261 0.0797 -1.630 B ca

34 ls2p — ls6s 3p°_ 3g [972.30] 494273 597122 9 3 0.270 0.00128 0.0368 -1.939 B ca

35 ls2p — ls3c/ 3p° 3J) [1493.2] 494273 561245 9 15 11.2 0.625 27.7 0.750 A 1

36 l$2p — ls4d 3p°_3£) [1132.0] 494273 582612 9 15 3.80 0.122 4.08 0.039 B ca

37 ls2p — ls5d 3p°_3J) [1018.0] 494273 592505 9 15 1.78 0.0461 1.39 -0.382 B ca

38 ls3s — ls3p 3g _ 3p° [21091] 554761 559501 3 9 0.0254 0.509 106 0.184 B ca

39 ls3s — ls4p 3§_ 3p°

(2)

3684.1 554761 581897 3 9 0.309 0.189 6.86 -0.248 B ca

40 ls3s — ls5p 3g _ 3p°

(4 UV)

2674.43 554761 592141 3 9 0.192 0.0617 1.63 -0.733 B ca

41 ls3p — ls4s 3p° 3§

(4)

" 4881.3 559501 579982 9 3 0.714 0.0850 12.3 -0.116 B ca

42 ls3p — ls5s 3p°_3§ [3155.4] 559501 591184 9 3 0.318 0.0158 1.48 -0.846 B ca

43 ls3p — ls6s 3p°_35 [2657.3] 559501 597122 9 3 0.172 0.00606 0.477 -1.263 B ca

44 ls3p — IsSd 3p°_3J) [57324] 559501 561245 9 15 0.00110 0.0904 154 -0.090 A 1

45 ls3p — ls4tf 3p°_3J)

(5)

4325.7 559501 582612 9 15 1.09 0.508 65.1 0.660 B ca

46 ls3p — ls5d 3p° 3 J) [3029.1] 559501 592505 9 15 0.549 0.126 11.3 0.054 B ca

47 ls3p — 1560? 3p° _ 3J) [2605.1] 559501 597876 9 15 0.312 0.0530 4.09 -0.322 B ca

48 Is3rf— ls4p 3J) _ 3p° [4840.8] 561245 581897 15 9 0.0941 0.0198 4.74 -0.527 B ca

49 l53rf— ls5p 3J) _ 3p° [3235.7] 561245 592141 15 9 0.0391 0.00369 0.589 -1.257 B ca

50 Is3rf-ls4/ 3J) _ 3p° [4671.8] 561245 582644 15 21 2.21 1.01 234 1.182 B ca

51 ls3rf— ls5/ 3J) _ 3p° [3195.8] 561245 592527 15 21 0.739 0.158 25.0 0.376 B ca

52 ls3d- ls6f 3J)_3p° [2728.4] 561245 597886 15 21 0.339 0.0530 7.14 -0.100 B ca

21
BERYLLIUM

Bel

Ground State ls 2 2s 2 ‘So

Ionization Potential 9.320 eV = 75192.29 cm 1

Allowed Transitions

The results taken from Weiss’ self-consistent field calculations [1] are estimated to be accurate to 10-25 percent because of the good agreement between the dipole length and velocity approximations and because of the inclusion of configuration interaction. The average of the two

approximations is adopted [1]. For the resonance fine the adopted value is within 10 percent

of the result of calculations of Bolotin and Yutsis [2], who include configuration interaction in a more limited way. The Coulomb approximation, employed for the other transitions, is not con- sidered to be very reliable here since the lower state has the same principal quantum number as the ground state.

References

[1] Weiss, A. W., private communication (1964). [2] Bolotin, A. B., and Yutsis, A. P., Zhur. Eksptl. i Teoret. Fiz. 24, 537—543 (1953) (Translated in “Optical Transition Probabilities,” Office of Technical Services, U.S. Department of Commerce, Washington, D.C.). Be I. Allowed Transitions

No. Transition

Array

Multiplet x(A) Ei(c m ) £t(cm ') gi gk Tw(108 sec- 1 ) fk S(at.u.) log gf Accuracy

Source

1 2s2 -

2s2p(2 S)2p

1C _ ip°

(1 uv)

2348.61 0.0 42565.3 1 3 5.47 1.36 10.5 0.133 C + 1

2 2s2p — 2p2 3p° 3p

(2 uv)

2650.6 21980.1 59695.8 9 9 4.42 0.466 36.6 0.623 C + 1

3 ipo_lS [3455.2] 42565.3 71498.9 3 1 2.21 0.132 4.50 -0.403 c 1

4 2s2p —

2s( 2 S)3s

3p° _ 3g

(1)

3321.2 21980.1 52080.9 9 3 0.62 0.034 3.4 -0.51 D ca

5 ip°_l S

(2) 8254.10 42565.3 54677.2 3 1 0.38 0.13 11 -0.41 D ca

6 2s2p —

2s(2 S)3d

3p°_3J)

(3 uv)

2494.6 21980.1 62053.6 9 15 1.0 0.16 12 0.15 D ca

7 tp°_iD

(3)

4572.67 42565.3 64428.2 3 5 0.37 0.19 8.6 -0.24 D ca

8 2s2p —

2s(2 S)4s

i P

°_iS

(4)

4407.91 42565.3 65245.4 3 1 0.090 0.0087 0.38 -1.58 D ca

9 2s2p —

2s(2 S)4d

ip° — ‘D

(5) 3813.40 42565.3 68781.2 3 5 0.23 0.084 3.2 -0.60 D ca

10 2s2p —

2s( 2 S)5s

i P°_iS

(6) 3736.28 42565.3 69322.3 3 1 0.038 0.0027 0.099 -2.10 D ca

11 2s2p —

2s(2 S)5d

ip°_iD

(7) 3515.54 42565.3 71002.3 3 5 0.13 0.041 1.4 -0.91 D ca

22
Forbidden Transitions

Naqvi’s calculations [1] are the only available source. The results for the 3P° — 3P° transitions are essentially independent of the choice of the interaction parameters. For the :i p° — ] P°

transitions, Naqvi uses empirical term intervals, i.e., the effects of configuration interaction should

be partially included.

Reference

[1] Naqvi, A. M., Thesis Harvard (1951).

Be; I. Forbidden Transitions

No. Transition Array Multiplet mA) £i(cm 0 Ek{ cm ') g> gk

Type of

Transition Akisec-1 ) S(at.u.) Accuracy

Source

1 2s2p-2s(2S)2p 3p° 3p°

[14.7 x 107

] 21978.25 21979.93 1 3 m 5.66 x 10- 12 2.00 B 1 [42.6 X 106

] 21979.93 21981.28 3 5 m 1.74 x HP10 2.50 B 1

2 3p° ip°

[4856.1] 21978.3 42565.3 1 3 rn 9.6 x 10- 7 1.22 X 10-8 C 1 [4856.5] 21979.9 42565.3 3 3 m 0.0092 1.17 X 10~4 C 1 [4856.8] 21981.3 42565.3 5 3 m 1.19 X 10-6 1.52 X 10-8 C 1

Ground State

Bell

ls2 2s

2 S 1/2

Ionization Potential 18.206 eV= 146881.7 cm" 1

Allowed Transitions

The values taken from Weiss’ calculations [1] are estimated to be accurate to within 10 percent because of the very close agreement between his dipole length and dipole velocity approximations, except for the case of the 3p — Sd transition where somewhat larger divergencies occur. The values calculated with the dipole length approximation are adopted.

Reference

[1] Weiss, A. W„ Astrophys. J. 138, 1262-1276 (1963).

23
Be II. Allowed Transitions

No. Transition

Array

Multiplet X(A) Ei( cm ') Ek( cm ') gi gk Aki( 10s sec ') fik S(at.u.) log gf Accuracy

Source

1 2s — 2p

2 § _ 2 p°

( 1 )

3130.6 0.0 31933.2 2 6 1.15 0.505 10.4 0.004 A 1

2 2s — 3p

2 C 2 p°

(1 uv)

1036.27 0.0 96497.6 2 6 1.66 0.0804 0.549 -0.794 B .1

3 2p — 3s 2 p° 2 C

(Jut)

1776.2 31933.2 88231.2 6 2 4.22 0.0665 2.33 -0.399 B + 1

4 2p — 3d 2 p°_ 2 J) (4 uv)

1512.4 31933.2 98053.2 6 10 11.4 0.652 19.5 0.592 B + 1

5 3s — 3p 25 _ 2 p° 12094 88231.2 96497.6 2 6 0.128 0.839 66.8 0.225 B 1

6 3s — 4p 25 _ 2 p°

( 2)

3274.64 88231.2 118760 2 6 0.143 0.0691 1.49 -0.860 B ca

7 3p — 45 2 p°_2§

(3)

5270.7 96497.6 115465 6 2 0.969 0.134 14.0 -0.093 B ca

8 3p — 5s 2 p°_2g

(5) 3247.7 96497.6 127336 6 2 0.410 0.0216 1.38 - 0.888 B ca

9 3p — 3d 2 p° 2jQ 64266 96497.6 98053.2 6 10 7.83 x 10- 4 0.0808 103 -0.314 B 1

10 3p — \d 2p°_2J)

(4)

4360.9 96497.6 119422 6 10 1.09 0.519 44.7 0.493 B ca

11 3d — 4/ 2 J) 2p°

( 6)

4673.46 98053.2 119445 10 14 2.21 1.01 156 1.006 B ca

Ground State

Belli

Is 2 ‘So

Ionization Potential

Allowed Transitions

153.850 eV = 1241255 cm-1

The results of extensive non-relativistic variational calculations by Weiss [1] are chosen.

Values have been calculated in both the dipole length and dipole velocity approximations and agree

to within 1 percent, except for the 3p ‘P° — 3d‘D transition where agreement is not as good. The

average of the two approximations is adopted [1].

Reference

[1] Weiss, A. W., private communication (1964).

24
Belli. Allowed Transitions

No. Transition

Array

Multiplet mA) /^(cm ’) Ek(cm ') gi gk Aki(l0H sec ') fik S(at.u.) l'»g gj Accuracy

Source

1 ls2 -ls2p t S

-ip° [100.25] 0 997466 1 3 1220 0.552 0.182 -0.258 A 1

2 Is2 — ls3p iS_!p° [88.314] 0 1132323 1 3 362 0.127 0.0369 -0.896 A 1

3 ls2s — ls2p 'S — ‘P

0 [6141.2] 981187 997466 1 3 0.0877 0.149 3.02 -0.827 A 1

4 ls2s — ls3p i S _ip° [398.19] 981187 1132323 1 3 42.8 0.305 0.400 -0.516 A 1

5 ls2p — ls3d ip°_iD [746.70] 997466 [1131389] 3 5 51.0 0.711 5.24 0.329 A 1

6 ls3d — ls3p ! D — 1 P° [107000]? [1131389] 1132323 5 3 1.32 X 10-4 0.0136 24.0 -1.168 C + 1

7 ls2s — ls2p 3g _ 3p°

[ 3721.8 ] [956496] [ 983357

]

3 9 0.342 0.213 7.83 -0.195 A 1

8 ls2s — ls3p 3g _3p° [583.01] [956496] [1128020] 3 9 16.5 0.252 1.45 -0.122 A 1

9 ls2p — ls3d 3p°_3J) [ 675.66 ] [ 983357] [1131360] 9 15 56.1 0.640 12.8 0.760 A 1

10 ls3p — ls3d 3p° 3£) [29930]? [1128020] [1131360] 9 15 0.00318 0.0712 63.1 -0.193 A 1

BORON

BI

Ground State ls2 2s2 2p 2 P°i/2

Ionization Potential 8.296 eV = 66930 cm- 1

Allowed Transitions

The values for the 2s2 2p — 2s2p2

( 2 P° — 2 D, 2S, 2 P) transitions are taken from the calculations

of Bolotin and Yutsis [1], who employ analytical one-electron wave functions. Self-consistent field

calculations of Tsiunaitis and Yutsis [2] have been adopted for the 2p

2 P° — 3s 2 S transition. Since

both determinations take into account the important effects of configuration interaction only in a limited way, large uncertainties are expected.

References

[1] Bolotin, A. B., and Yutsis, A. P., Zhur. Eksptl. i Teoret. Fiz. 24, 537-543 (1953) (Translated in “Optical Transition

Probabilities,” Office of Technical Services, U.S. Department of Commerce, Washington, D.C.).

[2] Tsiunaitis, G. K., and Yutsis, A. P., Soviet Phys. — JETP 1 , 358-363 (1955).

25
Bl. Allowed Transitions

No. Transition

Array

Multiplet mA) E,( cm ') Ek( cm ') gi Ta-,(108 sec ') fik S(at.u.) log gf Accuracy

Source

1 2s22p—2s2p2 2p° _ 2J) 2089.3 10 47857 6 10 2.2 0.24 9.7 0.15 E 1

(2 uv)

2089.57 15 47857 4 6 2.1 0.21 5.8 -0.07 E Is 2088.84 0 47857 2 4 1.8 0.23 3.2 -0.33 E Is [2089.6] 15 47857 4 4 0.36 0.024 0.65 -1.02 E Is

2 2p° _ 2g 1573.5 10 63561 6 2 13 0.16 5.1 -0.01 E 1

[1573.7] 15 63561 4 2 8.8 0.16 3.4 -0.18 E Is [1573.3] 0 63561 2 2 4.4 0.16 1.7 -0.48 E Is

3 2p° — 2p 1378.7 10 72543 6 6 23 0.66 18 0.60 E 1

[1378.7] 15 72547 4 4 19 0.55 10 0.34 E Is [1378.6] 0 72535 2 2 15 0.44 4.0 -0.05 E Is [1378.9] 15 72535 4 2 7.7 0.11 2.0 -0.36 E Is [1378.4] 0 72547 2 4 3.9 0.22 2.0 -0.36 E Is

4 2p-(1 S)3s 2p° 2g 2497.4 10 40040 6 2 3.6 0.11 5.5 -0.17 D 2

(1 uv)

2497.72 15 40040 4 2 2.4 0.11 3.7 -0.35 D Is 2496.77 0 40040 2 2 1.2 0.11 1.8 -0.66 D Is

5 3s-pS)3p 2g 2p° 11661 40040 48613 2 6 0.174 1.07 82 0.330 C ca

11660 40040 48613 2 4 0.174 0.71 54 0.152 C Is 11662 40040 48612 2 2 0.174 0.355 27.2 -0.149 C Is

6 3p-(1 S)|p 2p° _ 2

p

16243 48613 54768 6 10 0.138 0.90 291 0.73 c ca

16245 48613 54768 4 6 0.138 0.82 175 0.51 c Is 16240 48612 54768 2 4 0.115 0.91 97 0.259 c Is 16245 48613 54768 4 4 0.0230 0.091 19.4 -0.440 c Is

7 3p — (

j S)45 2p° _ 2g 15628 48613 55010 6 2 0.154 0.188 58 0.052 c ca

15629 48613 55010 4 2 0.103 0.188 38.8 -0.123 c Is 15625 48612 55010 2 2 0.051 0.188 19.4 -0.424 c Is

8 3p — OS^s 2p° — 2g 8668.1 48613 60146 6 2 0.0486 0.0182 3.12 -0.96 c ca

8668.6 48613 60146 4 2 0.0324 0.0182 2.08 -1.137 c Is 8667.2 48612 60146 2 2 0.0162 0.0182 1.04 -1.438 c Is

Forbidden Transitions

Naqvi’s calculation [1] of the one possible transition in the ground state configuration 2p is the

only available source. The line strength should be quite accurate, since it does not sensitively

depend on the choice of the interaction parameters.

Reference

[1] Naqvi, A. M., Thesis Harvard (1951).

Bl. Forbidden Transitions

No. Transition Array Multiplet mA)

Type of

£i(cm-1

) Edcm-1

) gi gk

. Transition Aki( sec

-1

) S(at.u.)

Accuracy Source

1 2p — 2p to "13 O 1 to *0 O [66.0 x 105

] 0 15.15 2 4 m 3.15 X 10-8 1.33 C 1
BlI

Ground State ls22s2 ‘So

Ionization Potential 25.149 eV = 202895 cnr 1

Allowed Transitions

Except for the 2s3d 3 D — 2s4/3F° transition, for which a Coulomb approximation is employed,

the values are taken from Weiss’ self-consistent field calculations [1]. The length and velocity

approximations disagree noticeably — for the 2s2p >P° — 2p2 'D transition by as much as a factor

of three. The average of the two approximations is adopted [1] . Accuracies within 50 percent are indicated by the following comparison: Weiss [1] has undertaken refined calculations, including

configuration interaction, for the same transitions in Bel — the first member of this isoelectronic

sequence — in addition to calculations of the type done for this ion. In all cases the agreement

with the average of the dipole length and velocity approximations is close.

Reference

[1] Weiss, A. W., private communication (1964).

BlI. Allowed Transitions

No. Transition

Array

Multiplet k(A) E,( cm ') Ek(cm ') gi gk /Gi(10H sec ') fk S(at.u.) log gf Accuracy

Source

1 2s2 - c

jn 1 o 1362.46 0.0 73396.7 1 3 13 1.1 4.9 0.04 D 1 2s(2 S)2p (1 uv)

2 2s2p — 2p2 3p° 3p [1624.0] [37350.9] [98925.5] 9 9 8.4 0.33 16 0.48 D 1 (3 uv)

1623.99 [37356.4] [98932.7] 5 5 6.3 0.25 6.7 0.10 D Is 1623.99 [37340.0] [98918.7] 3 3 2.0 0.081 1.3 -0.61 D Is 1624.37 [37356.4] [98918.7] 5 3 3.5 0.082 2.2 -0.39 D Is [1624.2] [37340.0] [98910.3] 3 1 8.5 0.11 1.8 -0.47 D Is 1623.57 [37340.0] [98932.7] 3 5 2.1 0.14 2.2 -0.39 D Is [1623.8] [37333.6] [98918.7] 1 3 2.8 0.34 1.8 -0.47 D Is

3

"C o 1 6 3451.41 73396.7 102362 3 5 2.2 0.65 22 0.29 E 1 (i)

4 ip°_i S [1842.8] 73396.7 127662 3 1 6.8 0.12 2.1 -0.46 D 1

5 2s3d— 3J3 _ 3p° 4121.95 [150649] [174903] 15 21 2.55 0.91 185 1.135 C ca

2s( 2 S)4f (2)

Forbidden Transitions

Naqvi’s calculations [1] are the only available source. The results for the 3 P° —3 P° transitions are essentially independent of the choice of the interaction parameters. For the 3 P° — ‘P° transitions, Naqvi uses empirical term intervals, i.e., the effects of configuration interaction should

be partially included.

Reference

[1] Naqvi, A. M., Thesis Harvard (1951).

27
BlI. Forbidden Transitions

No. Transition Array Multiplet x(A) £i(cm 9 £t(cm 9 gi gk

Type of

Transition

Tfci(sec _ 9 S(at.u.)

Accuracy Source

1 2s2p-2s(2S)2p 3p° 3p°

[15.6 x 106

] [37333.6] [37340.0] 1 3 m 4.74 x 10-9 2.00 C 1 [61.0 x 105

] [37340.0] [37356.4] 3 5 m 5.94 X 10~8 2.50 B 1

2 3p° ip°

[2772.1] [37333.6] 73396.7 1 3 m 8.5 X 10-5 2.02 X 10- 7 C 1 [2772.5] [37340.0] 73396.7 3 3 m 0.201 4.77 x 10-4 C 1 [2773.9] [37356.4] 73396.7 5 3 m 1.07 x 10~4 2.53 x 10- 7 C 1

Bill

Ground State ls2 2s 2 Si /2

Ionization Potential 37.920 eV = 305931.1 cm-1

Allowed Transitions

The values taken from Weiss’ calculations [1] are estimated to be accurate to within 10 percent

because of the very close agreement between his dipole length and dipole velocity approximations,

except for the case of the 3p — 3d transition where somewhat larger divergencies occur. The values

calculated with the dipole length approximation are adopted.

Reference

[1] Weiss, A. W., Astrophys. J. 138, 1262-1276 (1963).

Bill. Allowed Transitions

No. Transition

Array

Multiplet X(A) £i(cm 9 £V(cm 9 g> gk Aki( 1

9 sec 9 fik Sfat.u.) log gf Accuracy

Source

1 2s — 2p 2 § 2 p° 2066.3 0.0 48381.2 2 6 1.91 0.366 4.98 -0.136 A 1

2 2s — ‘ip 25 _ 2 p° 518.25 0.0 192956 2 6 12.5 0.151 0.515 -0.520 B 1

3 2p — is 2 p°_ 2 g 758.60 48381.2 180202 6 2 16.3 0.0470 0.704 -0.550 B + 1

4 2p — id 2p° 2 J) 677.09 48381.2 196071 6 10 56.8 0.651 8.71 0.592 B + 1

5 is — ip 2 § _ 2 p° 7838.5 180202 192956 2 6 0.222 0.614 31.7 0.089 B 1

6 ip — id 2 p°_ 2 £) 32094 192956 196071 6 10 0.00279 0.0719 45.6 -0.365 B 1

7 4p — 5d 2 p°_ 2 J) (1) 4243.60 242832 266390 6 10 1.11 0.501 42.0 0.478 B ca

8 4d — 5/ 2jy 2p°

(2) 4487.46 244139 266417 10 14 2.10 0.887 131 0.948 B ca

28
Ground State

BlV

Is2 'So

Ionization Potential 259.298 eV = 2091960 cm"'

Allowed Transitions

The results of extensive non-relativistic variational calculations by Weiss [1] are chosen.

Values have been calculated in both the dipole length and dipole velocity approximations and

agree to within 1 percent, except for the 3p'P° — 3d'D transition, where agreement is not as good.

The average of the two approximations is adopted [1].

Reference

[1] Weiss, A. W., private communication (1964).

B IV. Allowed Transitions

No. Transition

Array

Multiplet \(A) £,(cm ') Ek( cm ') gi gk /4a;(10h sec ') fik S(at.u.) log gf Accuracy

Source

1 Is2 — ls2p i S -ip° [60.313] 0 1658020 1 3 3720 0.609 0.121 -0.215 A 1

2 Is2 — ls3p i S -ip° [52.682] 0 1898180 1 3 1080 0.135 0.0234 -0.870 A 1

3 ls2s — ls2p 1 S- 1 P° [4499.4] [1635801] 1658020 1 3 0.125 0.114 1.69 -0.943 A 1

4 ls2s — ls3p •S-'P0 [381.13] [1635801] 1898180 1 3 51.0 0.333 0.418 -0.478 A 1

5 ls2p — ls3d ip°_i D [418.83] 1658020 [1896780] 3 5 162 0.709 2.93 0.328 A 1

6 ls3d— ls3p i D -ip° [71410]? [1896780] 1898180 5 3 2.62 X 10-4 0.0120 14.1 -1.222 C + 1

7 ls2s — ls2p 3g 3p° 2823.4 1601505 1636913 3 9 0.455 0.163 4.55 -0.311 A 1

8 ls2s — ls3p 3§ 3p° [344.19] 1601505 [1892046] 3 9 54.6 0.291 0.989 -0.059 A 1

9 ls2p — ls3d 3p°_3J) [385.05] 1636913 [1896618] 9 15 175 0.650 7.42 0.767 A 1

10 ls3p — ls3d 3p°_3J) [21870]? [1892046] [1896618] 9 15 0.00484 0.0578 37.5 -0.284 A 1

29
CARBON

Cl

Ground State ls2 2s22p2 3Po

Ionization Potential 11.264 eV = 90878.3 cm-1

Allowed Transitions

List of tabulated lines:

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

945.193 4 1657.00 5 9078.32 29

945.336 4 1657.37 5 9088.57 29

945.566 4 1657.89 5 9094.89 29

1260.75 13 1658.11 5 9111.85 29

1260.9 13 1751.9 20 9603.09 28

1260.96 13 1764 24 9620.86 28

1261.12 13 1765 19 9658.49 28

1261.4 13 1930.93 6 10124 42

1261.56 13 2478.56 8 10548.0 48

1274.13 12 2582.90 7 10683.1 27

1277.15 11 2902.1 26 10685.3 27

1277.27 11 2903.1 26 10691.2 27

1277.4 11 2904.9 26 10707.3 27

1277.62 11 2964.85 1 10729.5 27

1277.77 11 2967.22 1 10754.0 27

1277.8 11 4268.99 39 11330.3 30

1279.25 10 4371.33 38 11330.4 41

1279.90 21 4762.41 34 11602.9 44

1280.15 21 4766.62 34 11609.9 44

1280.34 21 4770.00 34 11619.0 44

1280.65 21 4771.72 34 11631.6 44

1280.89 21 4775.87 34 11638.6 44

1328.82 3 4812.84 33 11653 45

1329.10 3 4817.33 33 11656.0 45

1329.58 3 4826.73 33 11667.1 45

1364.14 25 4932.00 37 11667.1 44

1431.60 9 5039.05 32 11677.0 44

1432.12 9 5041.66 32 11747.5 43

1432.54 9 5044.0 32 11754.0 43

1459.05 18 5049.6 32 11778.0 43

1463.33 17 5052.12 36 11801.8 43

1467.45 23 5054.5 32 11820 49

1469 16 5380.24 35 11824 43

1470.20 15 5793.51 40 11849.3 49

1472 22 5794.46 40 11863.0 49

1481.77 14 5794.8 40 11880.4 49

1560.31 2 5800.33 40 11894.9 49

1560.70 2 5801.17 40 12551.0 46

1561.29 2 5805.76 40 12565.0 46

1561.3 2 6587.75 50 12582.3 46

1561.40 2 8335.19 31 12602.6 46

1656.26 5 9061.48 29 12614.8 46

1656.92 5 9062.53 29 16890 47
The largest part of the data is from emission measurements with stabilized arc sources [2, 5,

6, 7]. In the vacuum ultraviolet, recent measurements by Boldt [2] are given preference over

theoretical determinations by Weiss [4] and Bolotin et al. [3], with which the experiment is in marked

disagreement (factors of 2—3). At present there are strong indications that the principal source of

the disagreement is the relatively crude theoretical treatment of configuration interaction, which is very critical for these transitions. Thus, the theoretical results [3, 4] have been employed only for a few strong transitions for which no experimental data are available. But it should be noted that

some experimental values may be quite unreliable due to uncertainties in the identification of the

lines.

For the higher excited transitions in the visible several experimental investigations are available. Richter’s work with a carbon dioxide plasma [6] is regarded as the most advanced one and

his results are principally used. However, from an analysis of his method it appears very likely

that the absolute scale is shifted due to a demixing effect in the arc source (see general introduction).

This is further substantiated by a disagreement with the Coulomb approximation by an almost

constant factor. Since the Coulomb approximation has given very reliable results for 3p — 3d

transitions of atoms of analogous structure, Richter’s absolute values are renormalized to give the

best agreement with the Coulomb approximation for these latter type transitions. The normalization factor of 1.30 is then applied to all of his other transitions. The work of Maecker [5] and

Foster [7], which is used for a few transitions not covered by Richter, is expected to be also subject

to demixing effects of the same order of magnitude or higher, since these authors have used more

complicated gas mixtures. Thus, their results have been also fitted to the scale established by the

Coulomb approximation. Normalization factors of 2.50 and 1.40 are used, respectively.

Finally, two intercombination lines are taken from a recent paper by Garstang [1], who performed intermediate coupling calculations and normalized the values to a scale obtained from the

Coulomb approximation.

References

[1] Garstang, R. H., The Observatory 82 , 50-51 (1962).

[2] Boldt, G., Z. Naturforsch. 18a, 1107-1116 (1963).

[3] Bolotin, A. B., Levinson, I. B., and Levin, L. I., Soviet Phys.— JETP 2, 391—395 (1956).

[4] Weiss, A. W., private communication (1964).

[5] Maecker, H., Z. Physik 135, 13-22 (1953).

[6] Richter, J., Z. Physik 151, 114-123 (1958).

[7] Foster, E. W., Proc. Phys. Soc. London A 80, 882-893 (1962).

C I. Allowed Transitions

No. Transition

Array

Multiplet mA) jj E7 Ek( cm ') gi gk /4*j(108 sec ') fk S(at.u.) log gf AccuracySource

1 2s22p2 — 3 P- 5S°

2s2p3 (1 uv)

2967.22 44 33735 5 5 2.4 X 10- 7 3.2 x 10-8 1.6 X 10-6 -6.80 E 1 2964.85 16 33735 3 5 8.2 x 10~8 1.8 x 10-8 5.3 X 10" 7 -7.27 E 1

2

W Tl 1 CO O

0 1561.0 30 64091 9 15 1.5 0.091 4.2 -0.09 D 2

(3 uv)

1561.40 44 64089 5 7 1.5 0.078 2.0 -0.41 D Is 1560.70 16 64093 3 5 1.1 0.065 1.0 -0.71 D Is 1560.31 0 64092 1 3 0.84 0.091 0.47 -1.04 D Is 1561.29 44 64093 5 5 0.37 0.014 0.35 -1.67 D Is 1560.70 16 64092 3 3 0.62 0.023 0.35 -1.67 D Is [1561.3] 44 64092 5 3 0.041 8.9 X 10-“ 0.023 -2.35 D Is

31

766-655 0-66—4
Cil. Allowed Transitions — Continued

No. Transition

Array

Multiplet X(A) Ei( cm x

) Ek( cm x ) gi gk /lfri(108 sec !) fik S(at.u.) log gf Accuracy

Source

3 3p 3p° 1329.3 30 75256 9 9 1.4 0.038 1.5 -0.47 D 2

(4 uv)

1329.58 44 75256 5 5 1.1 0.029 0.63 -0.84 D Is 1329.10 16 75256 3 3 0.37 0.0099 0.13 -1.53 D Is 1329.58 44 75256 5 3 0.60 0.0096 0.21 -1.32 D Is 1329.10 16 75256 3 1 1.5 0.013 0.17 -1.41 D Is 1329.10 16 75256 3 5 0.36 0.016 0.21 -1.32 D Is 1328.82 0 75256 1 3 0.49 0.039 0.17 -1.41 D Is

4 3p _3§° 945.44 30 105801 9 3 61 0.27 7.6 0.39 E 3

(31 uv)

945.566 44 105801 5 3 34 0.27 4.2 0.13 E Is 945.336 16 105801 3 3 20 0.27 2.5 -0.10 E Is 945.193 0 105801 1 3 6.7 0.27 0.84 -0.57 E Is

5 2

p

2 - 3p 3p° 1657.2 30 60374 9 9 4.1 0.17 8.3 0.18 D 2

2p(2 P°)3s (2 uv)

1657.00 44 60394 5 5 3.1 0.13 3.5 -0.19 D Is 1657.37 16 60353 3 3 1.0 0.042 0.69 -0.90 D Is 1658.11 44 60353 5 3 1.8 0.044 1.2 -0.66 D Is 1657.89 16 60334 3 1 4.1 0.056 0.92 -0.77 D Is 1656.26 16 60394 3 5 1.1 0.073 1.2 -0.66 D Is 1656.92 0 60353 1 3 1.4 0.17 0.92 -0.77 D Is

6 iD-ip° 1930.93 10194 61982 5 3 2.4 0.082 2.6 -0.39 E 4

(33 uv)

7

1 S- 3P°

(60 uv)

2582.90 21648 60353 1 3 8.6 x 10-5 2.6 X 10-5 2.2 X 10-4 -4.59 D 5n

8

i S _ip° 2478.56 21648 61982 1 3 0.34 0.094 0.77 -1.03 E 4

(61 uv)

9 2s2p3 — 5 S°- 5 P 1431.9 33735 103570 5 15 1.4 0.13 3.1 -0.19 D 2

2s2p2

( 4 P)3s (65 uv)

1431.60 33735 103587 5 7 1.5 0.064 1.5 -0.49 D 2

1432.12 33735 103563 5 5 1.4 0.043 1.0 -0.67 D 2 1432.54 33735 103542 5 3 1.3 0.024 0.57 -0.92 D 2

10 2p2 — 3p 3p°

2p(2 P°)3o? (6 uv)

1279.25 44 78216 5 7 0.11 0.0038 0.080 -1.72 D 2

11 3p_3p° 1277.5 30 78310 9 15 1.6 0.063 2.4 -0.24 D 2

(7 uv)

1277.62 44 78316 5 7 1.5 0.052 1.1 -0.58 D Is 1277.27 16 78307 3 5 1.2 0.048 0.60 -0.85 D Is 1277.15 0 78301 1 3 0.88 0.064 0.27 • -1.19 D Is 1277.77 44 78307 5 5 0.39 0.0095 0.20 -1.32 D Is [1277.4] 16 78301 3 3 0.65 0.016 0.20 -1.32 D Is [1277.8] 44 78301 5 3 0.042 6.2 X 10-4 0.013 -2.51 D Is

12 3p lp°

(8 uv)

1274.13 44 78531 5 7 0.0068 2.3 x 10-4 0.0048 -2.94 D 2

13 3p 3p° 1261.3 30 79315 9 9 1.2 0.029 1.1 -0.58 D 2

(9 uv)

1261.56 44 79311 5 5 0.93 0.022 0.46 -0.96 D Is 1260.96 16 79319 3 3 0.31 0.0074 0.092 -1.65 D Is [1261.4] 44 79319 5 3 0.50 0.0072 0.15 -1.44 D Is [1260.9] 16 79323 3 1 1.2 0.0096 0.12 -1.54 D Is 1261.12 16 79311 3 5 0.30 0.012 0.15 -1.44 D Is 1260.75 0 79319 1 3 0.40 0.029 0.12 -1.54 D Is

32
Cl. Allowed Transitions — Continued

No Transition Multiplet x(A) isi(cm ') Ffclcm ') gi gk Ta;(10h sec ') fik S(at.u.) log gf Accu- Source

Array racy

14 1 D- 'D°

(34 uv)

1481.77 10194 77681 5 5 0.33 0.011 0.27 - 1.26 D 2

15 ‘D — 3F°

(35 uv)

1470.20 10194 78216 5 7 0.0088 4.0 X 10-4 0.0097 -2.70 D 2

16 'D — 3 D°

1469 10194 78301 5 3 0.019 3.6 X 10-4 0.0087 -2.74 D 2

17 •D-'F0

(37 uv)

1463.33 10194 78531 5 7 2.1 0.093 2.2 -0.33 D 2

18 ip-'P0 1459.05 10194 78728 5 3 0.37 0.0070 0.17 -1.46 D 2

(38 uv)

19 on 1 CO o

o 1765 21648 78301 1 3 0.0071 0.0010 0.0058 -3.00 D 2

20 1 S _1P° 1751.9 21648 78728 1 3 0.87 0.12 0.69 -0.92 D 2

(62 uv)

21 2P

2 - 3p 3p° 1280.4 30 78133 9 9 0.82 0.020 0.76 -0.74 D 2 2p( 2P°)4s (5 uv)

1280.34 44 78148 5 5 0.62 0.015 0.32 -1.12 D Is 1280.34 16 78117 3 3 0.20 0.0050 0.063 -1.83 D Is 1280.89 44 78117 5 3 0.35 0.0052 0.11 -1.58 D Is 1280.65 16 78105 3 1 0.81 0.0066 0.084 -1.70 D Is 1279.90 16 78148 3 5 0.21 0.0087 0.11 -1.58 D Is 1280.15 0 78117 1 3 0.27 0.020 0.084 -1.70 D Is

22 >D — 3 P°

1472 10194 78117 5 3 0.0051 1.0 X lO"4 0.0024 -3.30 D 2

23 iD-ip° 1467.45 10194 78338 5 3 0.46 0.0089 0.21 -1.35 D 2

(36 uv)

24 1 S- 1 P° 1764 21648 78338 1 3 0.022 0.0031 0.018 -2.51 D 2

25 2p

2 — 1 D — ‘D 0 1364.14 10194 83500 5 5 0.047 0.0013 0.029 -2.19 D 2

2p(2 P°)4d (39 uv)

26 2s22p3p — 3p_3g° 2903.9 71375 105801 9 3 0.044 0.0019 0.16 -1.78 D 5n 2s2p3

[2904.9] 71386 105801 5 3 0.022 0.0017 0.079 -2.08 D 5n

[2903.1] 71365 105801 3 3 0.017 0.0021 0.061 -2.20 D on

[2902.1] 71353 105801 1 3 0.0066 0.0025 0.024 -2.60 D 5n

27 2p3s — 3p°_3J) 10695 60374 69722 9 15 0.18 0.50 160 0.66 D 6n

2p(2 P°)3p (1) 10691.2 60394 69744 5 7 0.18 0.43 75 0.33 D Is 10683.1 60353 69711 3 5 0.13 0.38 40 0.06 D Is 10685.3 60334 69690 1 3 0.10 0.51 18 -0.29 D Is 10729.5 60394 69711 5 5 0.043 0.074 13 -0.43 D Is 10707.3 60353 69690 3 3 0.072 0.12 13 -0.43 D Is 10754.0 60394 69690 5 3 0.0048 0.0050 0.89 -1.60 D Is

28 3p°_3g 9640.6 60374 70744 9 3 0.22 0.10 29 -0.04 D 6n

(2) 9658.49 60394 70744 5 3 0.12 0.10 16 -0.30 D Is 9620.86 60353 70744 3 3 0.074 0.10 9.7 -0.51 D Is 9603.09 60334 70744 1 3 0.024 0.10 3.2 -0.99 D Is

33
Cl. Allowed Transitions — Continued

No Transition

Array

Multiplet mA) £i(cm *) Ek( cm *) gi gk ^Ari(108 SeC ! ) fik S(at.u.) log gf Accuracy

Source

29 W *-0 o 1CO id 9087.6 60374 71375 9 9 0.25 0.31 83 0.44 D 6n

(3) 9094.89 60394 71386 5 5 0.19 0.23 35 0.07 D Is 9078.32 60353 71365 3 3 0.062 0.077 6.9 -0.64 D Is 9111.85 60394 71365 5 3 0.11 0.080 12 -0.40 D Is 9088.57 60353 71353 3 1 0.25 0.10 9.2 -0.51 D Is 9061.48 60353 71386 3 5 0.065 0.13 12 -0.40 D Is 9062.53 60334 71365 1 3 0.083 0.31 9.2 -0.51 D Is

30 "So i 6 11330.3 61982 72611 3 5 0.13 0.42 47 0.10 D 6n

(9)

31 ip°_iS 8335.19 61982 73976 3 1 0.32 0.11 9.1 -0.48 D 6n

(10)

32 2p3s — 3p°_3J) 5041.7 60374 80203 9 15 0.0039 0.0025 0.37 -1.65 D 6n

2p(2 P°)4p (4) 5041.66 60394 80223 5 7 0.0038 0.0020 0.17 -1.99 D Is 5039.05 60353 80192 3 5 0.0029 0.0018 0.092 -2.26 D Is 5039.05 60334 80173 1 3 0.0022 0.0025 0.041 -2.61 D Is [5049.6] 60394 80192 5 5 9.8 X 10-4 3.7 x 10-4 0.031 -2.73 D Is [5044.0] 60353 80173 3 3 0.0016 6.2 x 10-4 0.031 -2.73 D Is [5054.5] 60394 80173 5 3 1.1 x 10“4 2.5 X 10-5 0.0021 -3.90 D Is

33 3p°_3g 4822.1 60374 81106 9 3 0.0084 9.8 x 10-4 0.14 -2.05 D In

(5) 4826.73 60394 81106 5 3 0.0047 9.8 x 10-4 0.078 -2.31 D Is 4817.33 60353 81106 3 3 0.0028 9.9 X 10-4 0.047 -2.53 D Is 4812.84 60334 81106 1 3 9.7 x 10-4 0.0010 0.016 -2.99 D Is

34 3p° 3p 4769.7 60374 81334 9 9 0.016 0.0053 0.75 -1.32 D 6n

(6) 4771.72 60394 81344 5 5 0.012 0.0039 0.31 -1.70 D Is 4766.62 60353 81326 3 3 0.0039 0.0013 0.063 -2.40 D Is 4775.87 60394 81326 5 3 0.0062 0.0013 0.10 -2.20 D Is 4770.00 60353 81312 3 1 0.015 0.0018 0.083 -2.28 D Is 4762.41 60353 81344 3 5 0.0038 0.0021 0.10 -2.20 D Is 4762.41 60334 81326 1 3 0.0052 0.0053 0.083 -2.28 D Is

35 *6O 1 "5 5380.24 61982 80564 3 3 0.016 0.0070 0.37 -1.68 D - 6n (ID

36 o 1 6 5052.12 61982 81770 3 5 0.017 0.011 0.54 -1.49 D 6n

(12)

37 i p°_

S 4932.00 61982 82252 3 1 0.046 0.0055 0.27 -1.78 D 6n

(13)

38 2p3s — ip°_ ip 4371.33 61982 84852 3 3 0.0097 0.0028 0.12 -2.08 D- ca

2p(2 P°)5p (14) *

39 o 1 6 4268.99 61982 85400 3 5 0.0032 0.0015 0.062 -2.36 D In

(16)

40 2s2p3 — 3[) 0 _3p 5797.8 64091 81334 15 9 0.0039 0.0012 0.34 -1.75 D 6n

2s22p(2 P°)4p (18)

5793.51 64089 81344 7 5 0.0033 0.0012 0.16 -2.08 D Is 5801.17 64093 81326 5 3 0.0029 8.9 X 10-4 0.085 -2.35 D Is 5805.76 64092 81312 3 1 0.0039 6.6 X 10-4 0.038 -2.70 D Is 5794.46 64093 81344 5 5 5.8 X 10-4 2.9 X 10-4 0.028 -2.83 D Is 5800.23 64092 81326 3 3 9.7 X 10-4 4.9 X 10“4 0.028 -2.83 D Is [5794.8] 64092 81344 3 5 4.0 x 10-5 3.3 x 10"5 0.0019 -4.00 D Is

41 2p3p — 1 5o 11330.4 68858 77681 3 5 0.198 0.63 71 0.280 c 6n, ca

2p(2 P°)3d (19)

34
Cl. Allowed Transitions — Continued

No. Transition

Array

Multiplet x(A) £i(cm ') £V(cm _l

) gi gk Aki( 10H sec

-1

) fk S(at.u.) log gf Accuracy

Source

42 ip_ ip° 10124 68858 78728 3 3 0.171 0.262 26.2 -0.105 c 6n, ca

43 3p_3p° 11755 69722 78227 15 21 0.242 0.70 407 1.022 c 6n, ca

(24)

11754.0 69744 78250 7 9 0.241 0.64 174 0.65 c Is 11754.0 69711 78216 5 7 0.216 0.63 121 0.495 c Is 11747.5 69690 78199 3 5 0.202 0.70 81 0.321 c Is 11801.8 69744 78216 7 7 0.0266 0.056 15.1 -0.411 c Is [11778] 69711 78199 5 5 0.0375 0.078 15.1 -0.410 c Is [11824] 69744 78199 7 5 0.00104 0.00156 0.426 -1.96 c Is

44 3 D — 3 D° 11641 69722 78310 15 15 0.065 0.132 76 0.297 c 6n, ca

(25)

11667.1 69744 78316 7 7 0.057 0.117 31.5 - 0.086 c Is 11631.6 69711 78307 5 5 0.0453 0.092 17.6 -0.338 c Is 11609.9 69690 78301 3 3 0.0492 0.099 11.4 -0.53 c Is 11677.0 69744 78307 7 5 0.0101 0.0147 3.95 -0.99 c Is 11638.6 69711 78301 5 3 0.0163 0.0198 3.80 -1.004 c Is 11619.0 69711 78316 5 7 0.0073 0.0207 3.95 -0.99 c Is 11602.9 69690 78307 3 5 0.0099 0.0332 3.80 - 1.002 c Is

45 3g_3po 11664 70744 79315 3 9 0.157 0.96 111 0.461 c 6n, ca

(29)

11667.1 70744 79311 3 5 0.158 0.54 62 0.208 c Is 11656.0 70744 79319 3 3 0.158 0.321 37.0 -0.016 c Is [11653] 70744 79323 3 1 0.157 0.107 12.3 - 0.494 c Is

46 3p 3p° 12591 71375 79315 9 9 0.105 0.249 93 0.351 c 6n, ca

(30)

12614.8 71386 79311 5 5 0.078 0.186 38.7 -0.031 c Is 12565.0 71365 79319 3 3 0.0262 0.062 7.7 -0.73 c Is 12602.6 71386 79319 5 3 0.0435 0.062 12.9 -0.51 c Is 12565.0 71365 79323 3 1 0.105 0.083 10.3 -0.60 c Is 12582.3 71365 79311 3 5 0.0262 0.104 12.9 -0.51 c Is 12551.0 71353 79319 1 3 0.0352 0.249 10.3 -0.60 c Is

47 16890 72611 78531 5 7 0.123 0.74 205 0.57 c 6n, ca

48 2p3p — -5 1 o 10548.0 68858 78338 3 3 0.010 0.017 1.8 -1.29 D 6n

2p(2 P°)4s (20)

49 3J) _3p° 11886 69722 78133 15 9 0.11 0.14 85 0.34 D 6n

(23)

11894.9 69744 78148 7 5 0.096 0.15 40 0.01 D Is 11894.9 69711 78117 5 3 0.084 0.11 21 -0.27 D Is 11880.4 69690 78105 3 1 0.11 0.080 9.4 -0.62 D Is 11849.3 69711 78148 5 5 0.017 0.036 7.1 -0.74 D Is 11863.0 69690 78117 3 3 0.029 0.061 7.1 -0.74 D Is [11820] 69690 78148 3 5 0.0012 0.0040 0.47 -1.92 D Is

50 2p3p — ip_ ip° 6587.75 68858 84032 3 3 0.024 0.015 1.0 -1.34 D ca

2p( 2 P°)4d (22)

35
Forbidden Transitions

The adopted values are selected from calculations by Garstang [1], Naqvi [2], and Yamanouchi

and Horie [3] , which are very similar in character. All electric quadrupole values are taken from

Garstang [1], since his estimate of sq appears to be the most advanced one. For most magnetic

dipole lines, values could be taken from Garstang [1], as well as from Naqvi [2], and Yamanouchi

and Horie [3], who all arrive at identical results. Only for the 3P—l S transition, for which configuration interaction is important, a difference occurs. In this case the results of Garstang [1], and

Yamanouchi and Horie [3] are selected, since they represent, according to a later study by Garstang

[4], the best available approximation (see also the general introduction).

References

[1] Garstang, R. H., Monthly Notices Roy. Astron. Soc. Ill, 115—124 (1951). [2] Naqvi, A. M,. Thesis Harvard (1951). [3] Yamanouchi, T. and Horie, H., J. Phys. Soc. Japan 7, 52-56 (1952). [4] Garstang, R. H., Proc. Cambridge Phil. Soc. 52, 107-113 (1956).

Cl. Forbidden Transitions

No. Transition Multiplet mA) Ei(cm ') Ek( cm ') g> gk Type of T*i(sec -1

) S(at.u.) Accu- Source

Array Transition racy

1 2p2 — 2p2 3p_3p

[61.0 x 105

] 0.0 16.4 1 3 m 7.93 x 10-8 2.00 B 1,2,3

[23.0 x 105

] 0.0 43.5 1 5 e 2.00 X 10- 14 3.82 C 1 [36.9 X 105

] 16.4 43.5 3 5 m 2.68 x 10- 7 2.50 B 1,2,3

[36.9 x 105

] 16.4 43.5 3 5 e 4.20 X 10- 15 8.6 C 1

2 3P-1D

(1 F)

9808.9 0.0 10193.7 1 5 e 5.5 x 10-8 1.5 X lO"5 D 1 9823.4 16.4 10193.7 3 5 m 7.8 x 10-5 1.37 X lO”5 C 1,2,3

9823.4 16.4 10193.7 3 5 e 1.7 X10~7 4.6 X lO"5 D 1 9849.5 43.5 10193.7 5 5 m 2.30 X 10-4 4.08 x 10-5 C 1, 2,3

9849.5 43.5 10193.7 5 5 e 1.2 x lO"6 3.3 X 10-4 D 1

3

3 P

_1S

(2 F)

4621.5 16.4 21648.4 3 1 m 0.00260 9.5 X 10“6 C 1,3

4627.3 43.5 21648.4 5 1 e 1.9 X 10-5 2.4 x lO"5 D 1

4

! D — ! S

(3 F)

8727.4 10193.7 21648.4 5 1 e 0.50 15.1 C 1

36
Ground State

CII

ls

22s2 2p 2 P° i/2

Ionization Potential 24.376 eV = 196659.0 cm'1

Allowed Transitions

List of tabulated lines:

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

687.059 10 3360.9 27 4413.2 24

687.35 10 3361.09 27 4618.9 26

687.355 10 3361.75 27 4628.1 26

858.092 9 3581.80 18 5132.96 14

858.559 9 3584.98 18 5133.29 14

903.624 3 3585.83 18 5137.26 14

903.962 3 3587.68 18 5139.21 14

904.142 3 3588.92 18 5143.49 14

904.480 3 3589.67 18 5145.16 14

1009.85 4 3590.87 18 5151.08 14

1010.07 4 3876.05 22 5640.50 13

1010.37 4 3876.19 22 5648.08 13

1036.34 2 3876.41 22 5662.51 13

1037.02 2 3876.67 22 5889,4 20

1065.88 6 3878.22 22 5889.97 20

1065.9 6 3879.60 22 5891.65 20

1066.12 6 3880.59 22 6578.03 11 1323.9 5 3881.2 22 6582.85 11 1334.53 1 3883.8 22 6779.74 12 1335.66 1 3918.98 17 6780.27 12

1335.71 1 3920.68 17 6783.75 12 2173.8 15 4074.53 23 6787.09 12 2174.1 15 4076.00 23 6791.30 12 2509.11 7 4267.02 21 6798.04 12 2511.71 7 4267.2 21 6800.50 12

2512.03 7 4267.27 21 6812.19 12 2746.50 19 4371.59 25 7231.12 16

2747.3 19 4372.49 25 7236.19 16

2747.31 19 4374.28 25 7236.2 16

2836.71 8 4411.20 24 18895 29

2837.60 8 4411.52 24 18916 29

2992.6 28

Self-consistent field calculations by Weiss [1], and Biermann and Liibeck [3], and a high current

arc experiment by Maecker [2] are utilized for the tabulation. The results for the lower and moderately excited transitions should be quite uncertain because in the calculations the strong effects

of configuration interaction are essentially neglected, and the experimental work is subject to large

systematic uncertainties.

References

[1] Weiss, A. W., private communication (1964).

[2] Maecker, H., Z. Physik 135, 13—22 (1953).

[3] Biermann, L. and Liibeck, K., Z. Astrophys. 25, 325-339 (1948).
ClI. Allowed Transitions

No. Transition Multiplet mA) £i(cm ') Ek( cm ’) gi gk ^a-KIO8 sec ') fik S(at.u.) log gf Accu- Source

Array racy

1 2s22p — 2s2p2 2p° 2 J) 1335.3 43 74932 6 10 6.0 0.27 7.0 0.20 E 1

(1 uv)

1335.71 64 74931 4 6 6.0 0.24 4.2 -0.02 E Is 1334.53 0 74933 2 4 4.9 0.26 2.3 -0.28 E Is 1335.66 64 74933 4 4 1.0 0.027 0.47 -0.97 E Is

2 2p°_2g 1036.8 43 96494 6 2 11 0.059 1.2 -0.45 E 1 (2 uv)

1037.02 64 96494 4 2 7.3 0.059 0.80 -0.63 E Is 1036.34 0 96494 2 2 3.6 0.059 0.40 -0.93 E Is

3 2p° 2p 904.09 43 110652 6 6 42 0.52 9.2 0.49 E 1 (3 uv)

904.142 64 110666 4 4 35 0.43 5.1 0.23 E Is 903.962 0 110625 2 2 27 0.34 2.0 -0.17 E Is 904.480 64 110625 4 2 14 0.084 1.0 -0.47 E Is 903.624 0 110666 2 4 6.9 0.17 1.0 -0.47 E Is

4 2s2p2 — 2p3 4p_4S

° 1010.2 43033 142024 12 4 32 0.16 6.5 0.29 E 1 (7 uv)

1010.37 43051 142024 6 4 16 0.17 3.3 0.00 E Is 1010.07 43022 142024 4 4 11 0.17 2.2 -0.18 E Is 1009.85 43000 142024 2 4 5.4 0.17 1.1 -0.48 E Is

5

2 D — 2 D°

(11 uv)

1323.9 74932 150465 10 10 8.7 0.23 10 0.36 E 1

6 2J)_2p° 1066.0 74932 168744 10 6 8.1 0.083 2.9 -0.08 E 1 (12 uv)

1065.88 74931 168750 6 4 7.1 0.081 1.7 -0.31 E Is 1066.12 74933 168732 4 2 8.1 0.069 0.97 -0.56 E Is [1065.9] 74933 168750 4 4 0.79 0.014 0.19 -1.27 E Is

7 2p_2J)° 2511.0 110652 150465 6 10 0.97 0.15 7.6 -0.04 E 2

(14 uv)

2512.03 110666 150463 4 6 0.96 0.14 4.5 -0.26 E Is 2509.11 110625 150468 2 4 0.83 0.16 2.6 -0.50 E Is 2511.71 110666 150468 4 4 0.17 0.016 0.52 -1.20 E Is

8 2s2p2 — 2g 2p° 2837.0 96494 131 732 2 6 0.35 0.13 2.4 -0.59 E 2

2s2('S)3p (13 uv)

2836.71 96494 131736 2 4 0.36 0.086 1.6 -0.77 E Is 2837.60 96494 131725 2 2 0.35 0.043 0.80 -1.07 E Is

9 2p-( 1 S)3s 2p°_2§ 858.41 43 116538 6 2 12 0.046 0.78 -0.56 D 1 (4 uv)

858.559 64 116538 4 2 8.3 0.046 0.52 -0.74 D Is 858.092 0 116538 2 2 4.2 0.046 0.26 -1.04 D Is

10 2p — (

1 S)3d 2p°_2J) 687.25 43 145551 6 10 22 0.26 3.5 0.19 D 1 (5 uv)

687.355 64 145551 4 6 22 0.23 2.1 -0.03 D Is 687.059 0 145550 2 4 19 0.27 1.2 -0.28 D Is [687.35] 64 145550 4 4 3.6 0.025 0.23 -0.99 D Is

11 3s —

(

1 S)3p 2g _2p° 6579.7 116538 131732 2 6 0.480 0.93 40.5 0.272 C 1,3

(2) 6578.03 116538 131736 2 4 0.480 0.62 27.0 0.096 c Is 6582.85 116538 131725 2 2 0.479 0.311 13.5 -0.206 c Is

12 2s2p3s — 4p°_4J) 6785.6 167007 181740 12 20 0.369 0.424 114 0.71 c ca

2s2p(3 P°)3p (14)

6783.75 167033 181770 6 8 0.370 0.340 45.6 0.310 c Is 6779.74 166988 181734 4 6 0.258 0.267 23.8 0.029 c Is 6780.27 166965 181709 2 4 0.154 0.212 9.5 -0.373 c Is 6800.50 167033 181734 6 6 0.110 0.076 10.2 -0.341 c Is

38
ClI. Allowed I ransitions — Continued

No Transition

Array

Multiplot x(A) £j(cm-') Ek( cm ') gi gk /M10* sec"') fk S(at.u.) log gf Accuracy Source

6791.30 166988 181709 4 4 0.195 0.135 12.1 -0.268 C Is 6787.09 166965 181695 2 2 0.307 0.212 9.5 -0.373 c Is 6812.19 167033 181709 6 4 0.0183 0.0085 1.14 -1.292 c Is 6798.04 166988 181695 4 2 0.061 0.0211 1.89 -1.074 c Is

13 4 P°- 4 S 5653.9 167007 184689 12 4 0.65 0.104 23.2 0.096 c ca

(15)

5662.51 167033 184689 6 4 0.325 0.104 11.6 -0.205 c Is 5648.08 166988 184689 4 4 0.217 0.104 7.7 -0.381 c Is 5640.50 166965 184689 2 4 0.109 0.104 3.86 -0.68 c Is

14 *0o 1•u *0 5141.8 167007 186450 12 12 0.86 0.342 69 0.61 c ca

(16)

5145.16 167033 186464 6 6 0.60 0.239 24.3 0.157 c Is 5139.21 166988 186441 4 4 0.115 0.0456 3.09 -0.74 c Is 5137.26 166965 186425 2 2 0.144 0.057 1.93 -0.94 c Is 5151.08 167033 186441 6 4 0.385 0.102 10.4 -0.213 c Is 5143.49 166988 186425 4 2 0.72 0.142 9.6 -0.246 c Is 5133.29 166988 186464 4 6 0.260 0.154 10.4 -0.210 c Is 5132.96 166965 186441 2 4 0.361 0.285 9.6 -0.244 c Is

15 3s — ('S)4p 2g _2p° 2173.9 116538 162523 2 6 0.253 0.054 0.77 -0.97 c 3

[2173.8] 116538 162525 2 4 0.251 0.0356 0.51 -1.147 c Is [2174.1] 116538 162519 2 2 0.252 0.0179 0.256 - 1.447 c Is

16 3p-(x S)3d 2p°_2J) 7234.4 131732 145551 6 10 0.450 0.59 84 0.55 c 1 (3) 7236.19 131736 145551 4 6 0.446 0.52 50 0.322 c Is 7231.12 131725 145550 2 4 0.375 0.59 28.0 0.071 c Is [7236.2] 131736 145550 4 4 0.075 0.059 5.6 -0.63 c Is

17 3p-( 1 S)45 2p°_2g 3920.2 131732 157234 6 2 1.87 0.143 11.1 -0.066 c 3

(4) 3920.68 131736 157234 4 2 1.24 0.143 7.4 -0.242 c Is 3918.98 131725 157234 2 2 0.62 0.143 3.70 -0.54 c Is

18 2s2p3p — 4J) _4p° 3589.3 181740 209593 20 12 0.92 0.107 25.3 0.330 c ca

2s2p(3 P°)4s (23)

3589.67 181770 209620 8 6 0.74 0.107 10.1 -0.068 c Is 3590.87 181734 209574 6 4 0.58 0.075 5.3 -0.347 c Is 3590.87 181709 209550 4 2 0.465 0.0449 2.12 -0.75 c Is 3584.98 181734 209620 6 6 0.166 0.0319 2.26 -0.72 c Is 3587.68 181709 209574 4 4 0.295 0.057 2.69 -0.64 c Is 3588.92 181695 209550 2 2 0.466 0.090 2.13 -0.74 c Is 3581.80 181709 209620 4 6 0.0184 0.0053 0.250 -1.67 c Is 3585.83 181695 209574 2 4 0.0426 0.0178 0.420 -1.450 c Is

19 3p —

(

1 S)4rf 2p°_2£) 2747.0 131732 168124 6 10 0.466 0.088 4.77 -0.278 c ca

(15 uv)

2747.31 131736 168124 4 6 0.466 0.079 2.86 -0.50 c Is 2746.50 131725 168124 2 4 0.389 0.088 1.59 -0.75 c Is [2747.3] 131736 168124 4 4 0.078 0.0088 0.318 - 1.454 c Is

20 3d-(>S)4p 2Q_2p° 5890.4 145551 162523 10 6 0.337 0.105 20.4 0.022 c ca

(5) 5889.97 145551 162525 6 4 0.302 0.105 12.2 -0.201 c Is 5891.65 145550 162519 4 2 0.337 0.088 6.8 -0.455 c Is [5889.4] 145550 162525 4 4 0.0337 0.0175 1.36 -1.154 c Is

21 3d-(‘S)4/ 2J) —2p° 4267.2 145551 168979 10 14 2.46 0.94 132 0.97 c ca

(6) 4267.27 145551 168979 6 8 2.44 0.89 75 0.73 c Is 4267.02 145550 168979 4 6 2.30 0.94 53 0.58 c Is [4267.2] 145551 168979 6 6 0.164 0.0447 3.77 -0.57 c Is

39
CII. Allowed Transitions — Continued

No. Transition Multiplet mA) is,(cm *) Ek( cm ’) gi gk /4*,(108 sec

-1

) fik S(at.u.) log gf Accu- Source

Array racy

22 2s2p3d — U o ltU o 3876.7 195786 221574 28 36 2.66 0.77 275 1.333 C ca

2s2p(3P°)4/ (33)

3876.19 195812 221604 10 12 2.67 0.72 92 0.86 C Is 3876.41 195785 221575 8 10 2.43 0.69 70 0.74 C Is 3876.67 195765 221553 6 8 2.30 0.69 53 0.62 c Is 3876.05 195751 221543 4 6 2.28 0.77 39.3 0.489 c Is 3880.59 195812 221575 10 10 0.218 0.0493 6.3 -0.307 c Is 3879.60 195785 221553 8 8 0.360 0.081 8.3 -0.187 c Is 3878.22 195765 221543 6 6 0.365 0.082 6.3 -0.307 c Is [3883.8] 195812 221553 10 8 0.0080 0.00145 0.186 -1.84 c Is [3881.2] 195785 221543 8 6 0.0132 0.00224 0.229 -1.75 c Is

23 Q

o 1

(36)

4076.00 196581 221107 8 10 2.28 0.71 76 0.75 c ca, Is 4074.53 196571 221106 6 8 1.96 0.65 52 0.59 c ca. Is

24 2J)° _ 2JT 4411.4 198433 221095 10 14 2.11 0.86 125 0.93 c ca

(39)

4411.52 198437 221099 6 8 2.09 0.81 71 0.69 c Is 4411.20 198426 221090 4 6 1.97 0.86 50 0.54 c Is [4413.2] 198437 221090 6 6 0.140 0.0410 3.57 -0.61 c Is

25 1 Q

O

Oh 't

(45)

4374.28 198842 221697 6 8 1.99 0.76 66 0.66 c ca. Is 4372.49 198864 221727 4 6 1.40 0.60 34.5 0.380 c ca, Is 4371.59 198878 221746 2 4 0.83 0.475 13.7 -0.022 c ca. Is

26 2p° _ 2Q 4619.1 199966 221609 14 18 2.24 0.92 196 1.110 c ca

(50)

[4618.9] 199984 221628 8 10 2.24 0.90 109 0.86 c Is [4618.9] 199941 221585 6 8 2.16 0.92 84 0.74 c Is [4628.1] 199984 221585 8 8 0.079 0.0255 3.11 -0.69 c Is

27 3rf—

(

1 S)5/j. 2jy 2p° 3361.3 145551 175293 10 6 0.121 0.0123 1.36 -0.91 c ca

(7) 3361.09 145551 175295 6 4 0.109 0.0124 0.82 -1.130 c Is 3361.75 145550 175288 4 2 0.121 0.0102 0.453 -1.388 c Is [3360.9] 145550 175295 4 4 0.0121 0.00206 0.091 -2.085 c Is

28 3d-('S)5f 2Q_2po 2992.6 145551 178956 10 14 0.90 0.169 16.6 0.227 c ca

(8)

29 4s —

(

1 S)4p 2§ _ 2 P° 18902 157234 162523 2 6 0.074 1.18 147 0.373 c 3

[18895] 157234 162525 2 4 0.074 0.79 98 0.197 c Is [18916] 157234 162519 2 2 0.073 0.393 49.0 -0.104 c Is

Forbidden Transitions

Naqvi’s calculation [1] of the one possible transition in the ground state configuration 2p is the only available source. The line strength should be quite accurate, since it does not sensitively

depend on the choice of the interaction parameters.

[1] Naqvi, A. M., Thesis Harvard (1951).

Reference

CII. Forbidden Transitions

No. Transition Multiplet mA) £i(cm ') Ek(c m ') g> gk Type of Aki( sec ') S(at.u.) Accu- Source

Array Transition racy

1 2p — 2p 2p° 2p°

[15.6 x 105

] 0 64 2 4 m 2.36 x 10~6 1.33 C 1 40
Ground State

C hi

l* 2 2s2 'So

Ionization Potential 47.864 eV = 386213.9 cm" 1

Allowed Transitions

List of tabulated lines:

Wavelength [A] No. Wavelength [Aj No. Wavelength [A] No.

310.171 3 3609.96 23 4673.91 15

371.694 11 3609.61 23 5244.5 14

371.72 11 3703.52 18 5249.6 26

371.747 11 3883.80 27 5253.55 14

371.784 11 3885.99 27 5272.56 14

371.80 11 3886.2 27 5696.0 17

386.203 2 3889.18 27 5857.9 20

459.462 9 3889.7 27 5862.8 20

459.521 9 3889.8 27 5871.6 20

459.633 9 4056.06 28 5871.8 20

459.64 9 4122.05 24 5880.4 20

538.075 7 4325.70 16 5894.1 20

538.150 7 4379.97 25 6727.1 13

538.312 7 4383.24 25 6730.7 13

574.279 10 4388.24 25 6742.1 13

690.526 8 4516.02 22 6744.2 13

977.026 1 4516.93 22 6762.2 13

1174.92 4 4647.40 12 6773.7 13

1175.25 4 4650.16 12 6851.2 19

1175.57 4 4650.9 15 6853.1 19

1175.70 4 4651.35 12 6857.3 19

1175.97 4 4651.8 15 6862.9 19

1176.35 4 4659.0 15 6869.1 19

1247.37 6 4663.53 15 6871.7 19

2296.89 5 4665.90 15 6881.4 19

3170.16 21

Values for the 2s2 — 2s2p and 2s2p — 2p2 transition arrays are taken from the self-consistent

field calculations of Weiss [1]. These calculations do not include the important effects of configuration interaction; hence fairly large uncertainties must be expected. The average of the

dipole length and velocity approximations is adopted [I]. Accuracies within 50 percent are indicated by the following comparison: Weiss [1] has undertaken refined calculations, including

configuration interaction, for the same transitions in Bel — the first member of this isoelectronic

sequence — in addition to calculations of the type done for this ion. In all cases the agreement

with the average of the dipole length and velocity approximations is close.

Reference

[1] Weiss, A. W., private communication (1964).

41
C III. Allowed Transitions

No Transition

Array

Multiplet mA) Ej( cm ') Ek( cm ') g> gk /4a-,( 108 sec ') fik S(at.u.) log gf Accuracy

Source

1 2s2 — 2s(2 S)2p *S — 1 P° 977.026 0.0 102351 1 3 19 0.81 2.6 -0.09 D 1 (1 uv) 2 2s2 — 2s( 2 S)3p XS_ip° 386.203 0.0 258931 1 3 38 0.26 0.32 -0.59 D ca

(2 uv)

3 2s2 -2s( 2 S)4p i S _ip° 310.171 0.0 322403 1 3 3.7 0.016 0.017 -1.79 D ca

(3 uv)

4 2s2p — 2p2 3p° 3p 1175.7 52419 137478 9 9 13 0.26 9.1 0.37 D 1 (4 uv)

1175.70 52447 137502 5 5 9.4 0.20 3.8 -0.01 D Is 1175.57 52390 137455 3 3 3.1 0.065 0.76 -0.71 D Is 1176.35 52447 137455 5 3 5.2 0.065 1.3 -0.49 D Is 1175.97 52390 137426 3 1 13 0.087 1.0 -0.58 D Is 1174.92 52390 137502 3 5 3.1 0.11 1.3 -0.49 D Is 1175.25 52367 137455 1 3 4.2 0.26 1.0 -0.58 D Is

5 i p°_i D 2296.89 102351 145875 3 5 3.6 0.47 11 0.15 D 1 (8 uv)

6 ip°_iS 1247.37 102351 182520 3 1 12 0.090 1.1 -0.57 D 1 (9 uv)

7 2s2p-2s(2 S)3s 3p°_3g 538.23 52419 238212 9 3 21 0.031 0.49 -0.55 D ca

(5 uv)

538.312 52447 238212 5 3 12 0.031 0.27 -0.81 D Is 538.150 52390 238212 3 3 7.1 0.031 0.16 -1.04 D Is 538.075 52367 238212 1 3 2.3 0.031 0.054 -1.51 D Is

8 .po _iS 690.526 102351 247170 3 1 22 0.053 0.36 -0.80 D ca

(10 uv)

9 2s2p-2s{2S)3d 3p° 3J) 459.57 52419 270013 9 15 79 0.42 5.7 0.57 D ca

(6 uv)

459.633 52447 270015 5 7 79 0.35 2.7 0.24 D Is 459.521 52390 270011 3 5 59 0.31 1.4 -0.03 D Is 459.462 52367 270009 1 3 44 0.42 0.63 -0.38 D Is 459.633 52447 270011 5 5 20 0.063 0.47 -0.51 D Is 459.521 52390 270009 3 3 33 0.10 0.47 -0.50 D Is [459.64] 52447 270009 5 3 2.2 0.0042 0.032 -1.68 D Is

10 o 1 6 574.279 102351 276483 3 5 63 0.52 2.9 0.19 D ca

(11 uv)

11 2s2p — 3p° _ 3J) 371.73 52419 321435 9 15 34 0.12 1.3 0.03 D ca

2s( 2 S)4d (7 uv)

371.747 52447 321450 5 7 34 0.10 0.61 -0.30 D Is 371.694 52390 321427 3 5 26 0.089 0.33 -0.57 D Is 371.694 52367 321411 1 3 19 0.12 0.15 -0.92 D Is 371.784 52447 321427 5 5 8.6 0.018 0.11 -1.05 D Is [371.72] 52390 321411 3 3 14 0.030 0.11* -1.05 D Is [371.80] 52447 321411 5 3 0.96 0.0012 0.0073 -2.23 D Is

12 2s3s — 3<SJ _ 3p° 4648.8 238212 259718 3 9 0.78 0.76 34.9 0.358 C ca

2s( 2 S)3p (1) 4647.40 238212 259724 3 5 0.78 0.423 19.4 0.103 C Is 4650.16 238212 259711 3 3 0.78 0.253 11.6 -0.121 C Is 4651.35 238212 259706 3 1 0.78 0.084 3.88 -0.60 C Is

13 2p3s — 3p°_3J) 6740.8 308283 323114 9 15 0.267 0.303 61 0.436 C ca

2p( 2 P°)3p (3) 6744.2 308317 323140 5 7 0.266 0.254 28.2 0.104 C Is 6730.7 308248 323101 3 5 0.201 0.227 15.1 -0.167 C Is 6727.1 308215 323076 1 3 0.149 0.303 6.7 -0.52 C Is [6762.2] 308317 323101 5 5 0.066 0.0453 5.0 -0.65 C Is [6742.1] 308248 323076 3 3 0.111 0.076 5.0 -0.64 C Is [6773.7] 308317 323076 5 3 0.0073 0.00301 0.336 -1.82 c Is

42
C III. Allowed Transitions — Continued

No. Transition Multiplet x(A) Ei( cm-1

) Ek(cm ') g> gk /M10M sec" 1 ) //a- S(at.u.) Jog gf Accu- Source

Array racy

14 3 P° — 3S 5263.1 308283 327277 9 3 0.58 0.080 12.5 -0.142 C ca

(4) 5272.56 308317 327277 5 3 0.320 0.080 7.0 - 0.398 C Is 5253.55 308248 327277 3 3 0.194 0.080 4.17 -0.62 C Is 5244.5 308215 327277 1 3 0.065 0.081 1.39 -1.094 c Is

15 3p° _ 3p 4662.7 308283 329724 9 9 0.84 0.273 37.7 0.390 c ca

(5) 4665.90 308317 329743 5 5 0.63 0.204 15.7 0.010 c Is [4659.0] 308248 329706 3 3 0.210 0.068 3.14 -0.69 c Is 4673.91 308317 329706 5 3 0.347 0.068 5.2 -0.468 c Is 4663.53 308248 329685 3 1 0.84 0.091 4.19 -0.56 c Is [4650.9] 308248 329743 3 5 0.211 0.114 5.2 -0.466 c Is [4651.8] 308215 329706 1 3 0.281 0.274 4.19 -0.56 c Is

16 -oo 1 6 4325.70 310005 333116 3 5 1.08 0.50 21.6 0.181 c ca

(7)

17 2s3p — •v0 1 6 5696.0 258931 276483 3 5 0.50 0.407 22.9 0.087 c ca

2s(2 S)3d (2)

18 2p3p — ip_ ip° 3703.52 319719 346713 3 3 0.320 0.066 2.41 -0.70 c ca

2p(2P°)3d (12)

19 3D _ 3 D° 6865.8 323114 337675 15 15 0.066 0.0469 15.9 -0.153 c ca

(19)

6871.7 323140 337688 7 7 0.059 0.0416 6.6 -0.54 c Is 6862.9 323101 337668 5 5 0.0463 0.0327 3.69 -0.79 c Is 6857.3 323076 337655 3 3 0.050 0.0352 2.39 -0.98 c Is [6881.4] 323140 337668 7 5 0.0103 0.0052 0.83 -1.438 c Is [6869.1] 323101 337655 5 3 0.0166 0.0070 0.80 -1.450 c Is [6853.1] 323101 337688 5 7 0.0074 0.0073 0.83 -1.436 c Is [6851.2] 323076 337668 3 5 0.0100 0.0117 0.80 -1.453 c Is

20 3J) _3p° 5880.4 323114 340115 15 9 0.0124 0.00385 1.12 -1.238 c ca

(20)

5894.1 323140 340101 7 5 0.0104 0.00385 0.52 -1.57 c Is 5871.6 323101 340128 5 3 0.0093 0.00290 0.280 -1.84 c Is 5857.9 323076 340142 3 1 0.0126 0.00216 0.125 -2.188 c Is [5880.4] 323101 340101 5 5 0.00186 9.6 X 10-4 0.093 -2.317 c Is [5862.8] 323076 340128 3 3 0.00313 0.00161 0.093 -2.315 c Is [5871.8] 323076 340101 3 5 1.25 X 10-4 1,07 X 10-4 0.0062 -3.492 c Is

21 2s4s — i S _ip° 3170.16 311721 343256 1 3 0.325 0.147 1.53 -0.83 c ca

2s(2S)5p (8)

22 2s4p — 3p°_3g 4516.5 31 7798 339933 9 3 1.66 0.169 22.6 0.182 c ca

2s(2 S)5s (9) 4516.93 317800 339933 5 3 0.92 0.169 12.6 -0.072 c Is 4516.02 317795 339933 3 3 0.55 0.169 7.5 -0.295 c Is 4516.02 317795 339933 1 3 0.184 0.169 2.51 -0.77 c Is

23 2s4p — 3p° _3£) 3609.3 317798 345496 9 15 0.95 0.308 32.9 0.442 c ca

2s(2S)Sd (10)

3609.61 317800 345496 5 7 0.95 0.259 15.4 0.113 c Is 3608.96 317795 345496 3 5 0.71 0.231 8.2 -0.160 c Is 3608.96 317795 345496 1 3 0.53 0.308 3.66 -0.51 c Is 3609.61 317800 345496 5 5 0.236 0.0461 2.74 -0.64 c Is 3608.96 317795 345496 3 3 0.394 0.077 2.74 -0.64 c Is 3608.96 317795 345496 3 5 0.0158 0.0051 0.183 -1.81 c Is

24 1P° — *D 4122.05 322403 346656 3 5 1.04 0.443 18.0 0.124 c ca

(17)

43
C III. Allowed Transitions — Continued

No. Transition

Array

Multiplet X(A) Ei( cm ') Ek( cm ') g> gk dfci (108 sec- 1 ) fk S(at.u.) log gf Accuracy

Source

25 2s4d- 3jy 3p° 4385.1 321435 344233 15 9 0.267 0.0463 10.0 -0.160 C ca

2s(2 S)5p (14)

4388.24 321450 344233 7 5 0.224 0.0462 4.67 -0.491 c Is 4383.24 321427 344233 5 3 0.200 0.0346 2.50 -0.76 c Is 4379.97 321411 344233 3 1 0.268 0.0257 1.11 -1.114 c Is 4383.24 321427 344233 5 5 0.0401 0.0115 0.83 -1.239 c Is 4379.97 321411 344233 3 3 0.067 0.0193 0.83 -1.238 c Is 4379.97 321411 344233 3 5 0.00268 0.00129 0.056 -2.414 c Is

26 iD- x P° 5249.6 324212 343256 5 3 0.52 0.128 11.1 -0.194 c ca

(23)

27 2s4d — 3{)_3po 3887.1 321435 347154 15 21 1.81 0.58 110 0.93 c ca

2s(2 S)5/ (15)

3889.18 321450 347155 7 9 1.81 0.53 47.2 0.57 c Is 3885.99 321427 347153 5 7 1.61 0.51 32.6 0.406 c Is 3883.80 321411 347151 3 5 1.52 0.57 22.0 0.236 c Is [3889.71 321450 347153 7 7 0.201 0.0456 4.09 -0.496 c Is [3886.2] 321427 347151 5 5 0.282 0.064 4.09 -0.495 c Is [3889.8] 321450 347151 7 5 0.0079 0.00128 0.115 -2.047 c Is

28 ‘D-iF° 4056.06 324212 348860 5 7 1.45 0.50 33.4 0.398 c ca

(24)

Forbidden Transitions

Naqvi’s calculations [1] are the only available source. The results for the 3P°—3p° transitions are essentially independent of the choice of the interaction parameters. For the 3 P°—X P° transitions, Naqvi uses empirical term intervals, i.e., the effects of configuration interaction should

be partially included.

Reference

[1] Naqvi, A. M., Thesis Harvard (1951).

C III. Forbidden Transitions

No. Transition

Array

Multiplet mA) Fdcm ') Ek( cm ') gi gk

Type of

Transition Aki( sec ') S(at.u.) Accuracy

Source

1 2s2p - 2s( 2S)2p 3p° 3p°

[43.5 X 105

] 52366.7 52389.7 1 3 m 2.18 x 10- 7 2.00 B 1 [17.6 x 105

] 52389.7 52446.5 3 5 m 2.47 X 10-« 2.50 B 1

2

CO 0 1 "d o [2000.0] 52366.7 102351 1 3 m 0.00142 1.26 X 10-6 C 1 [2000.9] 52389.7 102351 3 3 m 1.35 0.00120 C 1 [2003.2] 52446.5 102351 5 3 m 0.00179 1.60 X 10-6 C 1

44
Ground State

Ionization Potential

Civ

ls2 2s 2 S 1/2

64.476 eV = 520177.8 cm" 1

Allowed Transitions

List of tabulated lines:

Wavelength [A] No. Wavelength [A} No. Wavelength [A] No.

222.791 4 384.19 6 4647 19

244.907 3 419.525 5 4665 20

259.471 9 419.714 5 4737 22

259.542 9 1548.20 1 4789 18

289.143 8 1550.77 1 5021 16

289.230 8 2524.40 14 5023 16

296.857 7 2595.14 13 5801.51 10

296.951 7 2697.73 12 5812.14 10

312.418 2 2698.70 12 6592 21 312.455 2 3936 15 20694 11

384.032 6 4440.4 17 20780 11 384.178 6 4441.8 17 20828 11

The values taken from Weiss’ calculations [1] are estimated to be accurate to within 10 percent

because of the very close agreement between his dipole length and dipole velocity approximations.

The values calculated with the length approximation are adopted.

Reference

[1] Weiss, A. W„ Astrophys. J. 138, 1262-1276 (1963).

ClV. Allowed Transitions

No. Transition

Array

Multiplet X(A) £T Ek(cm ') gi gk /4fc,(10

8 sec

-1

) fk S(at.u.) Lg gf Accuracy

Source

1 2s — 2p

2g _ 2p° 1549.1 0.0 64555 2 6 2.65 0.286 2.91 -0.243 A 1 (1 uv)

1548.20 0.0 64591 2 4 2.65 0.190 1.94 - 0.420 A Is 1550.77 0.0 64484 2 2 2.63 0.0950 0.970 -0.721 A b

2 2s — 3p

2g 2p° 312.43 0.0 320070 2 6 45.6 0.200 0.412 -0.397 B + 1 (2 uv)

312.418 0.0 320080 2 4 45.7 0.134 0.275 -0.573 B + Is 312.455 0.0 320049 2 2 45.5 0.0666 0.137 -0.876 B + Is

3 2s — 4p

2g 2p° 244.907 0.0 408318 2 6 22.1 0.0597 0.0963 -0.923 B ca

(3 uv)

4 2s — 5p 2§ _ 2p° 222.791 0.0 448859 2 6 11.8 0.0263 0.0385 -1.280 B ca

(4 uv)

5 2p — 3s 2p° 2g 419.65 64555 302848 6 2 42.7 0.0376 0.312 -0.647 B + 1 (6 uv)

419.714 64591 302848 4 2 28.5 0.0376 0.208 -0.822 B + Is 419.525 64484 302848 2 2 14.3 0.0376 0.104 -1.123 B + Is

6 2p — 3d 2p°_ 2J) 384.12 64555 324887 6 10 177 0.654 4.96 0.594 B 4- 1 (7 uv)

384.178 64591 324891 4 6 177 0.589 2.98 0.372 B + Is 384.032 64484 324880 2 4 148 0.653 1.65 0.116 B + Is [384.19] 64591 324880 4 4 29.6 0.0654 0.331 -0.582 B + Is

45
ClV. Allowed Transitions—Continued

No. Transition

Array

Multiplet x(A)

r

£i(cm _I

) Ek( cm ') g> ^A-,(108 sec ') fix Sfat.u.) log gf Accuracy

Source

7 2p — 4^ 2p° _ 2$ 296.92 64555 401347 6 2 17.5 0.00772 0.0453 -1.334 B ca

(8 uv)

296.951 64591 401347 4 2 11.7 0.00772 0.0302 -1.510 B Is 296.857 64484 401347 2 2 5.85 0.00773 0.0151 -1.811 B Is

8 2p-4d 2p° 2J) 289.20 64555 410336 6 10 58.1 0.121 0.694 -0.137 B ca

(9 uv)

289.230 64591 410338 4 6 58.2 0.109 0.417 -0.359 B Is 289.143 64484 410334 2 4 48.5 0.122 0.231 -0.614 B Is [289.23] 64591 410334 4 4 9.69 0.0122 0.0463 -1.313 B Is

9 2p — 5d 2p° 2J) 259.52 64555 449887 6 10 22.8 0.0383 0.196 -0.639 B ca

(10 uv)

259.542 64591 449887 4 6 22.8 0.0345 0.118 -0.860 B Is 259.471 64484 449887 2 4 18.9 0.0382 0.0653 -1.117 B Is 259.542 64591 449887 4 4 3.80 0.00383 0.0131 -1.814 B Is

10 3s — 3p 2g 2p° 5804.9 302848 320070 2 6 0.318 0.481 18.4 -0.017 B 1

(1) 5801.51 302848 320080 2 4 0.319 0.322 12.3 -0.191 B Is 5812.14 302848 320049 2 2 0.316 0.160 6.13 - 0.494 B Is

11 3p — 3d 2p°_2J) 20754 320070 324887 6 10 0.00579 0.0623 25.5 -0.427 B 1

[20780] 320080 324891 4 6 0.00576 0.0559 15.3 -0.650 B Is [20694] 320049 324880 2 4 0.00486 0.0624 8.50 -0.904 B Is [20828] 320080 324880 4 4 9.53 X 10-4 0.00620 1.70 -1.606 B Is

12 4p — 5s 2p°_2g 2698.4 408318 445366 6 2 4.09 0.149 7.94 -0.049 B ca

(12 uv)

2698.70 408322 445366 4 2 2.73 0.149 5.29 -0.225 B Is 2697.73 408309 445366 2 2 1.37 0.149 2.65 -0.525 B Is

13 4d — 5p 2J) 2p° 2595.14 410336 448859 10 6 0.746 0.0452 3.86 -0.345 B ca

(13 uv)

14 4<i — 5/ 2 J) 2p° 2524.40 410336 449938 10 14 7.44 0.995 82.7 0.999 B ca

(14 uv)

15 55 — 6p 2g 2p° 3936 445366 470763 2 6 0.340 0.237 6.14 -0.325 B ca

(2)

16 5p — 65 2p°_2g 5022.2 448859 468765 6 2 1.40 0.176 17.5 0.024 B ca

(3) 5023 448861 468765 4 2 0.935 0.177 11.7 -0.150 B Is 5021 448854 468765 2 2 0.467 0.176 5.83 -0.453 B Is

17 5p — 6d 2p°_2J) 4441.8 448859 471368 6 10 1.05 0.516 45.3 0.491 B ca

(4) [4441.8] 448861 471368 4 6 1.05 0.465 27.2 0.270 B Is [4440.4] 448854 471368 2 4 0.874 0.516 15.1 0.014 B Is [4441.8] 448861 471368 4 4 0.175 0.0516 3.02 -0.685 B Is

18 5d — 6p 2J) 2p° 4789 449887 470763 10 6 0.341 0.0704 11.1 -0.152 B ca

(5)

19 5d-6f 2 J) _ 2p° 4647 449887 471403 10 14 1.85 0.837 128 0.923 B ca

(6)

20 5/— 6c? 2p°_2J) 4665 449938 471368 14 10 0.103 0.0241 5.18 -0.472 B ca

(7)

21 6s — Ip 2g 2p° 6592 468765 483931 2 6 0.132 0.258 11.2 -0.288 B ca

(10)

22 6d—8p 2p 2p° 4737 471368 492473 10 6 0.104 0.0210 3.27 -0.678 B ca

(12)

46
Ground State Is2 l S0

Ionization Potential 391.986 eV = 3162450 cm" 1

Allowed Transitions

The results of extensive non-relativistic variational calculations by Weiss [1] are chosen.

Values have been calculated in both the dipole length and dipole velocity approximations and agree

to within 1 percent, except for the 3p ‘P° —3d‘D transition where agreement is not as good. The

average of the two approximations is adopted [1].

Reference

[1] Weiss, A. W., private communication (1964).

C V. Allowed Transitions

No. Transition

Array

Multiplet mA) Ei( cm ') Ek(cm ’) g> gk ^a-,(10

8 sec ’) fik S(at.u.) log gf Accuracy

Source

1 Is2 — ls2p i S _ip° [40.270] 0 2483240 1 3 8870 0.647 0.0858 -0.189 A 1

2 Is2 — ls3p iS_ip° [34.973] 0 2859350 1 3 2550 0.141 0.0162 -0.852 A 1

3 ls2s — ls2p i S _ip° [3540.8] [2455006] 2483240 1 3 0.165 0.0931 1.09 -1.031 A 1

4 ls2s — ls3p i S _ip° [247.31] [2455006] 2859350 1 3 128 0.351 0.286 -0.455 A 1

5 ls2p — ls3d ip° — ip [267.21] 2483240 [2857480] 3 5 396 0.707 1.87 0.327 A 1

6 ls3d— ls3p J D — ‘P° [53460]? [2857480] 2859350 5 3 3.97 X 10- 4 0.0102 8.98 - 1.292 C + 1

7 ls2s — ls2p 3g 3p° 2273.9 2411244 2455207 3 9 0.565 0.132 2.95 - 0.404 A 1

8 ls2s — ls3p 3§ 3p° [227.37] 2411244 [2851060] 3 9 136 0.316 0.710 -0.023 A 1

9 ls2p — ls3d 3p°_3D 248.71 2455207 2857286 9 15 425 0.657 4.84 0.772 A 1

10 ls3p — ls3d 3p°_3D [16057]? [2851060] 2857286 9 15 0.00753 0.0485 23.1 -0.360 A 1
NITROGEN

Ni

Ground State Is2 2s2 2

p

3 4 S?/2

Ionization Potential 14.53 eV = 117214 cm-1

Allowed Transitions

List of tabulated lines:

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

1100.7 19 4222.12 29 6622.54 47

1134.17 1 4223.04 29 6626.8 47

1134.42 1 4224.74 29 6636.94 47

1134.98 1 4230.35 29 6644.96 47

1163.87 10 4253.28 28 6646.51 47

1163.88 10 4254.7 28 6653.46 47

1164.31 10 4258.7 28 6656.51 47

1167.45 9 4261.2 28 6926.90 48

1168.42 9 4263.2 28 6945.22 48

1168.54 9 4264.7 28 6951.7 48

1169.69 8 4269.8 28 6960.4 48

1176.4 14 4384.4 43 6973.0 48

1176.6 14 4391.3 43 6979.10 48

1177.7 14 4914.90 31 6981.8 48

1199.55 2 4935.03 31 7423.64 23

1200.22 2 5170.0 18 7442.30 23

1200.71 2 5181.5 18 7468.31 23

1231.7 20 5186.9 18 8184.85 22

1243.17 5 5197.8 49 8188.01 22

1243.30 5 5201.8 49 8200.36 22

1243.31 5 5281.18 17 8210.71 22

1310.54 13 5292.9 17 8216.32 22

1310.97 13 5293.5 17 8223.12 22

1316.29 12 5305.0 17 8242.37 22

1319.04 11 5309.2 17 8567.74 25

1319.72 11 5310.6 17 8590.01 25

1326.63 15 5314.8 17 8629.24 25

1327.96 15 5328.70 16 8655.87 25

1411.94 6 5344.4 16 8680.27 21

1492.62 3 5354.7 16 8683.40 21

1492.67 3 5356.77 16 8686.16 21

1494.67 3 5367.1 16 8703.26 21

1742.72 4 5372.5 16 8711.71 21

1742.73 4 5372.66 16 8718.84 21

1745.25 4 5378.3 16 8728.91 21

1745.26 4 5401.45 32 8747.36 21

4099.95 26 5411.88 32 9028.92 33

4109.96 26 5816.48 50 9045.88 27

4113.97 26 5829.53 50 9049.47 27

4137.63 30 5834.7 50 9049.89 27

4143.42 30 5841.01 50 9060.72 33

4151.46 30 5850.1 50 9386.81 24

4214.73 29 5854.16 50 9392.79 24

4215.92 29 5856.3 50 9460.68 24

4218.87 29 6606.3 47 9776.90 35

48
List of tabulated lines — Continued

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

9786.79 35 10563.3 39 11628.0 7 9788.30 35 10591.9 44 1 1656.0 7 9798.57 35 10596 44 11964 42

9810.02 35 10597.0 44 11997.9 42

9814.03 35 10623.2 38 12074.1 42

9822.75 35 10644.0 38 12107.4 42

9834.62 35 10653.0 38 12128.6 46

9863.33 35 10675 38 12186.9 46

9872.16 35 10693.2 37 12203.4 46

10105.1 34 10713.6 38 12232.9 46

10108.9 34 10718.0 38 12280 46

10112.5 34 10730.5 37 12288.0 46

10114.6 34 10757.9 38 12291 40

10128.3 34 10775.0 37 12307 46

10147.3 34 10879.2 36 12330 40

10164.8 34 10884.6 36 12384 40

10166.8 34 11180.1 45 12461.2 41

10200.0 34 11227.1 45 12467.8 41

10500.3 39 11237.6 45 12582.3 41

10507.0 39 11266.2 45

10513.4 39 11291.7 45

10520.6 39 11294.2 45

10533.8 39 11313.9 45

10539.6 39 11323.3 45

10549.6 39 11564.8 7

The numerical values for the 2s2 2p

3 — 2s 2pA

, 2p3 -2p- 3s, and 2p:i — 2p2 3d transitions are taken exclusively from measurements with a wall-stabilized high current arc by Labuhn [1], since

the available theoretical treatments for these transitions must be considered quite unreliable

because of the strong effects of configuration interaction. However, even the experimental data

should be considered with caution since they suffer, for example, from uncertainties in the identification of the fines.

The data for most higher excited transitions are taken from a stabilized-arc experiment by

Richter [2], the Coulomb approximation, and approximate self-consistent field calculations by

Kelly [6]. For about half of the 3p — 3d transitions the numbers agree within an impressive 10

percent, and the results have been averaged. For most 3s — 3p and 3s — 4p transitions, strong

cancellations in the calculations render the theoretical results unreliable. In these cases experimental results are exclusively used whenever available. The above material is supplemented

by a few numbers obtained from a shock tube investigation by Doherty [5] , a wall-stabilized arc study by Shumaker and Yokley [4], and work with a less refined arc source by Motschmann [3].

Motschmann’s absolute values appear to be shifted by a constant factor due to a demixing effect

in the arc and have been renormalized by applying a factor of 1.5, which has given the best fit with

Richter’s data.

References

[1] Labuhn, F., to be published in Z. Naturforsch.

[2] Richter, J., Z. Astrophys. 51, 177-186 (1961). [3] Motschmann, H., Z. Physik 143, 77-92 (1955). [4] Shumaker, Jr., J. P., and Yokley, C. R., Applied Optics 3, 83-87 (1964).

[5] Doherty, L. R., Thesis Michigan (1961). [6] Kelly, P. S., J. Quant. Spectrosc. Radiat. Transfer 4, 117-148 (1964).
N I. Allowed Transitions

No. Transition Multiplet MA) Ei(c m *) Ek(cm ') g> Sfc Ta-,( 108 sec *) fk S(at.u.) log gf Accu- Source

Array racy

1 2s22p3 — 4 S°- 4 P 1134.6 0.0 88135 4 12 2.3 0.13 2.0 -0.27 D- 1 2s2p4 (2 uv)

1134.98 0.0 88110 4 6 2.2 0.064 0.95 -0.59 D- 1 1134.42 0.0 88153 4 4 2.5 0.048 0.72 -0.71 D- 1, Is 1134.17 0.0 88173 4 2 2.5 0.024 0.36 -1.02 D- 1, Is

2 2p

3 - 4S°- 4 P 1199.9 0.0 83336 4 12 5.4 0.35 5.5 0.15 D- 1 2p2

( 3P)3s (1 uv)

1199.55 0.0 83366 4 6 5.5 0.18 2.8 -0.15 D- 1 1200.22 0.0 83319 4 4 5.3 0.11 1.8 -0.34 D- 1 1200.71 0.0 83286 4 2 5.5 0.059 0.94 -0.62 D- 1

3 2J)° 2p 1493.3 19228 86193 10 6 5.5 0.11 5.4 0.04 D 1 (4 uv)

1492.62 19224 86221 6 4 5.3 0.12 3.5 -0.15 D 1, Is 1494.67 19233 86138 4 2 5.0 0.084 1.6 -0.48 D 1 1492.67 19233 86221 4 4 0.58 0.019 0.38 -1.11 D 1, Is

4

2p° 2p 1743.6 28840 86193 6 6 2.0 0.091 3.1 -0.26 D 1 (9 uv)

1742.73 28840 86221 4 4 1.8 0.082 1.9 -0.48 D 1, Is 1745.25 28840 86138 2 2 1.3 0.059 0.68 -0.93 D 1, Is 1745.26 28840 86138 4 2 0.65 0.015 0.34 -1.23 D 1, Is 1742.72 28840 86221 2 4 0.35 0.032 0.37 -1.20 D 1, Is

5 2p3 — 2 D° — 2 D 1243.3 19228 99663 10 10 4.6 0.11 4.4 0.03 D 1 2p2

(

1 D)3s' (5 uv)

1243.17 19224 99663 6 6 4.3 0.10 2.4 -0.22 D Is 1243.30 19233 99663 4 4 4.3 0.10 1.6 -0.40 D Is 1243.17 19224 99663 6 4 0.45 0.0070 0.17 -1.38 D Is 1243.31 19233 99663 4 6 0.30 0.010 0.17 -1.38 D Is

6 2p° _ 2J) (10 uv)

1411.94 28840 99663 6 10 0.52 0.026 0.72 -0.81 D 1

7 2s2p4 - 4 P - 4 S° 11602 88135 96752 12 4 0.0405 0.0273 12.5 -0.485 C 2

2s22p2

( 3 P)3p (12)

11564.8 88110 96752 6 4 0.0210 0.0280 6.4 -0.77 c 2, Is 11628.0 88153 96752 4 4 0.0130 0.0264 4.04 -0.98 c 2, Is 11656.0 88173 96752 2 4 0.0066 0.0267 2.05 -1.272 c 2, Is

8 2

p

3 - 1 Cjh o MQ

2p2

( 3P)3c?

1169.69 19224 104718 6 8 0.030 8.2 x 10-4 0.019 -2.31 D 1

9 2J)° _ 2p 1167.9 19228 104852 10 14 1.2 0.034 1.3 -0.46 D 1 (6 uv)

1167.45 19224 104883 6 8 1.1 0.030 0.69 -0.75 D 1 1168.54 19233 104811 4 6 1.3 0.040 0.61 -0.80 D 1, Is 1168.42 19224 104811 6 6 0.095 0.0019 0.045 -1.93 D 1, Is

10 1 Q

O <N Q 1164.0 19228 105135 10 10 0.47 0.0095 0.37 -1.02 D 1 (7 uv)

1163.88 19224 105144 6 6 0.43 0.0087 0.20 -1.28 D Is 1164.31 19233 105121 4 4 0.43 0.0087 0.13 -1.46 D Is 1164.31 19224 105121 6 4 0.048 6.5 x 10-4 0.015 -2.41 D Is 1163.87 19233 105144 4 6 0.032 9.7 X 10-4 0.015 -2.41 D Is

11 2p° _ 2p 1319.5 28840 104628 6 6 1.3 0.034 0.88 -0.69 D 1 (12 uv)

1319.72 28840 104615 4 4 1.1 0.029 0.50 -0.94 D 1, Is 1319.04 28840 104655 2 2 0.85 0.022 0.19 -1.35 D 1, Is 1319.04 28840 104655 4 2 0.42 0.0055 0.095 -1.66 D 1, Is 1319.72 28840 104615 2 4 0.22 0.011 0.10 -1.64 D 1, Is

50
N I. Allowed Transitions — Continued

No Transition

Array

Multiplet x(A) £i(cm"‘) Ek( cm ') gt gk /t*,(10H sec" 1 ) fu S(at.u.) log gf Accuracy

Source

12 2p° _ 2p

1316.29 28840 104811 4 6 0.025 9.6 X 10- 4 0.017 -2.42 D 1

13 2p° _ 2£) 1310.7 28840 105135 6 10 1.3 0.056 1.4 -0.48 D 1 (13 uv)

1310.54 28840 105144 4 6 1.3 0.050 0.87 -0.70 D Is 1310.97 28840 105121 2 4 1.1 0.057 0.49 -0.95 D Is 1310.97 28840 105121 4 4 0.23 0.0059 0.10 -1.63 D Is

14 2p3 — 2J)°_2p 1176.9 19228 104199 10 6 1.1 0.014 0.53 -0.86 D 1 2p2

( 3 P)4s

[1176.4] 19224 104227 6 4 0.95 0.013 0.31 -1.10 D 1, Is [1177.7] 19233 104142 4 2 1.3 0.014 0.21 -1.27 D 1 [1176.6] 19233 104227 4 4 0.11 0.0023 0.035 -2.04 D 1, Is

15 2p° 2p 1327.0 28840 104199 6 6 0.20 0.0053 0.14 -1.50 D 1 (11 uv)

1326.63 28840 104227 4 4 0.15 0.0040 0.069 -1.80 D 1, Is 1327.96 28840 104142 2 2 0.17 0.0045 0.039 -2.05 D 1, Is 1327.96 28840 104142 4 2 0.085 0.0011 0.020 -2.35 D 1, Is 1326.63 28840 104227 2 4 0.030 0.0016 0.014 -2.50 D 1, Is

16 2s2p4 - 4 p_4D

° 5349.0 88135 106825 12 20 0.00252 0.00180 0.380 -1.67 C 2

2s2 2p2

( 3 P)4p (13)

5328.70 88110 106871 6 8 0.00254 0.00144 0.152 -2.062 C 3n. Is 5356.77 88153 106816 4 6 0.00189 0.00122 0.086 -2.312 C 3n, Is 5372.66 88173 106780 2 4 0.00107 9.3 X 10-4 0.0328 -2.73 C 3n, Is [5344.4] 88110 106816 6 6 6.2 X 10-4 2.64 x 10-4 0.0279 -2.80 C 3n, Is [5367.1] 88153 106780 4 4 0.00118 5.1 X 10-4 0.0361 -2.69 c 3n, Is [5378.3] 88173 106761 2 2 0.00210 9.1 X 10-4 0.0323 -2.74 c 3n, Is [5354.7] 88110 106780 6 4 1.35 x 10-4 3.88 X 10-5 0.00410 -3.63 c 3n. Is [5372.5] 88153 106761 4 2 4.31 x 10-4 9.3 X 10-5 0.0066 -3.428 c 3n, Is

17 1 *0o 5294.9 88135 107016 12 12 0.00373 0.00157 0.328 -1.73 c 2

(14)

5281.18 88110 107039 6 6 0.00282 0.00118 0.123 -2.150 c 3n. Is 5305.0] 88153 106998 4 4 5.3 x 10-4 2.23 X 10-4 0.0156 -3.049 c 3n, Is 5314.8] 88173 106983 2 2 6.9 x 10-4 2.91 x 10-4 0.0102 -3.234 c 3n. Is 5292.9] 88110 106998 6 4 0.00167 4.68 x 10-4 0.0489 -2.55 c 3n, Is 5309.2] 88153 106983 4 2 0.00273 5.8 x lO"4 0.0403 -2.64 c 3n, Is 5293.5] 88153 107039 4 6 0.00113 7.1 X 10-4 0.0495 -2.55 c 3n. Is [5310.6] 88173 106998 2 4 0.00137 0.00116 0.0404 -2.64 c 3n. Is

18 4 P- 4 S° 5176.7 88135 107447 12 4 0.00427 5.7 X 10-4 0.117 -2.163 c 2

[5170.0] 88110 107447 6 4 0.00209 5.6 x 10-4 0.057 -2.475 c 3n, Is [5181.5] 88153 107447 4 4 0.00144 5.8 X 10-4 0.0395 -2.64 c 3n. Is [5186.9] 88173 107447 2 4 7.3 X 10-4 5.9 X 10-4 0.0201 -2.93 c 3n, Is

19 2p3 — 2J)°_ 2p 1100.7 19228 110082 10 6 0.33 0.0036 0.13 -1.44 D- 1 2p2

( 3P)5s

20 2p° _ 2p

[1231.7] 28840 110029 2 2 0.022 5.0 X 10-4 0.0041 -2.99 D 1, Is [1231.7] 28840 110029 4 2 0.011 1.3 x 10“4 0.0020 -3.30 D 1, Is

21 2p23s — •v 1 -u a

o 8691 .6 83337 94839 12 20 0.190 0.358 123 0.63 C 2

2p2

( 3 P)3p (1) 8680.27 83366 94883 6 8 0.191 0.287 49.2 0.236 C 2, Is 8683.40 83319 94832 4 6 0.133 0.226 25.8 -0.045 C 2, Is 8686.16 83286 94795 2 4 0.079 0.178 10.2 -0.448 C 2, Is 8718.84 83366 94832 6 6 0.054 0.062 10.6 -0.433 C 2, Is 8711.71 83319 94795 4 4 0.101 0.115 13.2 -0.337 C 2, Is 8703.26 83286 94772 2 2 0.171 0.194 11.1 -0.412 C 2, Is 8747.36 83366 94795 6 4 0.0079 0.0061 1.05 -1.438 C 2, Is 8728.91 83319 94772 4 2 0.0300 0.0171 1.97 -1.164 c 2, Is

51
N I. Allowed Transitions — Continued

No. Transition Multiplet MA) Ei( cm *) Ek(c m ’) S> gk /lA-j(10H sec ') fik S(at.u.) log sf Accu- Source

Array racy

22 4p 4p° 8211.8 83337 95511 12 12 0.228 0.231 75 0.443 C 2, 5

(2) 8216.32 83366 95533 6 6 0.160 0.162 26.3 -0.012 c 2n, Is 8210.71 83319 95495 4 4 0.0363 0.0367 3.97 -0.83 c 2n, Is 8200.36 83286 95477 2 2 0.0364 0.0367 1.98 -1.135 c 2 n, Is 8242.37 83366 95495 6 4 0.102 0.069 11.3 -0.381 c 2n. Is 8223.12 83319 95477 4 2 0.202 0.103 11.1 -0.387 c 2 n, Is 8184.85 83319 95533 4 6 0.063 0.096 10.3 -0.418 c 2 n, Is 8188.01 83286 95495 2 4 0.092 0.185 10.0 -0.431 c 2 n. Is

23 4p_4S

° 7452.2 83337 96752 12 4 0.318 0.088 26.0 0.025 c 2, 5

(3) 7468.31 83366 96752 6 4 0.161 0.089 13.2 -0.270 c 2 n, Is 7442.30 83319 96752 4 4 0.106 0.088 8.6 -0.454 c 2 n, Is 7423.64 83286 96752 2 4 0.052 0.086 4.21 -0.76 c 2 n. Is

24 2p _ 2J)° 9395.3 86193 96834 6 10 0.217 0.478 89 0.458 c 2

(7) 9392.79 86221 96864 4 6 0.218 0.432 53 0.237 c 2, Is 9386.81 86138 96788 2 4 0.183 0.482 29.8 -0.016 c 2, Is 9460.68 86221 96788 4 4 0.0334 0.0449 5.6 -0.75 c 2, Is

25 2p 2p° 8617.5 86193 97794 6 6 0.286 0.318 54 0.281 c 2

(8) 8629.24 86221 97806 4 4 0.238 0.266 30.2 0.027 c 2, Is 8590.01 86138 97770 2 2 0.190 0.210 11.9 -0.376 c 2, Is 8655.87 86221 97770 4 2 0.099 0.056 6.3 -0.65 c 2, Is 8567.74 86138 97806 2 4 0.0458 0.101 5.7 -0.70 c 2, Is

26 2p2

( 3 P)3s — 2p _ 2J)° 4106.8 86193 110536 6 10 0.041 0.017 1.4 -0.98 D 3n

2p(‘D)3p' (10)

4109.96 86221 110546 4 6 0.040 0.015 0.83 -1.21 D Is 4099.95 86138 110522 2 4 0.034 0.017 0.46 -1.47 D Is 4113.97 86221 110522 4 4 0.0068 0.0017 0.093 -2.16 D Is

27 2p2 3s' — 1 o Q 9047.6 99663 110713 10 14 0.272 0.467 139 0.669 B 2, 6, ca 2p2

(

1 D)3p'

9045.88 99663 110715 6 8 0.269 0.439 78.5 0.421 B 2 n, Is 9049.89 99663 110711 4 6 0.258 0.475 56.6 0.279 B 2 n. Is 9049.47 99663 110711 6 6 0.0180 0.0222 3.96 -0.876 B 2n. Is

28 2p2 3s- 4p _ 4J)° 4256.3 83337 106825 12 20 0.020 0.0089 1.5 -0.97 E 6

2p2

( 3 P)4p (4) 4253.28 83366 106871 6 8 0.020 0.0071 0.60 -1.37 E Is 4254.7 83319 106816 4 6 0.014 0.0057 0.32 -1.64 E Is 4254.7 83286 106780 2 4 0.0079 0.0043 0.12 -2.07 E Is [4263.2] 83366 106816 6 6 0.0061 0.0017 0.14 -2.00 E Is [4261.2] 83319 106780 4 4 0.010 0.0029 0.16 -1.94 E Is [4258.7] 83286 106761 2 2 0.016 0.0043 0.12 -2.07 E Is [4269.8] 83366 106780 6 4 9.8 X 10-4 1.8 x 10-4 0.015 -2.97 E Is [4264.7] 83319 106761 4 2 0.0033 4.5 x 10-4 0.025 -2.75 E Is

29 4p _ 4p° 4222.0 83337 107016 12 12 0.073 0.020 3.3 -0.63 D 3n

(5) 4223.04 83366 107039 6 6 0.051 0.014 1.1 -1.09 D Is 4222.12 83319 106998 4 4 0.0098 0.0026 0.15 -1.98 D Is 4218.87 83286 106983 2 2 0.012 0.0033 0.091 -2.18 D Is 4230.35 83366 106998 6 4 0.033 0.0059 0.49 -1.45 D Is 4224.74 83319 106983 4 2 0.061 0.0082 0.45 -1.49 D Is 4214.73 83319 107039 4 6 0.022 0.0088 0.49 -1.45 D Is 4215.92 83286 106998 2 4 0.031 0.016 0.45 -1.49 D Is

30 4P - 4 S° 4146.3 83337 107447 12 4 0.025 0.0021 0.35 -1.59 D 3n

(6) 4151.46 83366 107447 6 4 0.013 0.0023 0.19 -1.87 D 3n. Is 4143.42 83319 107447 4 4 0.0078 0.0020 0.11 -2.09 D 3n. Is 4137.63 83286 107447 2 4 0.0039 0.0020 0.055 -2.40 D 3n. Is

52
N I. Allowed Transitions — Continued

No. Transition

Array

Multiplet \(A) fitcnr 1 ) Ek( cm ') gi gk ,4 a ,( 10" sec ') fk S(at.u.) log gf Accuracy

Source

31 2p 2§° 4928.2 86193 106479 6 2 0.0234 0.00285 0.277 - 1.768 B 2, 4

(9) 4935.03 86221 106479 4 2 0.0158 0.00289 0.188 -1.937 B 4n, Is 4914.90 86138 106479 2 2 0.00759 0.00275 0.0889 -2.260 B 4n, Is

32 2p2

(

:i P)3p — 2p° _ 2g 5408.4 97794 116279 6 2 0.0111 0.00162 0.173 -2.013 C 2 2p2

(

1 S)3s"

5411.88 97806 116279 4 2 0.0075 0.00164 0.117 -2.183 C 2, Is 5401.45 97770 116279 2 2 0.00369 0.00161 0.057 -2.491 C 2, Is

33 2p23p- 2§° _ 2p 9050.4 93582 104628 2 6 0.256 0.945 56.3 0.276 B 2, 6, ca 2p2

( 3P)3d (15)

9060.72 93582 104615 2 4 0.257 0.634 37.8 0.103 B 2 n, Is 9028.92 93582 104655 2 2 0.255 0.311 18.5 -0.206 B 2 n, Is

34 4 D°- 4 F 10117 94839 104721 20 28 0.373 0.802 534 1.205 B 2, 6, ca

(18)

10114.6 94883 104767 8 10 0.374 0.717 191 0.759 B Is 10112.5 94832 104718 6 8 0.321 0.656 131 0.595 B Is 10108.9 94795 104684 4 6 0.281 0.646 86.0 0.412 B Is 10105.1 94772 104665 2 4 0.262 0.803 53.4 0.206 B Is 10164.8 94883 104718 8 8 0.0523 0.0811 21.7 -0.188 B Is 10147.3 94832 104684 6 6 0.0898 0.139 27.8 -0.080 B Is 10128.3 94795 104665 4 4 0.104 0.160 21.4 -0.193 B Is 10200.0 94883 104684 8 6 0.00353 0.00413 1.11 -1.481 B Is 10166.8 94832 104665 6 4 0.00737 0.00762 1.53 -1.340 B Is

35 1Q

O Q 9829.2 94839 105010 20 20 0.0992 0.144 93.0 0.458 B 2, 6, ca

(19)

9863.33 94883 105020 8 8 0.101 0.147 38.1 0.069 B 2 n, Is 9822.75 94832 105011 6 6 0.0542 0.0783 15.2 -0.328 B 2n 9798.57 94795 104998 4 4 0.0346 0.0498 6.42 -0.701 B 2 n 9788.30 94772 104987 2 2 0.0310 0.0445 2.87 -1.050 B 2 n, Is 9872.16 94883 105011 8 6 0.0222 0.0243 6.33 -0.711 B 2 n. Is 9834.62 94832 104998 6 4 0.0461 0.0445 8.65 -0.573 B 2 n 9810.02 94795 104987 4 2 0.0415 0.0300 3.87 -0.921 B 2 n, Is 9814.03 94832 105020 6 8 0.0118 0.0227 4.41 -0.865 B 2 n. Is 9786.79 94795 105011 4 6 0.0144 0.0311 4.01 -0.905 B 2n, Is 9776.90 94772 104998 2 4 0.0177 0.0506 3.26 -0.995 B 2n

36 rf*. 0 1

10884.6 95533 104718 6 8 0.00141 0.00335 0.72 -1.70 C 2 10879.2 95495 104684 4 6 0.00160 0.00426 0.61 -1.77 C 2

37 4p° _ 2p

10693.2 95533 104883 6 8 0.00402 0.0092 1.94 -1.259 C 2

10730.5 95495 104811 4 6 0.0170 0.0440 6.2 -0.75 C 2 10775.0 95533 104811 6 6 0.00421 0.0073 1.56 -1.357 C 2

38 4p° 4p 10708 95511 104847 12 12 0.126 0.216 91.5 0.414 B 2, 6, ca

10757.9 95533 104825 6 6 0.0868 0.151 32.0 -0.044 B Is [10675] 95495 104860 4 4 0.0169 0.0289 4.06 -0.937 B Is 10623.2 95477 104886 2 2 0.0215 0.0363 2.54 -1.139 B Is 10718.0 95533 104860 6 4 0.0564 0.0647 13.7 -0.411 B Is 10644.0 95495 104886 4 2 0.107 0.0906 12.7 -0.441 B Is 10713.6 95495 104825 4 6 0.0376 0.0971 13.7 -0.411 B Is 10653.0 95477 104860 2 4 0.0532 0.181 12.7 -0.441 B Is

39 4p° 4J) 10525 95511 105010 12 20 0.248 0.688 286 0.917 B 2, 6, ca

(28)

10539.6 95533 105020 6 8 0.242 0.538 112 0.509 B 2n. Is 10507.0 95495 105011 4 6 0.132 0.327 45.2 0.116 B 2n 10500.3 95477 104998 2 4 0.0652 0.216 14.9 -0.366 B 2n 10549.6 95533 105011 6 6 0.126 0.210 43.8 0.101 B 2n

53
N I. Allowed Transitions — Continued

No Transition

Array

Multiplet mA) Ei( cm ') Ek( cm *) gi gk yifci(108 sec ') fik S(at.u.) log gf Accuracy

Source

39 (con.) 10520.6 95495 104998 4 4 0.162 0.269 37.2 0.031 B 2n

10513.4 95477 104987 2 2 0.174 0.289 20.0 -0.238 B 2 n

10563.3 95533 104998 6 4 0.0369 0.0411 8.58 -0.608 B 2n

10533.8 95495 104987 4 2 0.0405 0.0337 4.67 -0.871 B 2 n. Is

40 4 So_ 4 p 12350 96752 104847 4 12 0.124 0.85 138 0.53 C 6, ca

(34)

[12384] 96752 104825 4 6 0.123 0.423 69 0.229 C Is [12330] 96752 104860 4 4 0.124 0.283 46.0 0.054 C Is [12291] 96752 104886 4 2 0.125 0.142 23.0 -0.245 C Is

41 2J)°_2P 12469 96834 104852 10 14 0.216 0.71 290 0.85 c 6, ca

(36)

12467.8 96864 104883 6 8 0.217 0.67 166 0.61 c Is 12461.2 96788 104811 4 6 0.202 0.71 116 0.451 c Is 12582.3 96864 104811 6 6 0.0141 0.0334 8.3 -0.70 c Is

42 2 D° — 2 D 12043 96834 105135 10 10 0.060 0.130 52 0.114 c 6, ca

(37)

12074.1 96864 105144 6 6 0.055 0.121 28.8 -0.140 c Is 11997.9 96788 105121 4 4 0.054 0.117 18.5 -0.329 c Is 12107.4 96864 105121 6 4 0.0059 0.0086 2.06 -1.287 c Is [11964] 96788 105144 4 6 0.00406 0.0131 2.06 -1.282 c Is

43 2p2

( 3 P)3p — 2p° 2g 4389.1 97794 120572 6 2 0.0153 0.00148 0.128 -2.053 c 2

2p2

(

1 D)3<f

[4391.3] 97806 120572 4 2 0.0102 0.00147 0.085 -2.231 c 2, Is [4384.4] 97770 120572 2 2 0.0052 0.00151 0.0435 -2.52 c 2, Is

44 2p23p' - 2JT° _ 2Q 10595 110713 120149 14 18 0.338 0.731 357 1.010 B 2, 6, ca 2p2(‘D)3d'

10597.0 110715 120149 8 10 0.337 0.709 198 0.754 B Is 10591.9 110711 120150 6 8 0.326 0.731 153 0.642 B Is [10596] 110715 120150 8 8 0.0121 0.0204 5.68 -0.788 B Is

45 2p23p — 4J)°_4p 11290 94839 103694 20 12 0.147 0.168 125 0.527 c + 2, 6, ca 2p2

( 3 P)4s (17)

11291.7 94883 103737 8 6 0.117 0.168 50.0 0.129 c + Is 11313.9 94832 103668 6 4 0.0920 0.118 26.3 -0.151 c + Is 11323.2 94795 103618 4 2 0.0726 0.0697 10.4 -0.554 c + Is 11227.1 94832 103737 6 6 0.0270 0.0510 11.3 -0.515 c + Is 11266.2 94795 103668 4 4 0.475 0.0903 13.4 -0.442 c + Is 11294.2 94772 103618 2 2 0.0731 0.140 10.4 -0.553 c + Is 11180.1 94795 103737 4 6 0.00302 0.00849 1.25 -1.469 c + Is 11237.6 94772 103668 2 4 0.00746 0.0282 2.09 -1.248 c + Is

46 4p° 4p 12217 95511 103694 12 12 0.076 0.171 83 0.312 c 6, ca

(27)

12186.9 95533 103737 6 6 0.054 0.119 28.7 -0.146 c Is 12232.9 95495 103668 4 4 0.0101 0.0226 3.64 -1.044 c Is [12280] 95477 103618 2 2 0.0125 0.0282 2.28 -1.249 c Is 12288.0 95533 103668 6 4 0.0336 0.051 12.3 -0.52 c Is [12307] 95495 103618 4 2 0.062 0.070 11.4 -0.55 c Is 12128.6 95495 103737 4 6 0.0233 0.077 12.3 -0.51 c Is 12203.4 95477 103668 2 4 0.0318 0.142 11.4 -0.55 c Is

47 2p2 3p- 4J)° 4p 6644.0 94839 109886 20 12 0.0389 0.0154 6.8 -0.51 c 6, ca 2p2

( 3 P)5s (20)

6644.96 94883 109928 8 6 0.0311 0.0154 2.70 -0.91 c Is 6653.46 94832 109858 6 4 0.0244 0.0108 1.42 -1.188 c Is 6656.51 94795 109814 4 2 0.0193 0.0064 0.56 -1.59 c Is 6622.54 94832 109928 6 6 0.0071 0.00465 0.61 -1.55 c Is 6636.94 94795 109858 4 4 0.0125 0.0083 0.72 -1.481 c Is 6646.51 94772 109814 2 2 0.0194 0.0128 0.56 -1.59 c Is [6606.3] 94795 109928 4 6 7.9 X 10-4 7.8 X 10~4 0.068 -2.51 c Is [6626.8] 94772 109858 2 4 0.00197 0.00259 0.113 -2.286 c Is

54
N I. Allowed Transitions — Continued

No. Transition

Array

Multiplet a(A) 1 hj S Ek(c m ') gi gk A,,(\ 0

k sec"') fx S(at.u.) log gf Accuracy Source

48 TJ0 1 •u 6954.6 95511 109886 12 12 0.0212 0.0154 4.22 -0.73 C 6, ca

(29)

6945.22 95533 109928 6 6 0.0149 0.0108 1.48 - 1.189 C Is [6960.4] 95495 109858 4 4 0.00281 0.00204 0.187 -2.088 C Is [6973.0] 95477 109814 2 2 0.00350 0.00255 0.117 -2.293 C Is 6979.10 95533 109858 6 4 0.0094 0.00459 0.63 -1.56 c Is [6981.8] 95495 109814 4 2 0.0174 0.0064 0.59 -1.59 c Is 6926.90 95495 109928 4 6 0.0064 0.0069 0.63 -1.56 c Is [6951.7] 95477 109858 2 4 0.0088 0.0128 0.59 -1.59 c Is

49 2p23p — 2 S° — 2 p 5200.5 93582 112806 2 6 0.023 0.028 0.96 -1.25 D 3n 2p2

( 3 P)5d

[5201.8] 93582 112801 2 4 0.023 0.019 0.64 - 1.43 D Is [5197.8] 93582 112816 2 2 0.023 0.0094 0.32 -1.73 D Is

50 2p23p — 4p° _ 4p 5836.4 95511 112640 12 12 0.0092 0.00468 1.08 -1.250 C 6, ca

2p2

( 3 P)6s (32)

5829.53 95533 112683 6 6 0.0064 0.00328 0.378 -1.71 C Is 5841.01 95495 112611 4 4 0.00122 6.2 X 10~4 0.0480 -2.60 C Is [5850.1] 95477 112566 2 2 0.00152 7.8 X lO"4 0.0300 -2.81 C Is 5854.16 95511 112611 6 4 0.00409 0.00140 0.162 -2.075 C Is [5856.3] 95495 112566 4 2 0.0076 0.00195 0.150 -2.109 C Is 5816.48 95495 112683 4 6 0.00278 0.00212 0.162 -2.073 C Is [5834.7] 95477 112611 2 4 0.00383 0.00390 0.150 -2.107 C Is

Forbidden Transitions

For this ion we have performed the numerical calculations by utilizing Ufford and Gilmour’s

[1] values for the parameters £ and r) and empirical term intervals, and by employing the general

expressions of Shortley, Aller, Baker, and Menzel [2] for the line strengths in the p

3 configuration

(see also general introduction). For the electric quadrupole fines we have employed Garstang’s

[3] estimate of the quadrupole integral sq

. For the 2 D° — 2 D° transition a difference between the

transition probability quoted by Garstang [4] and the tabulated value will be noticed. This is due to a revised experimental value for the term interval as given by Bowen [5].

References

[1] Ufford, C. W., and Gilmour, R. M., Astrophys. J. Ill, 580—581 (1950).

[2] Shortley, G. H., Aller, L. H., Baker, J. G., and Menzel, D. H., Astrophys. J. 93, 178-184 (1941).

[3] Garstang, R. H., Astrophys. J. 115, 506-508 (1952).

[4] Garstang, R. H., “The Airglow and the Aurora,” p. 324 (ed. Armstrong and Dalgarno, Pergamon Press, New York, 1956).

[5] Bowen, I. S., Astrophys. J. 121, 306 (1955).

N I. Forbidden Transitions

No. Transition Multiplet mA) Ei(cm ! ) Ek( cm *) gi gk Type of Aki( sec *) S(at.u.) Accu- Source

Array Transition racy

1 2p3 — 2p3 4 S° — 2 D°

(1 F)

5200.7 0 19223.9 4 6 m 7.4 X 10-7 2.32 X 10-« C 1 5200.7 0 19223.9 4 6 e 6.2 X 10"6 8.4 X 10-5 D 1,2

5198.5 0 19233.1 4 4 m 1.23 x 10- 5 2.55 X lO" 7 C 1 5198.5 0 19233.1 4 4 e 4.0 X 10-6 3.6 X 10-5 D 1, 2

2 4g° 2p°

(2 F)

3466.4 0 28840 4 4 m 0.0062 3.82 X 10"5 C 1 3466.4 0 28840 4 4 e 3.4 X 10-» 4.1 X 10~ 8 D 1, 2 3466.4 0 28840 4 2 m 0.00247 7.6 x lO"6 C 1 3466.4 0 28840 4 2 e 1.1 x 10" 7 6.4 X 10~ 8 D 1, 2

55
IV I. Forbidden Transitions — Continued

No. Transition

Array

Multiplet X(A) Ei( cm *) Ek( cm *) gi gk

Type of

Transition

/4fci(sec -1

) S(at.u.) Accuracy

Source

3 2 D° — 2 D°

[10.9 X 106

] 19223.9 19233.1 6 4 m 1.25 x 10-8 2.40 B 1 [10.9 X 106

] 19223.9 19233.1 6 4 e 2.4 X 10-22 8.9 x lO"5 D 1,2

4 2J)° _ 2p°

(3 F)

10395.4 19223.9 28840 6 4 m 9.3 X 10-4 1.55 X 10"4 C 1 10395.4 19223.9 28840 6 4 e 0.054 15.6 c 1,2

10395.4 19223.9 28840 6 2 e 0.0308 4.45 c 1,2

10404.1 19233.1 28840 4 4 m 0.00165 2.75 X lO"4 c 1 10404.1 19233.1 28840 4 4 e 0.0230 6.7 c 1,2

10404.1 19233.1 28840 4 2 m 0.00103 8.6 x 10~5 c 1 10404.1 19233.1 28840 4 2 e 0.0460 6.7 c 1,2

Nil

Ground State Is2 2s2 2p

2 3P0

Ionization Potential 29.593 eV = 238751.1 cm-1

Allowed Transitions

List of tabulated lines:

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

529.343 10 745.836 6 2493.94 47

529.405 10 746.976 8 2496.88 47

529.481 10 775.957 4 2520.27 46

529.627 10 915.603 2 2520.85 46

529.713 10 915.955 2 2522.27 46

529.860 10 916.004 2 2522.46 46

533.504 9 916.700 2 2524.49 46

533.51 9 1083.98 1 2526.17 46

533.577 9 1084.57 1 2709.82 49

533.644 9 1085.5 1 2799.20 48

533.726 9 1085.54 1 3006.86 38

533.809 9 1085.70 1 3023.80 50

572.07 13 1886.82 24 3311.4 39

574.650 12 2206.10 44 3318.14 39

582.150 11 2316.46 45 3324.58 39

635.180 14 2316.65 45 3328.79 39

644.621 3 2317.01 45 3330.30 39

644.825 3 2319.94 45 3331.32 39

645.167 3 2321.65 45 3437.16 20

660.280 5 2325.16 45 3593.60 40

671.014 7 2461.30 51 3609.09 40

671.391 7 2488.12 47 3615.88 40

671.629 7 2488.75 47 3829.80 41

671.770 7 2490.37 47 3838.39 41

671.999 7 2493.16 47 3842.20 41

56
List of tabulated lines — Continued

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

3847.38 41 5012.03 22 5941.67 31

3855.08 41 5016.39 27 5952.39 31

3856.07 41 5023.11 22 5954.28 60

3919.01 26 5025.67 27 5960.93 31

3995.00 19 5040.76 27 6114.6 52

4026.08 62 5045.10 16 6136.89 52

4040.9 61 5104.45 43 6150.76 52

4124.08 23 5168.24 37 6167.82 52

4133.67 23 5170.08 37 6170.16 52

4145.76 23 5171.30 37 6173.40 52

4176.16 63 5171.46 37 6242.52 59

4227.75 42 5172.32 35 6284.30 34

4239.4 64 5173.37 35 6318.80 55

4417.9 65 5174.46 37 6328.39 55

4427.97 65 5175.89 35 6340.57 55

4431.82 65 5176.56 37 6346.86 55

4432.74 65 5177.06 35 6356.55 55

4433.48 65 5179.50 35 6357.57 55

4441.99 65 5179.50 37 6482.07 18

4447.03 25 5180.34 35 6491.79 54

4459.96 29 5183.21 37 6504.61 54

4465.54 29 5184.96 35 6522.39 54

4475.8 29 5186.17 37 6532.55 54

4477.74 29 5190.42 35 6544.16 54

4488.15 29 5191.97 35 6545.53 54

4507.56 29 5199.50 35 6554.47 54

4530.40 67 5313.43 36 6610.58 33

4552.54 66 5320.96 36 6629.80 53

4601.48 17 5327.45 36 6809.99 58

4607.16 17 5338.66 36 6834.09 58

4613.87 17 5340.20 36 6847.24 58

4621.39 17 5351.21 36 6941.75 57

4630.54 17 5452.12 32 6966.81 57

4643.09 17 5454.26 32 6975.64 57

4677.93 68 5462.62 32 7003.0 57

4774.22 28 5478.13 32 7013.98 57

4779.71 28 5480.10 32 7014.73 57

4781.17 28 5495.70 32 7138.87 56

4788.13 28 5526.26 21 7188.20 56

4793.66 28 5530.27 21 7214.6 56

4803.27 28 5535.39 21 7215.06 56

4810.29 28 5540.16 21 7241.8 56

4987.38 30 5543.49 21 7256.53 56

4991.22 22 5551.95 21

4994.36 22 5552.54 21

4994.36 30 5565.30 21

4997.23 22 5666.64 15

5001.13 27 5676.02 15

5001.47 27 5679.56 15

5002.69 16 5686.21 15

5005.14 22 5710.76 15

5005.14 27 5730.67 15

5007.32 30 5927.82 31

5010.62 16 5931.79 31

5011.24 22 5940.25 31
Data for the vacuum ultraviolet region of the spectrum are available from calculations of

Bolotin et al. [1] and Kelly [2]. Bolotin et al. employ a “double configuration” approximation,

i.e., they include to a first approximation the effects of configuration interaction which are expected

to be drastic for these transitions. Kelly’s calculations, in which these effects are neglected, are only used for some vacuum uv transitions for which configuration interaction is expected to be

less pronounced. Nevertheless, his results may be quite uncertain. For higher excited lines,

mainly in the visible, experimental work with a high current stabilized arc by Mastrup and Wiese

[3] compares very well with approximate self-consistent field calculations by Kelly [4] and the

Coulomb approximation. All these methods have been equally weighted in arriving at averaged

values. However, the Coulomb approximation shows strong cancellation effects for 3s — 4p and

3p — 4d transitions and is not used there. Kelly’s calculations, which seem to be less affected as judged from his fairly high ratios between the positive and negative contributions to the transition integrals, are exclusively used in these cases. For some multiplets with high azimuthal

quantum numbers in the 3d— 4/ array (D-F and F-G) only multiplet values and no line values are

listed, since intensity measurements by Eriksson [5] indicate considerable deviations from LS

coupling and a transition to pair coupling.

References

[1] Bolotin, A. B., Levinson, I. B., and Levin, L. I., Soviet Phys.— JETP 2, 391-395 (1956).

[2] Kelly, P. S., Astrophys. J. 140, 1247-1268 (1964).

[3] Mastrup, F., and Wiese, W., Z. Astrophys. 44, 259-279 (1958).

[4] Kelly, P. S., J. Quant. Spectrosc. Radiat. Transfer 4, 117-148 (1964).

[5] Eriksson, K. B. S., Arkiv Fysik 13 , 303-329 (1958).

Nil. Allowed Transitions

No. Transition

Array

Multiplet X(A) Ej( cm ') Fa (cm *) gi gk /C-iflO8 sec ') fk S(at.u.) log gf Accuracy

Source

1 2s22p2 —2s2p3 3p _ 3jy> 1085.1 89.3 92245 9 15 5.7 0.17 5.4 0.18 E 1 (luv)

1085.70 131.3 92238 5 7 5.7 0.14 2.5 -0.15 E Is 1084.57 49.1 92251 3 5 4.3 0.13 1.4 -0.42 E Is 1083.98 0.0 92253 1 3 3.2 0.17 0.60 -0.77 E Is 1085.54 131.3 92251 5 5 1.4 0.025 0.45 -0.90 E Is 1084.57 49.1 92253 3 3 2.4 0.042 0.45 -0.90 E Is [1085.5] 131.3 92253 5 3 0.16 0.0017 0.030 -2.07 E Is

2 3p _ 3p° 916.34 89.3 109219 9 9 18 0.22 6.0 0.30 E 1 (2uv)

916.700 131.3 109218 5 5 13 0.17 2.5 -0.08 E Is 916.004 49.1 109218 3 3 4.4 0.055 0.50 -0.78 E Is 916.700 131.3 109218 5 3 7.3 0.055 0.84 -0.56 E Is 915.955 49.1 109225 3 1 18 0.074 0.67 -0.65 E Is 916.004 49.1 109218 3 5 4.4 0.093 0.84 -0.56 E Is 915.603 0.0 109218 1 3 5.9 0.22 0.67 -0.65 E Is

3

CO 1 CO c/3 o 644.99 89.3 155130 9 3 110 0.23 4.4 0.32 E 1 (4uv)

645.167 131.3 155130 5 3 62 0.23 2.4 0.06 E Is 644.825 49.1 155130 3 3 37 0.23 1.5 -0.16 E Is 644.621 0.0 155130 1 3 12 0.23 0.49 -0.64 E Is

4 6 i 6o 775.957 15316 144189 5 5 49 0.45 5.7 0.35 E 1 (7uv)

5

i D -ip° 660.280 15316 166766 5 3 77 0.30 3.3 0.18 E 1 (9uv)

6

0 CO 1CL 745.836 32687 166766 1 3 16 0.40 0.98 -0.40 E 1 (12uv)

58
N II. Allowed Transitions — Continued

Transition

Array

Multiplot A( A) £i(cirr') EiAcm ') g>

2p

2 - 3p _ 3p° 671.48 89.3 149013 9

2p(2 P°)3s (3uv)

671.391 131.3 149077 5 671.629 49.1 148941 3

671.999 131.3 148941 5 671.770 49.1 148909 3

671.014 49.1 149077 3

671.391 0.0 148941 1

>D — ‘P

0 746.976 15316 149189 5

(8uv)

2

p

2 - 3p 3£)° 533.67 89.3 187472 9

2p(2 P°)3d (5uv)

533.726 131.3 187493 5 533.577 49.1 187462 3

533.504 0.0 187438 1 533.809 131.3 187462 5

533.644 49.1 187438 3

[533.51] 0.0 187438 5

3p _ 3p° 529.68 89.3 188884 9

(6uv)

529.860 131.3 188858 5 529.481 49.1 188910 3

529.713 131.3 188910 5

529.405 49.1 188938 3

529.627 49.1 188858 3

529.343 0.0 188910 1 6 i 6o 582.150 15316 187092 5 (10uv)

6 1 o 574.650 15316 189336 5

(1 luv)

0 Q 1ft* [572.07] 15316 190121 5

0 up 1ft* 635.180 32687 190121 1 (13uv)

2p3s — 3p° _ 3£) 5679.4 149013 166616 9

2p(2 P°)3p (3) 5679.56 149077 166679 5 5666.64 148941 166583 3

5676.02 148909 166522 1 5710.76 149077 166583 5 5686.21 148941 166522 3

5730.67 149077 166522 5

3p° _ 3g 5028.8 149013 168893 9

(4) 5045.10 149077 168893 5 5010.62 148941 168893 3

5002.69 148909 168893 1

3p° 3p 4623.2 149013 170637 9

(5) 4630.54 149077 170667 5 4613.87 148941 170609 3

4643.09 149077 170609 5 4621.39 148941 170573 3

4601.48 148941 170667 3

4607.16 148909 170609 1

Aki(U)H sec-') //a S(at.u.) log gf Accuracy Source

13 0.089 1.8 -0.10 E 2

9.9 0.067 0.74 -0.48 E Is 3.3 0.022 0.15 -1.18 E Is 5.5 0.022 0.25 -0.95 E Is 13 0.030 0.20 -1.05 E Is 3.3 0.037 0.25 - 0.95 E Is 4.4 0.89 0.20 -1.05 E Is

20 0.10 1.2 - 0.30 E 2

36 0.26 4.1 0.37 D- 2

36 0.22 1.9 0.04 D- Is 27 0.19 1.0 -0.23 D- Is 20 0.26 0.45 -0.59 D- Is 9.1 0.039 0.34 -0.71 D- Is 15 0.065 0.34 -0.71 D- Is 1.0 0.0026 0.023 -1.89 D- Is

20 0.082 1.3 -0.13 D- 2

15 0.062 0.54 -0.51 D- Is 4.9 0.020 0.11 -1.21 D- Is 8.1 0.021 0.18 -0.99 D- Is 20 0.027 0.14 -1.09 D- Is 4.9 0.034 0.18 -0.99 D- Is 6.5 0.082 0.14 -1.09 D- Is

13 0.064 0.61 -0.50 D- 2

35 0.24 2.3 0.08 D- 2

0.97 0.0029 0.0270 -1.84 D- 2

18 0.32 0.68 -0.49 D- 2

0.56 0.452 76 0.61 C 3, 4, ca

0.56 0.380 35.5 0.278 C Is 0.423 0.339 19.0 0.008 C Is 0.310 0.450 8.4 -0.347 C Is 0.137 0.067 6.3 -0.475 C Is 0.231 0.112 6.3 -0.473 C Is 0.0152 0.00448 0.423 -1.65 C Is

0.76 0.097 14.4 -0.061 C 3, 4, ca

0.410 0.094 7.8 - 0.328 C 3n 0.268 0.101 5.0 -0.52 C 3n 0.085 0.095 1.57 -1.021 C 3n

1.05 0.337 46.1 0.481 C 3, 4, ca

0.84 0.269 20.5 0.129 C 3n 0.196 0.063 2.85 -0.73 C 3n 0.466 0.090 6.9 -0.345 C 3n 0.90 0.096 4.37 -0.54 C 3n 0.270 0.143 6.5 - 0.368 C 3n 0.340 0.325 4.93 -0.488 C 3n

9

5

3

3

15

3

3

15

75

3

5

3

3

9

5

3

3

15

3

5

7

3

3

15

75

3

5

3

3

3

3

3

3

9

53

3

15

3

59
N II. Allowed Transitions — Continued

No. Transition

Array

Multiplet X(A) Ei( cm ') ftlcrn ') gi gk /4a-;( 108 sec *) fik S(at.u.) log gf Accuracy

Source

18 ip°_ ip 6482.07 149189 164612 3 3 0.365 0.230 14.7 -0.162 c 4, ca

(8)

19 0 1 6 3995.00 149189 174213 3 5 1.58 0.63 24.8 0.276 c 4, ca

(12)

20

c 1r> o

Oh 3437.16 149189 178274 3 1 2.40 0.142 4.82 -0.371 c 4, ca

(13)

21 2s2p23s — 5 P _ 5 D

° 5537.4 205677 223731 15 25 0.56 0.432 118 0.81 c ca

2s2p2

(4 P)3p (63)

5535.39 205726 223787 7 9 0.56 0.334 42.6 0.368 c Is 5530.27 205656 223733 5 7 0.377 0.242 22.0 0.083 c Is 5526.26 205600 223690 3 5 0.198 0.151 8.3 -0.343 c Is 5551.95 205726 223733 7 7 0.187 0.086 11.0 -0.219 c Is 5543.49 205656 223690 5 5 0.327 0.151 13.8 -0.123 c Is 5535.39 205600 223660 3 3 0.422 0.194 10.6 -0.235 c Is 5565.30 205726 223690 7 5 0.0370 0.0123 1.57 -1.066 c Is 5552.54 205656 223660 5 3 0.140 0.0387 3.54 -0.71 c Is 5540.16 205600 223645 3 1 0.56 0.086 4.71 -0.59 c Is

22 cp ti 1 CP T)O 5006.9 205677 225644 15 15 0.77 0.291 72 0.64 c ca

(64)

5012.03 205726 225673 7 7 0.51 0.194 22.4 0.132 c Is 5005.14 205656 225629 5 5 0.064 0.0242 2.00 -0.92 c Is 4997.23 205600 225605 3 3 0.194 0.073 3.59 -0.66 c Is 5023.11 205726 225629 7 5 0.358 0.097 11.2 -0.170 c Is 5011.24 205656 225605 5 3 0.58 0.131 10.8 -0.185 c Is 4994.36 205656 225673 5 7 0.260 0.136 11.2 -0.170 c Is 4991.22 205600 225629 3 5 0.351 0.218 10.8 -0.184 c Is

23 5p_5S

° 4137.4 205677 229840 15 5 1.37 0.117 24.0 0.244 c ca

(65)

4145.76 205726 229840 7 5 0.64 0.117 11.2 -0.087 c Is 4133.67 205656 229840 5 5 0.458 0.117 8.0 -0.232 c Is 4124.08 205600 229840 3 5 0.276 0.117 4.78 -0.453 c Is

24 2p3s — *50 1 ^5 1886.82 149189 202170 3 3 0.52 0.028 0.52 -1.08 D 4

2p(2 P°)4p (14uv)

25 2p3p — *0 1 6o 4447.03 164612 187092 3 5 1.30 0.642 28.2 0.285 c + 3, 4, ca

2p(2 P°)3d (15)

26 1 O 3919.01 164612 190121 3 3 1.00 0.231 8.93 -0.160 c + 3, 4, ca

(17)

27 3J) _ 3p° 5004.5 166616 186593 15 21 1.22 0.639 158 0.982 c + 3, 4, ca

(19)

5005.14 166679 186653 7 9 1.22 0.588 67.8 0.614 c + Is 5001.47 166583 186572 5 7 1.08 0.568 46.8 0.454 c + Is 5001.13 166522 186512 3 5 1.02 0.640 31.6

‘ 0.283 c + Is 5025.67 166679 186572 7 7 0.134 0.0506 5.86 -0.451 c + Is 5016.39 166583 186512 5 5 0.188 0.0710 5.86 -0.450 c + Is 5040.76 166679 186512 7 5 0.00525 0.00143 0.166 -1.999 c + Is

28 3 D - 3 D° 4793.5 166616 187472 15 15 0.356 0.123 29.0 0.264 c + 3, 4, ca

(20)

4803.27 166679 187493 7 7 0.313 0.108 12.0 -0.120 c + Is 4788.13 166583 187462 5 5 0.248 0.0854 6.73 -0.370 c + Is 4779.71 166522 187438 3 3 0.269 0.0921 4.35 -0.558 c + Is 4810.29 166679 187462 7 5 0.0550 0.0136 1.51 -1.021 c + Is 4793.66 166583 187438 5 3 0.0889 0.0184 1.45 - 1.037 c + Is 4781.17 166583 187493 5 7 0.0400 0.0192 1.51 -1.018 c + Is 4774.22 166522 187462 3 5 0.0540 0.0308 1.45 - 1.035 c + Is

60
N II. Allowed Transitions — Continued

No. Transition Multiplet mA) £;(cm-') Ek(cm ') gi gk /!/,-/( 10H sec"') fk S(at.u.) log gf Accu- Source

Array racy

29 3£)_;ip° 4489.4 166616 188884 15 9 0.0460 0.0083 1.85 -0.90 c 4, ca

(21)

4507.56 166679 188858 7 5 0.0381 0.0083 0.86 -1.237 c Is 4477.74 166583 188910 5 3 0.0348 0.0063 0.463 - 1.50 c Is 4459.96 166522 188938 3 1 0.0468 0.00465 0.205 -1.86 c Is 4488.15 166583 188858 5 5 0.0069 0.00208 0.154 -1.98 c Is 4465.54 166522 188910 3 3 0.0117 0.00349 0.154 -1.98 c Is [4475.8] 166522 188858 3 5 4.65 X lO" 4 2.33 X 10-4 0.0103 -3.156 c Is

30 3S- 3P° 5000.8 168893 188884 3 9 0.75 0.84 41.4 0.401 c 3, 4, ca

(24)

5007.32 168893 188858 3 5 0.77 0.483 23.9 0.161 c 3n

4994.36 168893 188910 3 3 0.74 0.276 13.6 -0.082 c 3n

4987.38 168893 188938 3 1 0.63 0.078 3.83 -0.63 c 3n

31 3p _ 3£)° 5938.5 170637 187472 9 15 0.565 0.498 87.6 0.651 c + 3, 4, ca

(28)

5941.67 170667 187493 5 7 0.564 0.418 40.9 0.320 c + Is 5931.79 170609 187462 3 5 0.425 0.374 21.9 0.050 c + Is 5927.82 170573 187438 1 3 0.315 0.498 9.72 -0.303 c + Is 5952.39 170667 187462 5 5 0.140 0.0745 7.30 -0.429 c + Is 5940.25 170609 187438 3 3 0.235 0.124 7.30 -0.428 c + Is 5960.93 170667 187438 5 3 0.0155 0.00496 0.487 -1.605 c + Is

32 3p _ 3p° 5478.8 170637 188884 9 9 0.400 0.180 29.2 0.209 c 4, ca

(29)

5495.70 170667 188858 5 5 0.298 0.135 12.2 -0.171 c Is 5462.62 170609 188910 3 3 0.101 0.0450 2.43 -0.87 c Is 5480.10 170667 188910 5 3 0.167 0.0450 4.06 -0.65 c Is 5454.26 170609 188938 3 1 0.405 0.060 3.24 -0.74 c Is 5478.13 170609 188858 3 5 0.100 0.075 4.06 -0.65 c Is 5452.12 170573 188910 1 3 0.135 0.181 3.24 -0.74 c Is

33 61 o 6610.58 174213 189336 5 7 0.59 0.54 59 0.433 c 4, ca

(31)

34 i D

-ip° 6284.30 174213 190121 5 3 0.0188 0.0067 0.69 -1.477 c 4, ca

(32)

35 2s2p23p —

o 1 lO QlO 5177.8 223731 243039 25 35 1.02 0.57 244 1.154 c ca

2s2p2

( 4 P)3d (66)

5179.50 223787 243088 9 11 1.02 0.50 70 0.65 c Is 5175.89 223733 243048 7 9 0.85 0.440 52 0.488 c Is 5173.37 223690 243014 5 7 0.70 0.394 33.5 0.294 c Is 5172.32 223660 242989 3 5 0.57 0.382 19.5 0.060 c Is 5172.32 223645 242973 1 3 0.476 0.57 9.8 -0.242 c Is 5190.42 223787 243048 9 9 0.169 0.068 10.5 -0.211 c Is 5184.96 223733 243014 7 7 0.305 0.123 14.7 -0.066 c Is 5180.34 223690 242989 5 5 0.407 0.164 14.0 -0.087 c Is 5177.06 223660 242973 3 3 0.475 0.191 9.8 -0.242 c Is 5199.50 223787 243014 9 7 0.0144 0.00454 7.0 -1.388 c Is 5191.97 223733 242989 7 5 0.0405 0.0117 1.40 -1.088 c Is 5184.96 223690 242973 5 3 0.068 0.0163 1.40 -1.088 c Is

36 5p° _ 5p 5335.8 225644 244380 15 15 0.417 0.178 46.8 0.427 c ca

(69)

5351.21 225673 244355 7 7 0.275 0.118 14.6 -0.082 c Is 5327.45 225629 244393 5 5 0.0349 0.0148 1.30 -1.129 c Is 5313.43 225605 244419 3 3 0.106 0.0447 2.34 -0.87 c Is 5340.20 225673 244393 7 5 0.194 0.059 7.3 -0.382 c Is 5320.96 225629 244419 5 3 0.315 0.080 7.0 -0.396 c Is 5338.66 225629 244355 5 7 0.139 0.083 7.3 - 0.383 c Is 5320.96 225605 244393 3 5 0.189 0.134 7.0 - 0.397 c Is

61
Nil. Allowed Transitions — Continued

No. Transition

Array

Multiplet X(A) £,(cm ') Ek( cm ') g> gk A-,(108 sec- 1 ) fik S(at.u.) log gf Accuracy

Source

37 5P° — 5 D 5175.9 225644 244959 15 25 0.83 0.56 142 0.92 C ca

(70)

5179.50 225673 244974 7 9 0.83 0.429 51 0.478 C Is 5171.46 225629 244960 5 7 0.56 0.312 26.5 0.193 C Is 5168.24 225605 244949 3 5 0.292 0.195 9.9 -0.233 C Is 5183.21 225673 244960 7 7 0.276 0.111 13.3 -0.109 C Is 5174.46 225629 244949 5 5 0.485 0.195 16.6 -0.012 C Is 5170.08 225605 244941 3 3 0.62 0.250 12.8 -0.124 C Is 5186.17 225673 244949 7 5 0.055 0.0159 1.90 -0.95 C Is 5176.56 225629 244941 5 3 0.208 0.050 4.26 -0.60 C Is 5171.30 225605 244937 3 1 0.83 0.111 5.7 -0.477 C Is

38 2p3p — 1 *5o 3006.86 164612 197859 3 3 0.54 0.073 2.17 -0.66 C ca

2p(2 P°)4s (18)

39 3£) 3p° 3328.3 166616 196653 15 9 1.11 0.111 18.2 0.220 C ca

(22)

3328.79 166679 196712 7 5 0.93 0.111 8.5 -0.110 c Is 3331.32 166583 196593 5 3 0.83 0.083 4.55 -0.382 c Is 3330.30 166522 196541 3 1 1.11 0.061 2.02 -0.73 c Is 3318.14 166583 196712 5 5 0.169 0.0278 1.52 -0.86 c Is 3324.58 166522 196593 3 3 0.279 0.0463 1.52 -0.86 c Is [3311.4] 166522 196712 3 5 0.0113 0.00309 0.101 -2.033 c Is

40 3§ 3p° 3601.3 168893 196653 3 9 0.230 0.134 4.77 -0.395 c ca

(26)

3593.60 168893 196712 3 5 0.231 0.075 2.65 -0.65 c Is 3609.09 168893 196593 3 3 0.228 0.0446 1.59 -0.87 c Is 3615.88 168893 196541 3 1 0.227 0.0148 0.53 -1.351 c Is

41 3p 3p° 3842.7 170637 196653 9 9 0.69 0.153 17.4 0.138 c ca

(30)

3838.39 170667 196712 5 5 0.52 0.116 7.3 -0.238 c Is 3847.38 170609 196593 3 3 0.172 0.0382 1.45 -0.94 c Is 3856.07 170667 196593 5 3 0.285 0.0381 2.42 -0.72 c Is 3855.08 170609 196541 3 1 0.68 0.051 1.93 -0.82 c Is 3829.80 170609 196712 3 5 0.175 0.064 2.42 -0.72 c Is 3842.20 170573 196593 1 3 0.230 0.153 1.93 -0.82 c Is

42 6 i *5o 4227.75 174213 197859 5 3 1.06 0.171 11.9 -0.068 c ca

(33)

43 
 1 o 5104.45 178274 197859 1 3 0.189 0.222 3.73 -0.65 c ca

(34)

44 2p3p — 0 1Q 2206.10 164612 209927 3 5 0.49 0.060 1.3 -0.75 D- 4

2p(2P°)4d (15uv)

45 3J) _ 3p° 2317.1 166616 209761 15 21 0.56 0.063 7.2 -0.03 D- 4

(16uv)

2317.01 166679 209825 7 9 0.56 0.058 3.T -0.39 D- Is 2316.46 166583 209740 5 7 0.49 0.055 2.1 -0.56 D- Is 2316.65 166522 209675 3 5 0.46 0.061 1.4 -0.74 D- Is 2321.65 166679 209740 7 7 0.062 0.0050 0.27 -1.45 D- Is 2319.94 166583 209675 5 5 0.088 0.0071 0.27 -1.45 D- Is 2325.16 166679 209675 7 5 0.0024 1.4 x 10-4 0.0076 -3.00 D- Is

46 3p 3J)° 2521.9 170637 210278 9 15 0.33 0.052 3.9 -0.33 D- 4

(19uv)

2522.27 170667 210302 5 7 0.32 0.043 1.8 -0.66 D- Is 2520.85 170609 210266 3 5 0.25 0.039 0.97 -0.93 D- Is 2520.27 170573 210240 1 3 0.18 0.052 0.43 -1.29 D- Is 2524.49 170667 210266 5 5 0.081 0.0077 0.32 -1.41 D- Is 2522.46 170609 210240 3 3 0.13 0.013 0.32 -1.41 D- Is 2526.17 170667 210240 5 3 0.0092 5.3 X 10-4 0.022 -2.58 D- Is
N II. Allowed Transitions — Continued

No. Transition

Array

Multiplet A(A) Ei(cm~ l ) Ek(cm'1 ) gi gk /tA,(10K sec ') I* S(at.u.) log gf Accuracy

Source

47 W 1 CO TJO 2493.5 170637 210729 9 9 0.19 0.018 1.3 -0.80 D- 4

(20uv)

2496.88 170667 210705 5 5 0.14 0.013 0.54 -1.18 D- Is 2490.37 170609 210752 3 3 0.048 0.0045 0.11 -1.87 D- Is 2493.94 170667 210752 5 3 0.078 0.0044 0.18 -1.66 D- Is 2488.75 170609 210777 3 1 0.18 0.0057 0.14 -1.77 D- Is 2493.16 170609 210705 3 5 0.047 0.0073 0.18 -1.66 D- Is 2488.12 170573 210752 1 3 0.061 0.017 0.14 -1.77 D- Is

48 ‘D — >D° 2799.20 174213 209927 5 5 0.079 0.0093 0.43 -1.33 D- 4

(21uv)

49 1 D- 1 F° 2709.82 174213 211031 5 7 0.35 0.054 2.4 -0.57 D- 4

(22uv)

50 Cn 1 *5o 3023.80 178274 211336 1 3 0.14 0.057 0.57 -1.24 D- 4

(35)

51 2p3p — i D -ip° 2461.30 174213 214828 5 3 0.353 0.0193 0.78 -1.017 C 4, ca

2p(2 P°)5s (23uv)

52 2p3d — 3jr° _ 3j) 6168.1 186593 202801 21 15 0.363 0.148 63 0.492 C 4, ca

2p( 2 P°)4p (36)

6167.82 186653 202862 9 7 0.333 0.148 27.0 0.124 C Is 6173.40 186572 202766 7 5 0.320 0.131 18.6 -0.039 C Is 6170.16 186512 202715 5 3 0.362 0.124 12.6 -0.207 C Is 6136.89 186572 202862 7 7 0.0293 0.0165 2.34 -0.94 C Is 6150.76 186512 202766 5 5 0.0407 0.0231 2.34 -0.94 C Is 6114.6 186512 202862 5 7 8.4 X 10~4 6.6 X 10-4 0.066 -2.48 C Is

53 a

0 1 6629.80 187092 202170 5 3 0.283 0.112 12.2 -0.253 C 4, ca

(41)

54 3 D° — 3D 6521.8 187472 202801 15 15 0.058 0.0373 12.0 -0.253 C 4, ca

(45)

6504.61 187493 202862 7 7 0.052 0.0332 4.98 -0.63 C Is 6532.55 187462 202766 5 5 0.0404 0.0259 2.78 -0.89 C Is 6544.16 187438 202715 3 3 0.0434 0.0278 1.80 -1.078 C Is 6545.53 187493 202766 7 5 0.0090 0.00411 0.62 -1.54 C Is 6554.47 187462 202715 5 3 0.0144 0.0056 0.60 -1.56 C Is 6491.79 187462 202862 5 7 0.0066 0.0058 0.62 -1.54 C Is 6522.39 187438 202766 3 5 0.0088 0.0093 0.60 -1.55 C Is

55 3J)° 3p 6345.8 187472 203226 15 9 0.306 0.111 34.7 0.220 C 4, ca

(46)

6340.57 187493 203260 7 5 0.258 0.111 16.2 -0.110 c Is 6356.55 187462 203189 5 3 0.229 0.083 8.7 -0.381 c Is 6357.57 187438 203165 3 1 0.304 0.061 3.85 -0.74 c Is 6328.39 187462 203260 5 5 0.0462 0.0277 2.89 -0.86 c Is 6346.86 187438 203189 3 3 0.076 0.0461 2.89 -0.86 c Is 6318.80 187438 203260 3 5 0.00310 0.00310 0.193 -2.033 c Is

56 3p° _ 3J) 7183.5 188884 202801 9 15 0.00324 0.00418 0.89 - 1.424 c 4, ca

(52)

7138.87 188858 202862 5 7 0.00332 0.00355 0.417 -1.75 c Is 7215.06 188910 202766 3 5 0.00242 0.00314 0.224 -2.026 c Is 7256.53 188938 202715 1 3 0.00175 0.00414 0.099 -2.383 c Is 7188.20 188858 202766 5 5 8.1 X 10-4 6.3 X 10-4 0.074 -2.50 c Is [7241.8] 188910 202715 3 3 0.00132 0.00103 0.074 -2.51 c Is [7214.6] 188858 202715 5 3 8.9 X 10-5 4.18 X 10" 5 0.00497 -3.68 c Is

57 3p° _ 3p 6970.6 188884 203226 9 9 0.086 0.062 12.9 -0.250 c 4, ca

(53)

6941.75 188858 203260 5 5 0.065 0.0473 5.4 -0.63 c Is 7003.0 188910 203189 3 3 0.0224 0.0165 1.14 -1.306 c Is 6975.64 188858 203189 5 3 0.0356 0.0156 1.79 -1.108 c Is

63

766-655 0-66—6
N II. Allowed Transitions — Continued

No. Transition

Array

Multiplet x(A) £i(cm ') Ek( cm ') gi gk /C;(10s sec ’) fik S(at.u.) •og gf Accuracy

Source

7013.98 188910 203165 3 1 0.084 0.0206 1.43 -1.208 C Is 6966.81 188910 203260 3 5 0.0215 0.0260 1.79 -1.108 C Is 7014.73 188938 203189 1 3 0.0280 0.062 1.43 -1.208 c Is

58 3p°_3g 6824.5 188884 203533 9 3 0.355 0.083 16.7 -0.129 c 4, ca

(54)

6809.99 188858 203533 5 3 0.199 0.083 9.3 -0.382 c Is 6834.09 188910 203533 3 3 0.118 0.083 5.6 -0.60 c Is 6847.24 188938 203533 1 3 0.0389 0.082 1.85 -1.086 c Is

59 00 1 0 6242.52 189336 205351 7 5 0.341 0.142 20.5 -0.001 c 4, ca

(57)

60 00 1 do 5954.28 190121 206911 3 1 0.421 0.075 4.39 -0.65 c- 4, ca

(60)

61 2p3d — 3jr° _ 3Q 4040.9 186593 211332 21 27 2.64 0.83 232 1.243 c 4, ca

2p(2 P°)4/ (39)

62 3F°— !0

(40)

4026.08 186572 211403 7 9 0.90 0.280 26.0 0.293 c 3

63 1 D

°— !F 4176.16 187092 211031 5 7 2.19 0.80 55 0.60 c 4, ca

(42)

64 3Q° _ 3F 4239.4 187472 211053 15 21 2.14 0.81 169 1.083 c 4, ca

(48)

65 3p° _ 3J) 4434.6 188884 211428 9 15 1.84 0.91 119 0.91 c 4, ca

(55)

4432.74 188858 211411 5 7 1.86 0.77 56 0.58 c Is 4441.99 188910 211416 3 5 1.38 0.68 29.8 0.309 c Is 4433.48 188938 211487 1 3 1.02 0.90 13.2 - 0.044 c Is 4431.82 188858 211416 5 5 0.461 0.136 9.9 -0.168 c Is 4427.97 188910 211487 3 3 0.77 0.226 9.9 -0.168 c Is [4417.9] 188858 211487 5 3 0.052 0.0091 0.66 -1.343 c Is

66 *F° — 3 G

(58)

4552.54 189336 211296 7 9 0.76 0.305 32.0 0.329 c 3

67 00 1 6 4530.40 189336 211403 7 9 1.69 0.67 70 0.67 c 3

(59)

68 00 1 0 4677.93 190121 211491 3 5 1.65 0.90 41.8 0.434 c 4, ca

(62)

Forbidden Transitions

The adopted values represent, as in the case of Cl, the work of Garstang [1], Naqvi [2], and

Yamanouchi and Horie [3], who have independently done essentially the same calculations and

arrived at very similar results. For the selection of values, the same considerations as for Cl

are applied.

References

[1] Garstang, R. H., Monthly Notices Roy. Astron. Soc. Ill, 115-124 (1951).

[2] Naqvi, A. M., Thesis Harvard (1951).

[3] Yamanouchi, T., and Horie, H., J. Phys. Soc. Japan 7, 52—56 (1952).

64
N II. Forbidden Transitions

No. Transition Multiplet MA) £f(cm-1

) Ek{cm~ x ) gi gk Type of /Msec ') S(at.u.) Accu- Source

Array Transition racy

1 2p2 — 2p2 up _ :ip [20.36 x 105

] 0.0 49.1 1 3 m 2.13 X lO"6 2.00 B 1,2,3

[76.14 x 104

] 0.0 131.3 1 5 e 1.30 X 10- 12 0.99 C 1 [12.16 x lO5

] 49.1 131.3 3 5 rn 7.48 X 10-6 2.50 B 1,2,3

[12.16 x 105

] 49.1 131.3 3 5 e 2.90 X 10- 13 2.30 C 1

2

3 p_iD

(1 F)

6527.4 0.0 15315.7 1 5 e 4.2 X lO"7 1.5 XIO"5 D 1 6548.1 49.1 15315.7 3 5 m 0.00103 5.4 X 10"5 C 1,2,3

6548.1 49.1 15315.7 3 5 e 1.4 X 10-6 5.0 X lO"5 D 1 6583.6 131.3 15315.7 5 5 m 0.00303 1.60 X 10-“ C 1,2,3

6583.6 131.3 15315.7 5 5 e 9.4 x 10-6 3.5 X 10-4 D 1

3

3P-‘S

(2 F)

3063.0 49.1 32687.1 3 1 m 0.0340 3.62 x 10- 5 C 1,3

3070.8 131.3 32687.1 5 1 e 1.6 x 10-4 2.6 X lO"5 D 1

4 *D — ‘S

(3 F)

5754.8 15315.7 32687.1 5 1 e 1.08 4.06 C 1

N in

Ground State Is2 2

s

2 2p2 P°1/2

Ionization Potential 47.426 eV = 382625.5 cm"1

Allowed Transitions

List of tabulated lines:

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

374.204 11 772.93 6 1804.3 24

374.44 11 772.975 6 1805.5 24

374.441 11 979.77 5 1885.25 27

451.869 10 979.842 5 1908.11 28

452.226 10 979.919 5 1917.7 29

684.996 3 980.01 5 1918.7 29

685.513 3 989.790 1 1919.5 29

685.816 3 991.514 1 1919.7 29

686.335 3 991.579 1 1920.0 29

763.340 2 1006.0 7 1920.86 29

764.357 2 1183.03 9 1921.49 29

771.544 4 1184.54 9 2063.50 30

771.901 4 1747.86 8 2063.99 30

772.385 4 1751.24 8 2068.25 30

772.891 6 1751.75 8 2247.7 25

65
List of tabulated lines — Continued

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

2247.92 25 3771.08 14 4527.86 22

2248.88 25 3934.41 18 4530.84 13

2453.85 26 3938.52 18 4534.57 13

2459.2 26 3942.78 18 4535.11 22

2462.56 26 3998.69 31 4546.36 22

2462.9 26 4003.6 31 4547.34 13

2466.3 26 4003.64 31 4858.74 20

2468.36 26 4097.31 12 4858.88 20

2469.1 26 4103.37 12 4861.33 20

2471.2 26 4195.70 16 4867.18 20

2972.60 19 4200.02 16 4873.58 20

2977.3 19 4215.69 16 4881.81 20

2978.8 19 4321.37 21 4884.14 20

2983.58 19 4323.93 21 4896.71 20

3342.77 17 4328.15 21 6445.05 23

3353.78 15 4330.14 21 6450.78 23

3354.29 15 4330.44 21 6453.95 23

3355.47 17 4335.53 21 6463.03 23

3358.72 15 4339.52 21 6466.86 23

3361.90 15 4348.36 21 6468.77 23

3365.79 15 4353.66 21 6478.69 23

3367.36 15 4510.92 13 6487.55 23

3374.06 15 4514.89 13

3745.83 14 4518.18 13

3754.62 14 4523.60 13

As in the case of analogous configurations, the data for the lower excited transitions, which

are obtained from the calculations by Bolotin and Yutsis [1] and Kelly [2], are quite uncertain be- cause of the strong effects of configuration interaction. The latter are either crudely taken into

account (Bolotin and Yutsis) or entirely neglected (Kelly). For some higher excited transitions

self-consistent field calculations by Kelly [3] including exchange affects are available and are averaged with the results of the Coulomb approximation. For other prominent transitions the

Coulomb approximation is applied whenever it is expected to give reliable results.

References

[1] Bolotin, A. B., and Yutsis, A. P., Zhur. Eksptl. i Teoret. Fiz. 24, 537-543 (1953) (Translated in “Optical Transition Probabilities”, Office of Technical Services, U.S. Department of Commerce, Washington, D.C.).

[2] Kelly, P. S., Astrophys. J. 140, 1247-1268 (1964).

[3] Kelly, P. S., J. Quant. Spectrosc. Radiat. Transfer 4, 117—148 (1964).
N III. Allowed Transitions

No. Transition Multiplet \(A) £j(cm ') Ek( cm ') gi gk /M10H sec-') fk S(at.u.) gf Accu- Source

Array racy

1 2s2 2p~2s2p2 2 P°- 2 D 990.98 116.3 101027 6 10 7.3 0.18 3.5 0.03 E 1 (1 uv)

991.579 174.5 101024 4 6 7.3 0.16 2.1 -0.19 E Is 989.790 0.0 101032 2 4 6.3 0.18 1.2 -0.43 E Is 991.514 174.5 101032 4 4 1.2 0.018 0.23 -1.15 E Is

2

2 P° — 2 S 764.01 116.3 131004 6 2 39 0.11 1.7 -0.17 E 1 (2 uv)

764.357 174.5 131004 4 2 25 0.11 1.1 -0.36 E Is 763.340 0.0 131004 2 2 13 0.11 0.57 -0.64 E Is

3

2 p° 2 p 685.71 116.3 145950 6 6 64 0.45 6.1 0.43 E 1 (3 uv)

685.816 174.5 145987 4 4 53 0.38 3.4 0.18 E Is 685.513 0.0 145876 2 2 44 0.31 1.4 -0.21 E Is 686.335 174.5 145876 4 2 21 0.075 0.68 -0.52 E Is 684.996 0.0 145987 2 4 11 0.15 0.68 -0.52 E Is

4 2s2p2 — 2p3 4? _ 4go 772.09 57283 186802 12 4 56 0.17 5.1 0.30 E 2

(8 uv)

772.385 57333 186802 6 4 29 0.17 2.6 0.01 E Is 771.901 57252 186802 4 4 19 0.17 1.7 -0.17 E Is 771.544 57192 186802 2 4 9.4 0.17 0.85 -0.48 E Is

5

O Q (M Q 1 -N 979.89 101027 203079 10 10 14 0.20 6.6 0.31 E 2

(12 uv)

979.919 101024 203072 6 6 13 0.19 3.7 0.06 E Is 979.842 101032 203089 4 4 13 0.19 2.4 -0.13 E Is [979.77] 101024 203089 6 4 1.4 0.013 0.26 -1.09 E Is [980.01] 101032 203072 4 6 0.93 0.020 0.26 -1.09 E Is

6

2 p _ 2 p° 772.91 101027 230408 10 6 16 0.086 2.2 -0.06 E 2

(13 uv)

772.891 101024 230409 6 4 14 0.085 1.3 -0.29 E Is 772.975 101032 230405 4 2 16 0.072 0.73 -0.54 E Is [772.93] 101032 230409 4 4 1.6 0.015 0.15 -1.23 E Is

7

2 C 2 p°

(17 uv)

1006.0 131004 230408 2 6 6.0 0.27 1.8 -0.26 E 2

8

2 p _ 2 j)° 1750.4 145950 203079 6 10 2.6 0.20 6.9 0.08 E 2

(19 uv)

1751.75 145987 203072 4 6 2.6 0.18 4.1 -0.15 E Is 1747.86 145876 203089 2 4 2.2 0.20 2.3 -0.40 E Is 1751.24 145987 203089 4 4 0.43 0.020 0.46 -1.10 E Is

9

2 p _ 2 p° 1184.0 145950 230408 6 6 8.5 0.18 4.2 0.03 E 2

(20 uv)

1184.54 145987 230409 4 4 7.0 0.15 2.3 -0.23 E Is 1183.03 145876 230405 2 2 5.7 0.12 0.93 -0.62 E Is 1184.54 145987 230405 4 2 2.9 0.030 0.47 -0.92 E Is 1183.03 145876 230409 2 4 1.4 0.060 0.47 -0.92 E Is

10 2p-(*S)3s 2 p° 2 § 452.11 116.3 221302 6 2 45 0.046 0.41 -0.56 E 2

(4 uv)

452.226 174.5 221302 4 2 30 0.045 0.27 -0.74 E Is 451.869 0.0 221302 2 2 15 0.047 0.14 -1.03 E Is

11 2p-(‘S)3d 2 p° 2 p 374.36 116.3 267242 6 10 110 0.39 2.9 0.37 D- 2

(5 uv)

374.441 174.5 267244 4 6 110 0.34 1.7 0.14 D- Is 374.204 0.0 267239 2 4 94 0.39 0.97 -0.10 D- Is [374.44] 174.5 267239 4 4 18 0.039 0.19 -0.81 D- Is

12 3s-(‘S)3p 2 g _ 2p° 4099.2 221302 245690 2 6 0.97 0.73 19.7 0.164 C 3, ca

(1) 4097.31 221302 245702 2 4 0.96 0.486 13.1 -0.013 C Is 4103.37 221302 245666 2 2 0.97 0.244 6.6 -0.311 C Is

67
N III. Allowed Transitions — Continued

No. Transition Multiplet \(A) Ei(c m ') Ek(cm ') gt gk ;4 kj( 103 sec ') fik S(at.u.) log gf Accu- Source

Array racy

13 2s2p3s — 4 P° — 4 D 4517.3 287646 309777 12 20 0.70 0.357 64 0.63 C ca

2s2p(3 P°)3p (3) 4514.89 287714 309857 6 8 0.70 0.286 25.5 0.235 c Is 4510.92 287598 309761 4 6 0.492 0.225 13.4 - 0.046 c Is 4510.92 287536 309698 2 4 0.293 0.179 5.3 -0.446 c Is 4534.57 287714 309761 6 6 0.208 0.064 5.7 -0.416 c Is 4523.60 287598 309698 4 4 0.372 0.114 6.8 -0.341 c Is 4518.18 287536 309663 2 2 0.58 0.178 5.3 -0.449 c Is 4547.34 287714 309698 6 4 0.0344 0.0071 0.64 -1.371 c Is 4530.84 287598 309663 4 2 0.116 0.0178 1.06 -1.148 c Is

14 4 P° 4 S 3761.4 287646 314224 12 4 1.24 0.088 13.1 0.024 c ca

(4) 3771.08 287714 314224 6 4 0.61 0.087 6.5 -0.282 c Is 3754.62 287598 314224 4 4 0.416 0.088 4.35 - 0.454 c Is 3745.83 287536 314224 2 4 0.209 0.088 2.17 -0.75 c Is

15 4p° _ 4p 3363.9 287646 317365 12 12 1.74 0.296 39.3 0.55 c ca

(5) 3367.36 287714 317402 6 6 1.22 0.207 13.8 0.094 c Is 3361.90 287598 317343 4 4 0.233 0.0395 1.75 -0.80 c Is 3358.72 287536 317300 2 2 0.292 0.0494 1.09 - 1.005 c Is 3374.06 287714 317343 6 4 0.78 0.089 5.9 -0.273 c Is 3365.79 287598 317300 4 2 1.45 0.123 5.5 -0.308 c Is 3354.29 287598 317402 4 6 0.53 0.134 5.9 -0.271 c Is 3353.78 287536 317343 2 4 0.73 0.247 5.5 -0.306 c Is

16 2p° 2J) 4199.6 297225 321030 6 10 1.00 0.442 36.7 0.424 c ca

(6) 4200.02 297263 321066 4 6 1.00 0.398 22.0 0.202 c Is 4195.70 297150 320977 2 4 0.84 0.442 12.2 -0.054 c Is 4215.69 297263 320977 4 4 0.165 0.0440 2.44 -0.75 c Is

17 2p° _ 2g 3351.1 297225 327057 6 2 2.00 0.112 7.4 -0.173 c ca

(7) 3355.47 297263 327057 4 2 1.33 0.112 4.95 -0.349 c Is 3342.77 297150 327057 2 2 0.67 0.113 2.49 -0.65 c Is

18 2s2p3p — 2 p _ 2 D

° 3937.4 309168 334558 6 10 0.96 0.372 28.9 0.349 c ca

2s2p(3P°)3d (8) 3938.52 309186 334569 4 6 0.96 0.335 17.4 0.127 c Is 3934.41 309133 334542 2 4 0.80 0.372 9.6 -0.128 c Is 3942.78 309186 334542 4 4 0.160 0.0372 1.93 -0.83 c Is

19 tc 1 NJO 2979.9 309168 342717 6 6 1.38 0.184 10.8 0.043 c ca

/

(25 uv)

2983.58 309186 342693 4 4 1.14 0.153 6.0 -0.214 c Is 2972.60 309133 342764 2 2 0.93 0.123 2.40 -0.61 c Is [2977.3] 309186 342764 4 2 0.461 0.0307 1.20 -0.91 c Is [2978.8] 309133 342693 2 4 0.230 0.061 1.20 -0.91 c Is

20 4

>. a i o 4864.8 309777 330327 20 28 0.63 0.312 100 0.80 c ca

(9) 4867.18 309857 330397 8 10 0.63 0.279 35.8 0.349 c Is 4861.33 309761 330325 6 8 0.54 0.255 24.5 0.185 c Is 4858.88 309698 330274 4 6 0.471 0.250 16.0 0.000 c Is 4858.74 309663 330238 2 4 0.441 0.312 10.0 -0.205 c Is 4884.14 309857 330325 8 8 0.089 0.0318 4.09 -0.59 c Is 4873.58 309761 330274 6 6 0.152 0.054 5.2 -0.490 c Is 4867.18 309698 330238 4 4 0.175 0.062 3.97 -0.61 c Is 4896.71 309857 330274 8 6 0.0059 0.00158 0.204 -1.90 c Is 4881.81 309761 330238 6 4 0.0124 0.00296 0.285 -1.75 c Is

68
N III. Allowed Transitions — Continued

No. Transition

Array

Multiplet x(A) CJ £ Ek( cm -1

) gi gk Ta((10m sec ') fk S(at.u.) • f>g gf Accuracy

Source

21 4 D — 4 D° 4335.7 309777 332835 20 20 0.234 0.066 18.8 0.121 C ca

(10)

4348.36 309857 332860 8 8 0.198 0.056 6.4 - 0.349 c Is 4335.53 309761 332832 6 6 0.134 0.0378 3.24 -0.64 c Is 4328.15 309698 332810 4 4 0.094 0.0263 1.50 -0.98 c Is 4323.93 309663 332797 2 2 0.117 0.0329 0.94 -1.182 c Is 4353.66 309857 332832 8 6 0.0436 0.0093 1.07 -1.128 c Is 4339.52 309761 332810 6 4 0.081 0.0153 1.31 -1.037 c Is 4330.44 309698 332797 4 2 0.117 0.0164 0.94 -1.183 c Is 4330.14 309761 332860 6 8 0.0334 0.0125 1.07 -1.125 c Is 4323.93 309698 332832 4 6 0.056 0.0236 1.34 -1.025 c Is 4321.37 309663 332810 2 4 0.059 0.0329 0.94 -1.182 c Is

22 4 S- 4 P° 4539.6 314224 336246 4 12 0.99 0.91 54 0.56 c ca

(13)

4546.36 314224 336213 4 6 0.99 0.456 27.2 0.261 c Is 4535.11 314224 336268 4 4 0.99 0.304 18.2 0.085 c Is 4527.86 314224 336303 4 2 0.99 0.152 9.1 -0.216 c Is

23 4p 4£)° 6462.3 317365 332835 12 20 0.432 0.451 115 0.73 c ca

(14)

6466.86 317402 332860 6 8 0.432 0.361 46.1 0.336 c Is 6453.95 317343 332832 4 6 0.304 0.285 24.2 0.057 c Is 6445.05 317300 332810 2 4 0.181 0.226 9.6 -0.345 c Is 6478.69 317402 332832 6 6 0.129 0.081 10.4 -0.313 c Is 6463.03 317343 332810 4 4 0.232 0.145 12.3 -0.237 c Is 6450.78 317300 332797 2 2 0.362 0.226 9.6 -0.345 c Is 6487.55 317402 332810 6 4 0.0214 0.0090 1.15 - 1.268 c Is 6468.77 317343 332797 4 2 0.072 0.0226 1.93 -1.044 c Is

24 3p-(‘S)4s 2p° 2g 1805.1 245690 301088 6 2 6.8 0.110 3.93 -0.180 c 3, ca

(22 uv)

1805.5 245702 301088 4 2 4.51 0.110 2.62 -0.356 c Is 1804.3 245666 301088 2 2 2.26 0.110 1.31 -0.66 c Is

25 3rf-( 1 S)4p 2£) _ 2p° 2248.2 267242 311708 10 6 1.6 0.074 5.5 -0.13 D 3, ca

(23 uv)

2247.92 267244 311716 6 4 1.5 0.074 3.3 -0.35 D Is 2248.88 267239 311691 4 2 1.6 0.062 1.8 -0.61 D Is [2247.7] 267239 311716 4 4 0.16 0.012 0.37 -1.30 D Is

26 2s2p3d — 4P° — 4 D 2460.4 336246 376877 12 20 0.014 0.0022 0.21 -1.59 D ca

2s2p(3 P°)4p (28 uv)

2453.85 336213 376953 6 8 0.015 0.0018 0.085 -1.98 D Is 2462.56 336268 376864 4 6 0.010 0.0014 0.046 -2.25 D Is 2468.36 336303 376803 2 4 0.0062 0.0011 0.018 -2.65 D Is [2459.2] 336213 376864 6 6 0.0044 4.0 X lO"4 0.019 -2.62 D Is [2466.3] 336268 376803 4 4 0.0079 7.2 x 10-4 0.023 -2.54 D Is [2471.2] 336303 376757 2 2 0.012 0.0011 0.018 -2.64 D Is [2462.9] 336213 376803 6 4 7.4 X 10-4 4.5 X 10-5 0.0022 -3.57 D Is [2469.1] 336268 376757 4 2 0.0025 1.1 X 10-4 0.0037 -3.34 D Is

27 3d-(»S)4/ 1 !N O Q

04 1885.25 267242 320285 10 14 11.9 0.89 55 0.95 C 3, ca

(24 uv)

28 2s2p3d — 2J)°_ 2p 1908.11 334558 386965 10 14 11.0 0.84 53 0.92 C ca

2s2p( 3 P°)4/ (27 uv)

69
N III. Allowed Transitions — Continued

No. Transition

Array

Multiplet mA) £i(cm ') Ek(cm ') gi gk T/n( 108 sec-') fik S(at.u.) log gf Accuracy

Source

29 4p° 4 Q 1920.6 336246 388313 12 20 10.3 0.95 72 1.057 C ca

(29 uv)

1920.86 336213 388273 6 8 10.3 0.76 28.7 0.66 c Is 1921.49 336268 388311 4 6 7.2 0.60 15.1 0.38 c Is 1920.86 336303 388359 2 4 4.27 0.472 6.0 -0.025 c Is [1919.5] 336213 388311 6 6 3.08 0.170 6.4 0.009 c Is [1919.7] 336268 388359 4 4 5.5 0.302 7.6 0.082 c Is [1920.0] 336303 388387 2 2 8.5 0.471 6.0 -0.026 c Is [1917.7] 336213 388359 6 4 0.51 0.0188 0.71 -0.95 c Is [1918.7] 336268 388387 4 2 1.71 0.0471 1.19 -0.72 c Is

30 2jr° _ 2 Q 2063.8 339808 388246 14 18 11.3 0.93 88 1.115 c ca

(30 uv)

2063.99 339856 388290 8 10 11.3 0.90 48.9 0.86 c Is 2063.50 339744 388190 6 8 10.9 0.93 37.9 0.75 c Is 2068.25 339856 388190 8 8 0.402 0.0258 1.41 -0.69 c Is

31 4d-dS)5/ to a 1 to T)

O 4001.8 317770 342752 10 14 2.11 0.709 93.4 0.851 c + ca

(16)

4003.64 317782 342752 6 8 2.10 0.674 53.3 0.609 c + Is 3998.69 317751 342752 4 6 1.98 0.710 37.4 0.454 c + Is [4003.6] 317782 342752 6 6 0.140 0.0338 2.67 -0.693 c + Is

/

Forbidden Transitions

Naqvi’s calculation [1] of the one possible transition in the ground state configuration 2p is the only available source. The line strength should be quite accurate, since it does not sensitively

depend on the choice of the interaction parameters.

Reference

[1] Naqvi, A. M., Thesis Harvard (1951).

N III. Forbidden Transitions

No. Transition

Array

Multiplet mA) Eifcm q Ek( cm q gi gk

Type of

Transition

Aki( sec q S(at.u.) Accuracy

Source

1 2p — 2p to u

0 1 to TJ o [57.29 X 104

] 0 174.5 2 4 m 4.77 x 10-5 1.33 B 1

70
Ground State

Niv

l52 2s2 'Sc

Ionization Potential 77.450 eV = 624851 cm-'

Allowed Transitions

List of tabulated lines:

Wavelength

225.025

225.098

225.13

225.136

225.20

[A] No. Wavelength

10

10

10

10

10

923.211

923.669

924.274

955.335

1718.52

[A] No. Wavelength

3

3

3

54

4685.4

4723

4733

4740

4752

[A] No.

20

20

20

20

20

247.205

283.420

283.47

283.470

283.579

28

8

8

8

3443

3445

3454

3461.34

3463.36

15

15

15

15

15

4762

5073

5236

5245

5280.9

20

21

13

13

13

283.59

322.503

322.570

322.724

335.050

8

6

6

6

9

3474.56

3478.69

3482.98

3484.90

3747.66

15

1111

1116

5281

5303.9

5349.8

5734

6383

13

13

13

19

12 387.353

765.140

921.982

922.507

923.045

7

13

3

3

4057.80

4479

4495

4528

4678.6

17

14

14

14

20

7103.28

7109.48

7111.28

7123.10

7127.21

7129

18

18

18

18

18

18

Values for the 2s2 ~2s2p and 2s2p — 2p2 transition arrays are taken from the self-consistent

field calculations of Weiss [1]. These calculations do not include the important effects of configuration interaction; hence large uncertainties must be expected. The average of the dipole

length and velocity approximations is adopted [1]. Accuracies within 50% are indicated by the

following comparison: Weiss [1] has undertaken refined calculations, including configuration interaction, for the same transitions in Be I — the first member of this isoelectronic sequence — in addition to calculations of the type done for this ion. In all cases the agreement with the average of

the dipole length and velocity approximations is close.

For the remaining low-lying transitions Kelly’s approximate Hartree-Fock calculations [2] are adopted, while for the moderately excited transitions Kelly’s values are averaged with the Coulomb

approximation, with which they agree quite well.

References

[1] Weiss, A. W., private communication (1964).

[2] Kelly, P. S., J. Quant. Spectrosc. Radiat. Transfer 4, 117-148 (1964).

71
N IV. Allowed Transitions

No. Transition Multiplet MA) £i(cm *) Ek( cm T Si gk /!fc;(10

8 sec J) fk S(at.u.) log gf Accu- Source

Array racy

1 2s2 - i S -ip° 765.140 0 130695 1 3 24 0.64 1.6 -0.19 D 1 2s(2 S)2p (1 uv)

2 2s2 - C/5 1 *5o 247.205 0 404521 1 3 200 0.55 0.45 -0.26 D 2

2s(2 S)3p (2 uv)

3 2s2p — 3p° _ 3p 923.15 [67273] [175598] 9 9 17 0.21 5.8 0.28 D 1 2p

2 (3 uv)

923.211 [67344] [175662] 5 5 13 0.16 2.4 -0.10 D Is 923.045 [67200] [175537] 3 3 4.2 0.053 0.49 -0.80 D Is 924.274 [67344] [175537] 5 3 6.9 0.053 0.81 -0.58 D Is 923.669 [67200] [175464] 3 1 17 0.071 0.65 -0.67 D Is 921.982 [67200] [175662] 3 5 4.2 0.089 0.81 -0.57 D Is 922.507 [67136] [175537] 1 3 5.6 0.21 0.65 -0.67 D Is

4 ip°-iD 1718.52 130695 188885 3 5 5.1 0.38 6.4 0.05 D 1 (7 uv)

5

i P°_iS 955.335 130695 235370 3 1 16 0.074 0.70 -0.66 D 1 (8 uv)

6 2s2p — 3p° _ 3g 322.65 [67273] [377206] 9 3 113 0.059 0.56 -0.278 C 2

2s(2 S)3s (4 uv)

322.724 [67344] [377206] 5 3 62 0.059 0.311 -0.53 C Is 322.570 [67200] [377206] 3 3 37.6 0.059 0.187 -0.75 c Is 322.503 [67136] [377206] 1 3 12.5 0.058 0.062 -1.234 c Is

7 ip°_lS

(9 uv)

387.353 130695 388858 3 1 65 0.0489 0.187 -0.83 c 2

8 2s2p — 3p° _ 3J) 283.53 [67273] [419974] 9 15 314 0.63 5.3 0.75 c 2

2s(2 S)3d (5 uv)

283.579 [67344] [419979] 5 7 311 0.52 2.45 0.419 c Is 283.470 [67200] [419971] 3 5 235 0.471 1.32 0.151 c Is 283.420 [67136] [419968] 1 3 172 0.62 0.58 -0.207 c Is [283.59] [67344] [419971] 5 5 78 0.094 0.438 -0.329 c Is [283.47] [67200] [419968] 3 3 130 0.156 0.438 - 0/329 c Is [283.59] [67344] [419968] 5 3 8.6 0.0063 0.0292 -1.50 c Is

9 ip°_i D

(10 uv)

335.050 130695 429158 3 5 189 0.53 1.75 0.200 c 2

10 2s2p — 3p° _ 3J) 225.17 [67273] [511382] 9 15 92 0.117 0.78 0.022 c 2

2s(2 S)4d (6 uv)

225.025 [67344] [511384] 5 7 92 0.098 0.364 -0.309 c Is 225.136 [67200] [511376] 3 5 69 0.088 0.195 -0.58 c Is 225.098 [67136] [511387] 1 3 52 0.117 0.087 -0.93 c Is [225.20] [67344] [511376] 5 5 23.1 0.0175 0.065 -1.057 c Is [225.13] [67200] [511387] 3 3 38.5 0.0292 0.065 -1.057 c Is [225.20] [67344] [511387] 5 3 2.56 0.00117 0.00433 -2.234 c Is

11 2s3s — 3g _ 3p° 3480.8 [377206] [405927] 3 9 1.16 0.634 21.8 0.279 c + 2, ca

2s(2 S)3p (1) 3478.69 [377206] [405944] 3 5 1.16 0.352 12.1 0.024 c + Is 3482.98 [377206] [405909] 3 3 1.16 0.211 7.27 -0.198 c + Is 3484.90 [377206] [405893] 3 1 1.16 0.0703 2.42 -0.676 c + Is

12 Ig-ip0 6383 388858 404521 1 3 0.193 0.353 7.42 - 0.452 c + 2, ca

(2)

13 2p3s — 3p° _ 3J) 5255.1 [465382] [484406] 9 15 0.343 0.237 36.9 0.329 c ca

2p(2 P°)3p (5) 5245 [465463] [484525] 5 7 0.345 0.199 17.2 -0.002 c Is 5236 [465301] [484394] 3 5 0.261 0.178 9.2 -0.271 c Is 5281 [465223] [484150] 1 3 0.188 0.236 4.10 -0.63 c Is [5280.9] [465463] [484394] 5 5 0.085 0.0354 3.08 -0.75 c Is [5303.9] [465301] [484150] 3 3 0.139 0.059 3.08 -0.75 c Is [5349.8] [465463 [484150] 5 3 0.0090 0.00233 0.205 -1.93 c Is

72
N IV. Allowed Transitions — Continued

No. Transition

Array

Multiplet MA) 1 ba w E Ek(cm ') Si gk /R-j(10

H sec

-1

) fk S(at.u.) log gf Accuracy

Source

14 3p° _ 3g 4511.4 [465382] [487542] 9 3 0.56 0.056 7.5 -0.295 C ca

(6) 4528 [465463] [487542] 5 3 0.305 0.056 4.19 - 0.55 C Is 4495 [465301] [487542] 3 3 0.189 0.057 2.54 -0.77 C Is 4479 [465223] [487542] 1 3 0.063 0.057 0.84 -1.245 C Is

15 3p° 3p 3456.7 [ 465382

]

[494.30.3] 9 9 1.27 0.227 23.2 0.310 C ca

(7) 3463.36 [465463] [494338] 5 5 0.94 0.170 9.7 -0.072 C Is 3454 [465301] [494240] 3 3 0.316 0.057 1.93 -0.77 C Is 3474.56 [465301] [494338] 3 5 0.311 0.094 3.22 -0.55 C Is 3461.34 [465223] [494240] 1 3 0.420 0.226 2.58 -0.65 C Is 3443 [465463] [494240] 5 3 0.53 0.057 3.22 -0.55 c Is 3445 [465301] [494320] 3 1 1.28 0.076 2.58 -0.64 c Is

16 1Q

O ft* 3747.66 473032 499708 3 5 1.06 0.371 13.7 0.047 c ca

(8)

17 2s3p — *00 1 6 4057.80 388858 429158 3 5 0.758 0.312 12.5 - 0.029 c + 2, ca

2s(2 S)3d (3)

18 3p° _ 3J) 7117.0 [405927] [419974] 9 15 0.132 0.167 35.3 0.178 c + 2, ca

(4) 7123.10 [405944] [419979] 5 7 0.132 0.141 16.5 -0.153 c + Is 7109.48 [405909] [419971] 3 5 0.0995 0.126 8.82 -0.424 c + Is 7103.28 [405893] [419968] 1 3 0.0739 0.168 3.92 -0.776 c + Is 7127.21 [405944] [419971] 5 5 0.0329 0.0251 2.94 - 0.902 c + Is 7111.28 [405909] [419968] 3 3 0.0552 0.0419 2.94 -0.901 c + Is 7129 [405944] [419968] 5 3 0.00365 0.00167 0.196 -2.078 c + Is

19 2p3p — -5 l 6o 5734 480880 498315 3 5 0.178 0.146 8.3 -0.359 c ca

2p(2 P°)3d (9)

20 3 D - 3 D° 4732.2 [484406] [505532] 15 15 0.116 0.0389 9.1 -0.234 c ca

(11)

4752 [484525] [505561] 7 7 0.102 0.0344 3.77 -0.62 c Is 4733 [484394] [505518] 5 5 0.081 0.0271 2.11 -0.87 c Is [4685.4] [484150] [505487] 3 3 0.089 0.0294 1.36 - 1.055 c Is 4762 [484525] [505518] 7 5 0.0177 0.00431 0.473 -1.52 c Is 4740 [484394] [505487] 5 3 0.0289 0.0058 0.455 -1.54 c Is 4723 [484394] [505561] 5 7 0.0130 0.0061 0.473 -1.52 c Is [4678.6] [484150] [505518] 3 5 0.0180 0.0098 0.455 -1.53 c Is

21 6 i "do 5073 499708 519414 5 3 0.0127 0.00295 0.246 -1.83 c ca

(17)

Forbidden Transitions

Naqvi’s calculations [1] are the only available source. The results for the 3 P° — 3 P° transitions are essentially independent of the choice of the interaction parameters. For t he 3 P°— >P°

transitions, Naqvi has used empirical term intervals, i.e., the effects of configuration interaction

should be partially included.

Reference

[1] Naqvi, A. M., Thesis Harvard (1951).

73
N IV. Forbidden Transitions

X(A)

Type of

No. Transition Multiplet Ei(cm 9 Ek(cm *) gi gk Transi- Aki ( sec *) 5(at.u.) Accu: Source

Array tion racy

1 2s2p —

2s ( 2 S) 2p

3p° _ 3p°

[15.82 x 105

] [67136.4] [67199.6] 1 3 m 4.56 X lO"6 2.00 B 1 [69.33 X 104

] [67199.6] [67343.8] 3 5 m 4.05 X lO"5 2.50 B 1

2

CO X

0 1 Xo [1573.4] [67136.4] 130695 1 3 m 0.0118 5.1 X 10-6 C 1 [1574.9] [67199.6] 130695 3 3 m 5.5 0.00240 C 1 [1578.5] [67343.8] 130695 5 3 m 0.0146 6.4 X 10-6 C 1

Nv

Ground State Is2 25 2Si/2

Ionization Potential 97.863 eV = 789532.9 cm”1

Allowed Transitions

List of tabulated lines:

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

162.562 3 266.375 4 5067 13

186.070 6 1238.81 1 5273 11 186.153 6 1242.80 1 6719 16

186.16 6 3161 9 7330 17

209.270 2 4335 10 15088 8

209.303 2 4603.83 7 15203 8

247.563 5 4619.9 7 15258 8

247.710 5 4751 12 247.72 5 4933 14

266.192 4 4952 15

The values taken from Weiss’ calculations [1] are estimated to be accurate to within 10 percent

because of the very close agreement between his dipole length and dipole velocity approximations.

The values calculated with the length approximation are adopted. The Coulomb approximation

should be quite reliable for the highly excited transitions and is given preference over Kelly’s

approximate Hartree-Fock calculations [2], with which it sometimes disagrees.

References

[1] Weiss, A. W„ Astrophys. J. 138, 1262-1276 (1963).

[2] Kelly, P. S., J. Quant. Spectrosc. Radiat. Transfer 4, 117 (1964).

74
N V. Allowed Transitions

No. Transition Multiplet MA) Ei(c nr 1 ) Ek(cm ') A'i A'fr /lfcf(10

H sec

-1

) fik S(at.u.) lug gf Accu- Source

Array racy

1 2s — 2p

2$ _ 2p° 1240.1 0.0 80637 2 6 3.38 0.234 1.91 - 0.330 A 1 (1 uv)

1238.81 0.0 80723 2 4 3.38 0.156 1.27 -0.507 A Is 1242.80 0.0 80465 2 2 3.36 0.0778 0.637 - 0.808 A Is

2 2s — 3p

2g _ 2p° 209.28 0.0 477826 2 6 120 0.235 0.324 - 0.327 B + 1 (2 uv)

209.270 0.0 477851 2 4 119 0.157 0.216 -0.504 B + Is 209.303 0.0 477777 2 2 119 0.0784 0.108 -0.805 B + Is

3 2s — 4p 2§ 2p° 162.562 0.0 615150 2 6 56.3 0.0669 0.0716 -0.874 B ca

(3 uv)

4 2p — 3s 2p° _ 2§ 266.31 80637 456134 6 2 90.9 0.0322 0.169 -0.714 B + 1 (4 uv)

266.375 80723 456134 4 2 60.6 0.0322 0.113 - 0.890 B + Is 266.192 80465 456134 2 2 30.2 0.0321 0.0563 -1.192 B + Is

5 2p — 3d 2p° 2J) 247.66 80637 48441

7

6 10 429 0.658 3.22 0.596 B + 1 (5 uv)

247.710 80723 484427 4 6 429 0.592 1.93 0.374 B + Is 247.563 80465 484403 2 4 357 0.656 1.07 0.118 B + Is [247.72] 80723 484403 4 4 71.6 0.0659 0.215 -0.579 B + Is

6 2p — 4d

2p° _ 2J) 186.13 80637 617905 6 10 140 0.121 0.445 -0.139 B ca

(6 uv)

186.153 80723 617905 4 6 140 0.109 0.267 -0.361 B Is 186.070 80465 617905 2 4 116 0.121 0.148 -0.617 B Is [186.16] 80723 617905 4 4 23.3 0.0121 0.0297 -1.315 B Is

7 3s — 3p

2§ _ 2p° 4608.7 456134 477826 2 6 0.413 0.395 12.0 -0.103 B 1 (1) 4603.83 456134 477851 2 4 0.415 0.264 8.00 -0.278 B Is 4619.9 456134 477777 2 2 0.411 0.131 4.00 -0.580 B Is

8 3p — 3d 2p° _ 2J) 15168 477826 48441

7

6 10 0.00946 0.0544 16.3 - 0.486 B 1

[15203] 477851 484427 4 6 0.00940 0.0489 9.78 -0.709 B Is [15088] 477777 484403 2 4 0.00801 0.0547 5.43 -0.961 B Is [15258] 477851 484403 4 4 0.00155 0.00542 1.09 - 1.664 B Is

9 5p — 6s 2p° 2$ 3161 678297 [709947] 6 2 3.06 0.153 9.55 -0.037 B ca

(2)

10 6s — Ip 2g _ 2p° 4335 [709947] 732993 2 6 0.376 0.318 9.08 -0.197 B ca

(3)

11 6p — 7s 2p° 2g 5273 712464 [731432] 6 2 1.41 0.196 20.4 0.070 B ca

(4)

12 6p — Id 2p° _ 2J) 4751 712464 [7335161 6 10 0.963 0.543 51.0 0.513 B ca

(5)

13 (id — Ip 2J) _ 2p° 5067 713289 732993 10 6 0.423 0.0977 16.3 -0.010 B ca

(6)

14 (id- If 2J) _ 2p° 4933 713289 [733547] 10 14 1.62 0.828 134 0.918 B ca

(7)

15 (f- Id 2p° — 2 jy 4952 [713327] [733516] 14 10 0.161 0.0423 9.66 -0.227 B ca

(8)

16 7s — 8p 2g _ 2p° 6719 [731432] [746311] 2 6 0.171 0.348 15.4 -0.157 B ca (ID

17 7p — 8d 2p°_ 2[) 7330 732993 [746649] 6 10 0.454 0.610 88.3 0.564 B ca

(12)

75
Nvi

Ground State Is2 x So

Ionization Potential 551.925 eV = 4452800 cm-1

Allowed Transitions

The results of extensive non-relativistic variational calculations by Weiss [1] are used. Values

have been calculated in both the dipole length and dipole velocity approximations and agree to within 1%, except for the 3p

1 P° — 3c? 4 D transition where agreement is not as good. The average

of the two approximations is adopted [lj.

Reference

[1] Weiss, A. W., private communication (1964).

N VI. Allowed Transitions

No. Transition

Array

Multiplet mA) Ei(cm *) Ek{cm ') gi gk zMRPsec-1 ) fik S(at.u.) log gf Accuracy Source

1 ls2 -ls2p x S -ip° [28.787] 0 3473790 1 3 18100 0.674 0.0639 -0.171 A 1

2 Is2 — ls3p 1 S- 1 P° [24.898] 0 4016390 1 3 5160 0.144 0.0118 -0.842 A 1

3 ls2s — ls2p 1 S- 1 P° [2914.6] [3439490] 3473790 1 3 0.206 0.0786 0.754 -1.105 A 1

4 ls2s ls3p is-ip° [173.34] [3439490] 4016390 1 3 269 0.364 0.208 -0.439 A ' 1

5 ls2p— ls3af 1 P

°_1D [185.09] 3473790 [4014057] 3 5 825 0.706 1.29 0.326 A 1

6 ls3d— ls3p ip-ip0 [42850]? [4014057] 4016390 5 3 5.44 X 10“4 0.00899 6.34 -1.347 C + 1

7 Is2s-ls2p 3g _ 3p° [1901.5] [3385890] [3438480] 3 9 0.678 0.110 2.07 -0.481 A 1

8 ls2s — ls3p 3g _ 3p° [161.40] [3385890] [4005471] 3 9 285 0.334 0.533 • 0.001 A 1

9 ls2p — ls3d 3p° — 3£) [173.98] [3438480] [4013259] 9 15 876 0.662 3.41 0.775 A 1

10 ls3p — ls3d 3p°_ 3J) [12837]? [4005471] [4013259] 9 15 0.0102 0.0419 15.9 -0.424 A 1

76
OXYGEN

Oi

Ground State Is2 2s2 2

p

4 3 P2

Ionization Potential 13.614 eV = 109836.7 cm-*

Allowed Transitions

List of tabulated lines:

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

811.37 9 5435.16 40 7943.15 14

877.804 5 5435.76 40 7947.20 14

877.885 5 5436.83 40 7947.56 14

878.979 5 6046.4 41 7950.83 14

879.027 5 6106.5 34 7952.18 14

879.108 5 6155.99 32 7981.97 27

879.553 5 6156.78 32 7982.3 27

936.011 10 6158.19 32 7982.41 27

988.581 3 6242.5 15 7987.00 27

988.658 3 6259.6 36 7987.34 27

988.777 3 6269.4 35 7995.12 27

990.132 3 6453.64 37 8073.7 19

990.120 3 6454.48 37 8221.84 13

990.799 3 6456.01 37 8227.64 13

999.494 6 6653.78 24 8230.01 13

1025.77 8 7002.1 33 8232.99 13

1027.42 8 7156.80 17 8235.31 13

1028.16 8 7194.6 21 8446.5 12 1152.16 4 7254.4 38 8508.63 22

1217.64 7 7471.36 20 8820.45 16

1302.17 2 7473.23 20 9260.88 28

1304.87 2 7476.45 20 9262.73 28

1306.04 2 7477.21 20 9265.99 28

1355.61 1 7479.06 20 9391.2 18

1358.52 1 7480.66 20 11287 29

3947.29 25 7771.96 11 11295.0 30

4368.30 26 7774.18 11 11297.5 30

5328.98 39 7775.40 11 11302.2 30

5329.59 39 7886.31 23 13164 31

5330.66 39 7939.49 14

The data for the ultraviolet lines are taken from the theoretical work by Garstang [1] and

Kelly [2], with the exception of one multiplet where an experimental value by Prag and Clark [3]

is available. Even though the agreement between theory and experiment is quite good in this

case, namely within 25%, this may be accidental, since the extensive comparisons between theory

and experiment for similar transitions of C I and N I reveal many strong discrepancies. As in

the case of the other two atoms, one must again expect that the theoretical values are drastically

affected by configuration interaction which is entirely neglected in the calculations. Thus, only

the. most prominent transitions are listed, with an accuracy rating of “E ’.
Considerable material is available for the lines in the visible and near infrared region of the

spectrum. The tabulated values are taken from Kelly’s earlier self-consistent field calculations

[4] (which include exchange effects in an approximate way), Vainshtein’s semi-empirical calculations [5], the Coulomb approximation by Bates and Damgaard, and experimental work by Jurgens

[6], Foster [7], Doherty [8], Buttrey and Gibson [9], Wiese and Shumaker [10], and Solarski and

Wiese [11]. In all experiments the emission of thermal plasmas generated in stabilized arcs or shock tubes has been studied. The agreement between the various theoretical and experimental

methods is often quite remarkable. This is particularly true for the multiplets at 6157, 6455,

6654, 7157, 7477, 7773, 7886, 8227, and 8446 A for which the spread between the highest and lowest

result is only 25% or less. Based on this good agreement, an accuracy of 10% for the averaged

values is indicated. In arriving at best values, theoretical and experimental methods have usually

been equally weighted, but among the experimental methods, the recent more advanced work

[8, 9, 10, 11] is regarded as superseding the earlier work [6, 7]. For the multiplets of the moderately

excited 3s — 3p array, the advanced experimental methods are used exclusively, since the theoretical papers do not take into account the existence of weak intercombination lines from the upper

levels. The theoretical methods are also not too reliable for two other multiplets at 3947 and 4368

A, since cancellation in the transition integral occurs. In these cases, the experimental results are chosen. In the case of the strong multiplet 3p 3P — 3s' 3D° at 7989 A recourse is taken to a

calculation by Petrie [12] because the use of approximate, hydrogen-like wave functions in this

paper has given reasonable results for 3s — 3p transitions, but appears to fail otherwise.

References

[1] Garstang, R. H., Proc. Cambridge Phil. Soc. 57, 115-120 (1961).

[2] Kelly, P. S., Astrophys. J. 140, 1247-1268 (1964).

[3] Prag, A. B., and Clark, K. C., Phys. Rev. Letters 12, 34-35 (1964).

[4] Kelly, P. S., J. Quant. Spectrosc. Radiat. Transfer 4, 117-148 (1964).

[5] Vainshtein, L. A., Optika i Spektroskopiya 3, 313-321 (1957).

[6] Jiirgens, G., Z. Physik 138, 613-622 (1954).

[7] Foster, E. W., Proc. Phys. Soc. London A 79, 94-104 (1962).

[8] Doherty, L. R., Thesis Michigan (1961).

[9] Buttrey, D. E., and Gibson, J. B., Technical Documentary Report No. RTD—TDR—63—3047 (1964).

[10] Wiese, W. L., and Shumaker, Jr., J. B., J. Opt. Soc. Am. 51, 937-942 (1961).

[11] Solarski, J., and Wiese, W. L., Phys. Rev. 135, A1236-A1241 (1964).

[12] Petrie, W., J. Geophys. Research 55, 143-151 (1950).

O I. Allowed Transitions

No. Transition

Array

Multiplet mA) 1 £ Ek(cm ! ) gi gk ^(lOSsec-1 ) fik S(at.u.) log gf AccuracySource

1 2p4 - 3P - 3 S°

2p3

( 4 S°)3s (1 uv)

1355.61 0.0 73768 5 5 1.3 X 10-5 3.6 x 10~7 8.0 X 10-6 -5.74 E 1 1358.52 158.5 73768 3 5 3.8 X 10"6 1.8 x 10-7 2.4 X 10t6 -6.27 E 1

2 up _ 3§° 1303.5 78.0 76795 9 3 3.8 0.031 1.2 -0.54 D 1,2,3

(2 uv)

1302.17 0.0 76795 5 3 2.1 0.031 0.68 -0.80 D In

1304.87 158.5 76795 3 3 1.3 0.032 0.41 -1.02 D In

1306.04 226.5 76795 1 3 0.41 0.031 0.14 -1.50 D In

3 2P

4 - W *0 1 co o

o 989.46 78.0 101143 9 15 2.3 0.056 1.6 -0.30 E 1,2

2p3

( 2 D°)3s' (5 uv)

988.777 0.0 101135 5 7 2.3 0.047 0.76 -0.63 E In 990.210 158.5 101147 3 5 1.7 0.042 0.42 -0.90 E In 990.799 226.5 101155 1 3 1.2 0.054 0.18 -1.27 E In 988.658 0.0 101147 5 5 0.58 0.0085 0.14 - 1.37 E In

990.132 158.5 101155 3 3 0.95 0.014 0.14 -1.38 E In

988.581 0.0 101155 5 3 0.066 5.8 X 10-5 0.0094 -2.54 E In

4

1 D— ‘D° 1152.16 15868 102662 5 5 4.5 0.090 1.7 -0.35 E 1,2

(6 uv)

78
O I. Allowed Transitions — Continued

Vo. Transition

Array

Multiplet x(A) Ei( cm *) Ek( cm-1

) gi gk y4fci(10

8 sec

-1

) fik S(at.u.) log gf Accu

racy

- Source

5 2p

4 - ap 3 p

° 878.45 78.0 113916 9 9 3.2 0.037 0.96 -0.48 E 1,2

2p3

( 2 P°)3s"

877.885 0.0 113910 5 5 2.4 0.027 0.39 -0.87 E In

879.027 158.5 113921 3 3 0.79 0.0091 0.079 -1.56 E In

877.804 0.0 113921 5 3 1.3 0.0092 0.13 -1.34 E In

878.979 158.5 113927 3 1 3.2 0.012 0.11 -1.43 E In 879.108 158.5 113910 3 5 0.83 0.016 0.14 -1.32 E In

879.553 226.5 113921 1 3 1.1 0.038 0.11 -1.42 E In

6

0 Q 1Oh 999.494 15868 115918 5 3 3.9 0.035 0.57 -0.76 E 1,2

(7 uv)

7 *S — 1 P° 1217.64 33792 115918 1 3 2.0 0.13 0.53 - 0.88 E 1,2

(9 uv)

8 2p

4 ~ 3p _ 3 f)° 1026.6 78.0 97488 9 15 0.39 0.010 0.31 -1.04 D- 2 2p3

( 4S°)3d (4 uv)

1025.77 0.0 97488 5 7 0.39 0.0086 0.15 -1.36 D- Is 1027.42 158.5 97488 3 5 0.29 0.0077 0.078 -1.65 D- Is 1028.16 226.5 97488 1 3 0.20 0.010 0.035 -1.98 D- Is 1025.77 0.0 97488 5 5 0.097 0.0015 0.026 - 2.12 D- Is 1027.42 158.5 97488 3 3 0.16 0.0026 0.026 - 2.12 D—

i

Is 1025.77 0.0 97488 5 3 0.011 1.0 X 10“4 0.0017 -3.29 D- Is

9 2p

4 - W

T) 1 W *0o 811.37 78.0 123326 9 9 0.78 0.0077 0.18 -1.16 D- 2 2p3

( 2 D°)3c?'

10 *D — 1 F° 936.011 15868 124326 5 7 0.83 0.015 0.23 - 1.12 D- 2

(8 uv)

11 2p3 3s — 5 S°- 5 P 7773.4 73768 86629 5 15 0.340 0.922 118 0.664 B 4,5,8,

2p3

( 4 S°)3p (1) 11, ca

7771.96 73768 86631 5 7 0.340 0.431 55.1 0.333 B Is 7774.18 73768 86627 5 5 0.340 0.307 39.3 0.186 B Is 7775.40 73768 86625 5 3 0.340 0.184 23.6 -0.035 B Is

12 3 g°_ 3 p 8446.5 76795 88631 3 9 0.280 0.898 74.9 0.430 B 4, 8, 11 , (4) ca

13 2p33s'

3 D° — 3 D 8226.8 101143 113295 15 15 0.323 0.327 133 0.691 B 4, 6, ca 2p3

(2 D°)3p' (34)

8221.84 101135 113294 7 7 0.292 0.296 56.1 0.316 B Is 8230.01 101147 113295 5 5 0.211 0.214 29.0 0.029 B Is 8232.99 101155 113298 3 3 0.261 0.266 21.6 - 0.099 B Is 8221.84 101135 113295 7 5 0.0663 0.0480 9.09 -0.474 B Is 8227.64 101147 113298 5 3 0.0834 0.0508 6.88 -0.595 B Is 8230.01 101147 113294 5 7 0.0261 0.0371 5.03 -0.732 B Is 8235.31 101155 113295 3 5 0.0432 0.0732 5.95 -0.659 B Is

14 3

J)° _ 3p 7949.3 101143 113719 15 21 0.373 0.495 194 0.87 C 4, 6, ca

(35)

7947.56 101135 113714 7 9 0.373 0.454 83 0.50 C Is 7950.83 101147 113721 5 7 0.331 0.439 58 0.342 C Is 7952.18 101155 113727 3 5 0.313 0.495 38.8 0.171 C Is 7943.15 101135 113721 7 7 0.0417 0.0394 7.2 -0.56 C Is 7947.20 101147 113727 5 5 0.058 0.055 7.2 -0.56 C Is 7939.49 101135 113727 7 5 0.00165 0.00111 0.203 -2.109 C Is

15 3 jy

° — 3p [6242.5]? 101143 [117158]? 15 9 0.73 0.257 79 0.59 C 4

16 Q

O 1 8820.45 102662 113996 5 7 0.261 0.426 62 0.328 C 4, ca

(37)

17 60 1 6 7156.80 102662 116631 5 5 0.473 0.363 42.8 0.259 B 4, 11, ca

(38)

18 i D°-ip [9391.2]? 102662 [113307]? 5 3 0.215 0.171 26.4 - 0.069 C 4

766-655 0-66—7
O I. Allowed Transitions — Continued

No. Transition

Array

Multiplet x(A) Ei(cm 4 ) Ek{ cm 4) Si gk ^4fci(10

8sec

_1

) fik S(at.u.) log gf Accuracy

Source

19 3p°_ 3g [8073.7]? 113916 [126298]? 9 3 0.339 0.110 26.4 -0.003 C 4

20 2p33s" — 3p° — 3 J) 7477.3 113916 127286 9 15 0.408 0.570 126 0.710 B 4, 6, ca 2p3

( 2 P°)3p" (55)

7476.45 113910 127282 5 7 0.408 0.479 58.9 0.379 B Is 7479.06 113921 127288 3 5 0.306 0.428 31.6 0.108 B Is 7480.66 113927 127291 1 3 0.226 0.570 14.0 -0.244 B Is 7473.23 113910 127288 5 5 0.102 0.0856 10.5 - 0.369 B Is 7477.21 113921 127291 3 3 0.170 0.143 10.5 - 0.369 B Is 7471.36 113910 127291 5 3 0.0114 0.00571 0.702 - 1.545 B Is

21 3p° _ 3p [7194.6]? 113916 [127811]? 9 9 0.478 0.371 79 0.52 C 4

22 ip° ip 8508.63 115918 127668 3 3 0.289 0.314 26.4 - 0.026 C 4

23 ip°_lD 7886.31 115918 128595 3 5 0.370 0.575 44.8 0.236 B 4, 6, ca

(64)

24 ip°_iS 6653.78 115918 130943 3 1 0.600 0.133 8.72 -0.400 B 4, 11, ca

(65)

25 2p33s — 5 S°-5P 3947.29 73768 99095 5 15 0.00326 0.00229 0.149 -1.94 C 4,7

2p3

( 4 S°)4p (3)

26 3§° _ 3p 4368.30 76795 99680 3 9 0.0066 0.0056 0.242 -1.77 C 9,11

(5)

27 2p3

( 4 S°)3p — 3p _ 3£)° 7989.9 88631 101143 9 15 0.29 0.46 110 0.61 D 12 2p3

( 2 D°)3s' (19)

7995.12 88631 101135 5 7 0.29 0.38 50 0.28 D Is 7987.00 88630 101147 3 5 0.21 0.34 27 0.01 D Is 7982.41 88631 101155 1 3 0.16 0.46 12 -0.34 D Is 7987.34 88631 101147 5 5 0.072 0.068 9.0 -0.47 D Is 7981.97 88631 101155 3 3 0.12 0.11 9.0 -0.47 D Is [7982.3] 88631 101155 5 3 0.0080 0.0046 0.60 -1.64 D Is

28 2p3 3p- 5 P _5D

o 9263.9 86629 97420 15 25 0.419 0.90 412 1.130 C 4, ca 2p3

( 4 S°)Sd (8) 9265.99 86631 97420 7 9 0.419 0.69 148 0.69 C Is 9262.73 86627 97420 5 7 0.280 0.50 77 0.401 C Is 9260.88 86625 97420 3 5 0.147 0.315 28.8 - 0.025 C Is 9265.99 86631 97420 7 7 0.140 0.180 38.4 0.100 C Is 9262.73 86627 97420 5 5 0.245 0.315 48.0 0.197 C Is 9260.88 86625 97421 3 3 0.315 0.405 37.0 0.085 c Is 9265.99 86631 97420 7 5 0.0279 0.0257 5.5 -0.75 c Is 9262.73 86627 97421 5 3 0.105 0.081 12.4 - 0.393 c Is 9260.88 86625 97421 3 1 0.420 0.0180 16.5 -0.268 c Is

29 3p _ 3J)° 11287 88631 97488 9 15 0.235 0.75 250 0.83 c 4

30 2p33p — 5p_5S

° 11299 86629 95476 15 5 0.272 0.173 97 0.415 c 4, ca 2p3

( 4 S°)4s (7) 11302.2 86631 95476 7 5 0.127 0.173 45.1 0.084 c Is 11297.5 86627 95476 5 5 0.091 0.173 32.2 - 0.062 c Is 11295.0 86625 95476 3 5 0.054 0.173 19.3 -0.284 c Is

31 3p _ 3§° 13164 88631 96226 9 3 0.188 0.163 63 0.165 c 4, ca

80
O I. Allowed Transitions — Continued

No. Transition

Array

Multiplet MA) £i(cm‘') Ek(cm~1 ) g> gk /M10H sec->) fik S(at.u.) log gf Accuracy

Source

32 2p33p — 5 P — 5 D° 6157.3 86629 102865 15 25 0.0701 0.0664 20.2 -0.001 B ^

!•, 1

1

, ca 2p3

( 4 S°)4d (10)

6158.19 86631 102865 7 9 0.0701 0.0512 7.27 - 0.445 B Is 6156.78 86627 102865 5 7 0.0468 0.0372 3.77 -0.731 B Is 6155.99 86625 102865 3 5 0.0245 0.0232 1.41 -1.158 B Is 6158.19 86631 102865 7 7 0.0234 0.0133 1.89 -1.031 B Is 6156.78 86627 102865 5 5 0.0410 0.0233 2.36 - 0.934 B Is 6155.99 86625 102865 3 3 0.0527 0.0299 1.82 -1.047 B Is 6158.19 86631 102865 7 5 0.00467 0.00190 0.269 -1.877 B Is 6156.78 86627 102865 5 3 0.0175 0.00598 0.606 - 1.524 B Is 6155.99 86625 102865 3 1 0.0702 0.0133 0.808 -1.399 B Is

33 3p _ 3J)° 7002.1 88631 102908 9 15 0.0325 0.0398 8.3 - 0.446 C 4, 6, ca

(21)

34 2p33p' - 3J) _ 3p° [6106.5] 113295 [129667] 15 21 0.0460 0.0360 10.9 -0.268 C 4, 6, ca 2p3

( 2 D°)4<f (43)

35 3JT _ 3p° [6269.4] 113719 [129667] 21 21 0.0198 0.0117 5.1 -0.61 C 4, 6, ca

(48)

36 w •n 1 wo

o 6259.6 113719 129690 21 27 0.063 0.0475 20.6 -0.001 C 4, 6, ca

(50)

37 2p33p — 5 P- 5 S° 6455.0 86629 102116 15 5 0.0710 0.0148 4.71 - 0.654 B 1, 11, ca 2p3

( 4 S°)5s (9) 6456.01 86631 102116 7 5 0.0331 0.0148 2.20 - 0.985 B Is 6454.48 86627 102116 5 5 0.0237 0.0148 1.57 -1.131 B Is 6453.64 86625 102116 3 5 0.0142 0.0148 0.942 - 1.353 B Is

38 3p _ 3g° 7254.4 88631 102412 9 3 0.062 0.0162 3.48 -0.84 C 4, 6, ca

(20)

39 2p33p — 5P — 5 D° 5330.0 86629 105385 15 25 0.0197 0.0140 3.68 -0.68 C 4,6,7,

2p3

( 4 S°)5d (12) ca

5330.66 86631 105385 7 9 0.0196 0.0107 1.32 -1.124 C Is 5329.59 86627 105385 5 7 0.0131 0.0078 0.69 -1.407 c Is 5328.98 86625 105385 3 5 0.0069 0.00490 0.258 -1.83 c Is 5330.66 86631 105385 7 7 0.0066 0.00279 0.343 -1.71 c Is 5329.59 86627 105385 5 5 0.0115 0.00489 0.429 -1.61 c Is 5328.98 86625 105385 3 3 0.0148 0.0063 0.331 -1.72 c Is 5330.66 86631 105385 7 5 0.00131 4.00 x 10~4 0.0491 -2.55 c Is 5329.59 86627 105385 5 3 0.00491 0.00125 0.110 -2.203 c Is 5328.98 86625 105385 3 1 0.0197 0.00279 0.147 -2.077 c Is

40 2p33p — 5 P- 5 S° 5436.1 86629 105019 15 5 0.0305 0.00450 1.21 -1.170 c 4,5,6,

2p3

( 4 S°)6s (11) 7, ca

5436.83 86631 105019 7 5 0.0142 0.00451 0.57 -1.50 c Is 5435.76 86627 105019 5 5 0.0102 0.00450 0.403 -1.65 c Is 5435.16 86625 105019 3 5 0.0061 0.00451 0.242 -1.87 c Is

41 3p _ 3§° 6046.4 88631 105165 9 3 0.0234 0.00427 0.77 -1.415 c 4, 6, ca

(22)

81
Forbidden Transitions

The list of forbidden lines for O I is a very interesting one since it contains some of the very

few cases of experimental determinations of forbidden line strengths. This fortunate circumstance

is due to the appearance of strong forbidden lines in the aurora, so that the latter could be used as a “light source.” Extensive measurements by Omholt [1] have given, for the 5577 A line, a transition probability of 1.43 sec

-1 ± 14%, whereas Garstang [2] with a refined calculation has obtained

1.25 sec

-1

. For another case, namely the lifetime for the J D state, the averaged experimental

result [3, 4] is approximately 160 sec, whereas the theory [5, 7] gives 135 sec. In both instances

the mean value is adopted. Attempts have also been made in the laboratory to obtain experimental

results, but they are all subject to some doubt and are therefore omitted in this compilation.

Aside from applications in atmospheric physics, the importance of the above fines lies in the

circumstance that the experimental determinations give a reliable indication of the uncertainties

in the theory of forbidden fine strengths which in itself does not allow error estimates.

A number of other transitions in the p

4 configuration have been investigated by several authors.

All electric quadrupole fine strengths are taken from Garstang [6], since his estimate of the quadruple integral sq is the most advanced one available. Naqvi [5], and Yamanouchi and Horie [7],

in their calculations of magnetic dipole fine strengths, retain the spin-spin and spin-other-orbit

parameter in the transformation coefficients, while Garstang neglects it. Thus, their values are used for the 3 P — J D and 3 P — 4 S transitions, where this gives an improvement of about 15%. For

the latter fine, however, only Yamanouchi and Horie’s [7] data are employed, since Naqvi’s treat- ment of configuration interaction effects, which are important for this fine, appears to be inadequate

(see also general introduction).

References

[1] Omholt, A., Geofys. Publikasjoner Norske Videnskaps. Akad. Oslo 21, 1—38 (1959).

[2] Garstang, R. H., The Airglow and the Aurorae, 324—327 (ed. Armstrong and Dalgarno, Pergamon Press, New York,

1956).

[3] Stoffregen, W., and Derblom, H., Nature 185, 28—29 (1960).

[4] Omholt, A., Planetary and Space Science 2, 246-248 (1960).

[5] Naqvi, A. M., Thesis Harvard (1951).

[6] Garstang, R. H., Monthly Notices Roy. Astron. Soc. Ill, 115-124 (1951).

[7] Yamanouchi, T., and Horie, H., J. Phys. Soc. Japan 7, 52-56 (1952).

O I. Forbidden Transitions

No. Transition Multiplet x(A) Fifcm-1

) Ek{cm 4) gi gk Type of Aki ( sec x) S(at.u.) Accu- Source

Array Transition racy

1 2p4 — 2p4 3p 3p

[63.07 x 104

] 0.0 158.5 5 3 e 1.30 x 10-u 2.32 C 6

[63.07 X 104

] 0.0 158.5 5 3 m 8.95 x 10-5 2.50 B 5,6,7

[44.14 x 104

] 0.0 226.5 5 1 e 1.00 x 10-10 1.03 C 6

[14.70 X 105

] 158.5 226.5 3 1 m 1.70 x 10-5 2.00 B 5, 6,7

2

CO 1 6

(1 F)

6300.23 0.0 15867.7 5 5 e 2.4 X 10-5 7.1 x 10-4 D 6

6300.23 0.0 15867.7 5 5 m 5.1 x 10-3 2.37 x 10-4 C 3, 4, 5, 7 6363.88 158.5 15867.7 3 5 e 3.2 x 10-6 9.9 x 10-5 D 6

6363.88 158.5 15867.7 3 5 m 1.64 x 10-3 7.9 X 10-5 C 3, 4, 5, 7 [6391.6] 226.5 15867.7 1 5 e 1.1 x 10-6 3.5 X 10-5 D 6

3

3 p_lS

(2 F)

[2958.4] 0.0 33792.4 5 1 e 3.7 X 10-4 5.0 X 10-5 D 6

2972.3 158.5 33792.4 3 1 m 0.067 6.5 X 10-5 C 7

4 *D — *S 5577.35 15867.7 33792.4 5 1 e 1.34 4.31 C + 1,2

(3 F)

82
On

Ground State Is2 2s2 2

p

3 4 S°3/ 2

Ionization Potential 35.108 eV = 283244 cm-'

Allowed Transitions

List of tabulated lines:

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

424.66 22 3007.4 84 3488.18 36

429.918 10 3007.74 85 3496.27 36

430.041 10 3008.28 85 3712.75 25

430.177 10 3008.8 84 3727.33 25

440.58 18 3009.7 85 3729.34 73

442.03 17 3009.81 85 3735.9 73

445.62 16 3010.0 85 3735.94 73

464.78 21 3010.5 85 3739.92 69

468.77 20 3012.8 85 3749.49 25

470.41 19 3013.0 85 3762.63 69

481.66 13 3013.37 84 3777.60 69

483.752 12 3014.0 84 3794.48 70

483.796 12 3019.8 84 3803.14 70

484.03 12 3032.08 86 3821.68 70

485.086 11 3032.50 86 3830.45 70

485.47 11 3047.5 86 3833.10 43

485.515 11 3113.71 66 3842.82 42

515.498 15 3122.62 66 3843.58 43

515.640 15 3124.02 66 3847.89 42

517.937 14 3129.44 66 3850.81 42

518.242 14 3134.32 66 3851.04 42

539.086 5 3134.82 66 3851.47 43

539.547 5 3138.44 66 3856.16 42

539.853 5 3139.77 66 3857.18 43

555.056 8 3270.9 71 3863.50 42

555.121 8 3270.98 71 3864.13 41

600.585 9 3273.52 71 3864.45 42

616.291 6 3277.69 67 3864.68 42

616.363 6 3282.0 39 3872.45 41

617.051 6 3287.59 67 3874.10 41

644.148 4 3290.13 67 3875.82 43

672.948 7 3295.13 67 3882.20 42

673.768 7 3301.56 67 3882.45 41

718.484 2 3305.15 67 3883.15 42

718.562 2 3306.60 67 3893.53 41

796.661 3 3377.20 38 3896.30 41

832.754 1 3390.25 38 3907.45 41

833.326 1 3407.38 72 3911.96 33

834.462 1 3409.84 72 3912.09 33

2733.34 65 3447.98 68 3919.29 33

2747.46 65 3460.6 26 3926.58 41

3000.1 84 3470.42 68 3945.05 30

3002.2 84 3470.81 68 3954.37 30

3006.0 84 3474.94 37 3967.44 47

3007.08 85 3479.7 26 3973.26 30

83
List of tabulated lines — Continued

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

3982.72 30 4272.3 34 4596.17 31

3985.46 47 4275.52 78 4598.2 50

4060.8 82 4276.71 77 4602.11 81

4069.64 40 4276.71 78

4069.90 40 4609.42 81

4277.40 78 4613.11 81

4072.16 40 4277.90 78 4638.85 23

4075.87 40 4281.40 77 4641.81 23

4078.86 40 4282.82 77 4649.14 23

4084.66 46 4282.96 78

4085.12 40 4650.84 23

4283.13 78 4661.64 23

4087.16 76 4283.75 78 4673.75 23

4089.30 76 4284.0 78 4676.23 23

4092.94 40 4284.4 78 4690.97 62

4094.18 40 4288.8 77

4095.63 76 4691.47 62

4288.83 77 4696.36 23

4096.18 76 4294.82 77 4698.48 60

4096.54 46 4295.5 29 4699.21 49

4097.26 45 4303.82 77 4699.21 60

4097.26 76 4317.14 24

4103.02 45 4701.23 62

4319.63 24 4701.76 62

4104.74 45 4319.93 63 4703.18 60

4105.00 45 4325.77 24 4705.36 49

4106.03 40 4328.62 63 4710.04 48

4108.75 76 4329.0 29

4109.3 76 4741.71 49

4336.87 24 4751.34 48

4109.8 59 4340.36 79 4752.70 48

4110.20 59 4342.00 79 4845.0 54

4110.80 45 4345.56 24 4856.49 53

4112.03 46 4347.43 32

4113.82 59 4856.76 53

4349.1 32 4861.03 61

4114.4 76 4349.43 24 4864.95 53

4119.22 45 4351.27 32 4871.58 61

4120.28 45 4351.5 32 4872.2 61

4120.55 45 4359.38 51

4121.48 44 4890.93 52

4366.90 24 4906.88 52

4126.1 76 4369.28 51 4924.60 52

4129.34 44 4371.3 79 4941.12 56

4132.81 44 4395.95 51 4943.06 56

4140.74 44 4406.02 51

4141.96 64 4955.78 56

4414.91 28 5160.02 55

4142.08 64 4416.98 28 5176.00 55

4142.24 64 4443.05 57 5190.56 55

4143.4 64 4443.7 57 5206.73 55

4143.52 64 4447.7 57

4143.77 64 6627.62 75

4448.21 57 6640.90 27

4145.6 64 4452.38 28 6666.94 75

4145.90 64 4465.40 35 6678.19 75

4146.09 64 4466.6 80 6718.1 75

4153.30 44 4467.88 35

6721.35 4156.54 44 27

4469.32 35 6810.6 74

4169.23

4185.46

4189.6

4189.79

4253.9

44

58

58

58

83

4489.48

4491.25

4539.6

4563.2

4590.97

80

80

50

50

31

6844.1

6846.97

6869.74

6885.07

6895.29

74

74

74

74

74

4263.2 77

4596.0 31 6906.54

6908.11

74

74

6910.75 74
Most data on the vacuum ultraviolet lines are taken from the self-consistent field calculations

by Kelly [1] in which exchange effects have been considered. The data for the strong 2s2 2p3 — 2s2p4 and 2p3 — 2p2 3s transitions are probably quite uncertain since these are sensitively affected

by configuration interaction which has not been taken into account. Two transitions of the 2s22p3 — 2s2p4 array could be taken, however, from the calculations of Levinson et al. [2] in which the

effects of configuration interaction have been approximately included.

For the multiplets in the visible four data sources have been selected: simplified self-consistent

field calculations by Kelly [3] (with exchange effects approximately taken into account), the Coulomb approximation by Bates and Damgaard, emission measurements by Mastrup and Wiese [4],

and intermediate coupling calculations by Garstang [5]. The absolute multiplet values have been

obtained by averaging the results of the first three methods mentioned. The agreement is quite

remarkable, often within 30%. For the breakdown of the multiplets into lines the intermediate

coupling calculations by Garstang [5] and, whenever available, the experimental results by Mastrup

and Wiese [4] are employed, both normalized to the absolute total multiplet values. The two sets of data agree very well, while LS-coupling values show large deviations for some multiplets of the

3p — 3d array.

The absolute values of the intercombination lines are obtained by normalizing Garstang’s

coupling calculations [5] to the Coulomb approximation, as he has proposed in his paper.

References

[1] Kelly, P. S., Astrophys. J. 140, 1247-1268 (1964).

[2] Levinson, I. B., Bolotin, A. B., and Levin, L. I., Trudy Vil’nyusskogo Univ. 5, 49—55 (1956).

[3] Kelly, P. S., J. Quant. Spectrosc. Radiat. Transfer 4, 117-148 (1964).

[4] Mastrup, F., and Wiese, W. L., Z. Astrophys. 44, 259-279 (1958).

[5] Garstang, R. H., Monthly Notices Roy. Astron. Soc. 114, 118-133 (1954).

O II. Allowed Transitions

No. Transition Multiplet mA) £,(cm ') Ek(cm ') gi gk Aki(108 sec ') /» S(at.u.) log gf Accu- Source

Array racy

1 2s2 2p3 — 4 S°- 4 P 833.80 0.0 119933 4 12 14 0.43 4.7 0.23 E 1 2s2p 4 (1 uv)

834.462 0.0 119838 4 6 13 0.21 2.3 -0.08 E Is 833.326 0.0 120001 4 4 14 0.15 1.6 -0.23 E Is 832.754 0.0 120084 4 2 14 0.07 0.77 -0.55 E Is

2

2 D° — 2 D 718.54 26817 165991 10 10 32 0.25 5.9 0.40 E 1 (4 uv)

718.484 26808 165988 6 6 30 0.23 3.3 0.14 E Is 718.562 26829 165996 4 4 29 0.22 2.1 -0.05 E Is 718.484 26808 165996 6 4 3.1 0.016 0.23 -1.01 E Is 718.562 26829 165988 4 6 2.1 0.024 0.23 -1.01 E Is

3 2p°_2J)

(11 uv)

796.661 40467 165991 6 10 4.4 0.070 1.1 -0.38 E 2

4 2P° _ 2C

(13 uv)

644.148 40467 195710 6 2 72 0.15 1.9 -0.05 E 2

5 2p

3 - 4 S°- 4 P 539.37 0.0 185402 4 12 8.6 0.11 0.80 -0.35 E 1 2p2

( 3P)3s (2 uv)

539.086 0.0 185499 4 6 8.6 0.056 0.40 -0.65 E Is 539.547 0.0 185341 4 4 8.6 0.037 0.27 -0.82 E Is 539.853 0.0 185235 4 2 8.6 0.019 0.13 - 1.13 E Is

6

2 D° — 2 P 616.56 26817 189008 10 6 18 0.061 1.2 -0.21 E 1 (5 uv)

616.291 26808 189068 6 4 16 0.061 0.74 -0.44 E Is 617.051 26829 188888 4 2 18 0.051 0.41 - 0.69 E Is 616.363 26829 189068 4 4 1.8 0.010 0.083 -1.39 E Is

85
Oil. Allowed Transitions — Continued

No. Transition Multiplet x(A) Ei(cm ') EiAcm ’) gi Aki( 108 sec ') ft S(at.u.) log gf Accu- Source

Array racy

7 2p° _ 2p 673.22 40467 189008 6 6 9.2 0.063 0.84 -0.42 E 1 (12 uv)

672.948 40467 189068 4 4 7.7 0.052 0.46 -0.68 E Is 673.768 40468 188888 2 2 6.2 0.042 0.19 -1.08 E Is 673.768 40467 188888 4 2 3.1 0.010 0.093 -1.38 E Is 672.948 40468 189068 2 4 1.5 0.021 0.093 -1.38 E Is

8 2p

3 - 2 D° — 2 D 555.08 26817 206972 10 10 15 0.067 1.2 -0.17 E 1 2p2(‘D)3s' (6 uv)

555.056 26808 206971 6 6 14 0.063 0.69 -0.42 E Is 555.121 26829 206972 4 4 13 0.061 0.44 -0.62 E Is 555.056 26808 206972 6 4 1.5 0.0045 0.049 -1.57 E Is 555.121 26829 206971 4 6 0.97 0.0067 0.049 -1.57 E Is

9

2p° _ 2J) (14 uv)

600.585 40467 206972 6 10 4.3 0.039 0.46 -0.63 E 1

10 2p3 — 4S°- 4 P 430.09 0.0 232511 4 12 39 0.32 1.8 0.11 D- 1 2p2

( 3 P)3d (3 uv)

430.177 0.0 232463 4 6 39 0.16 0.91 -0.19 D- Is 430.041 0.0 232536 4 4 39 0.11 0.61 -0.37 D- Is 429.918 0.0 232603 4 2 39 0.054 0.31 -0.67 D- Is

11 2£)° — 2p 485.27 26817 232889 10 14 25 0.12 1.9 0.08 D- 1 (8 uv)

485.086 26808 232959 6 8 25 0.12 1.1 -0.16 D- Is 485.515 26829 232796 4 6 23 0.12 0.78 -0.31 D- Is [485.47] 26808 232796 6 6 1.6 0.0058 0.056 -1.46 D- Is

12 tNJ o

0 1 to 483.91 26817 233468 10 6 0.84 0.0018 0.028 -1.75 D- 1 (9 uv)

483.976 26808 233430 6 4 0.76 0.0018 0.017 -1.97 D- Is 483.752 26829 233544 4 2 0.84 0.0015 0.0094 -2.23 D- Is [484.03] 26829 233430 4 4 0.084 3.0 X 10-4 0.0019 -2.93 D- Is

13 2 D° — 2 D

(10 uv)

481.66 26817 234434 10 10 5.4 0.019 0.30 -0.73 D- 1

14 2p° 2p 518.13 40467 233468 6 6 11 0.045 0.46 -0.57 D- 1 (16 uv)

518.242 40467 233430 4 4 9.4 0.038 0.26 -0.82 D- Is 517.937 40468 233544 2 2 7.5 0.030 0.10 -1.22 D- Is 517.937 40467 233544 4 2 3.7 0.0075 0.051 -1.52 D- Is 518.242 40468 233430 2 4 1.9 0.015 0.051 -1.52 D- Is

15 2p°_2[) 515.55 40467 234434 6 10 15 0.097 0.98 -0.24 D- 1 (17 uv)

515.498 40467 234454 4 6 15 0.087 0.59 -0.46 D- Is 515.640 40468 234402 2 4 12 0.097 0.33 -0.71 D- Is 515.640 40467 234402 4 4 2.4 0.0097 0.066 . -1.41 D- Is

16 2p

3 - 2J)°_2p 445.62 26817 251222 10 14 26 0.11 1.6 0.04 D- 1 2p2 (‘D)3<f

17 2 D° — 2 D 442.03 26817 253048 10 10 21 0.063 0.91 -0.20 D- 1

18 2 J)° _ 2p 440.58 26817 253791 10 6 7.7 0.013 0.20 -0.87 D- 1

19 2p° 2J) 470.41 40467 253048 6 10 6.5 0.036 0.33 -0.67 D- 1

20 2p° _ 2p 468.77 40467 253791 6 6 12 0.039 0.36 -0.64 D- 1

21 2p° 2g 464.78 40467 255622 6 2 16 0.017 0.16 -0.99 D- 1

22 2p3 — 2 P° —

D [424.66] 40467 [275951] 6 10 19 0.086 0.72 -0.29 D- 1

86
OH. Allowed Transitions — Continued

No. Transition

Array

Multiplet X(A) 1 E £*(cm ’) gi gk /4*:,(10

H sec *) S(at.u.) •og gf Accuracy

Source

23 2p2 3s - O

cu 1 Q 4651.5 185402 206895 12 20 1.02 0.55 101 0.82 C 3, 4, ca 2p2

( 3P)3p (1) 4649.14 185499 207003 6 8 1.04 0.448 41.1 0.429 C 4n, 5n

4641.81 185341 206878 4 6 0.79 0.381 23.3 0.183 C 4n, 5n

4638.85 185235 206786 2 4 0.422 0.272 8.3 - 0.264 C 4n, 5n

4676.23 185499 206878 6 6 0.257 0.084 7.8 -0.296 c 4n, 5n

4661.64 185341 206786 4 4 0.52 0.169 10.4 -0.169 c 4n, 5n

4650.84 185235 206731 2 2 0.82 0.265 8.1 -0.277 c 4n, 5n

4696.36 185499 206786 6 4 0.0372 0.0082 0.76 -1.308 c 4n, 5n

4673.75 185341 206731 4 2 0.131 0.0214 1.32 -1.067 c 4n, 5n

24 1 o 4341.3 185402 208431 12 12 1.05 0.297 51 0.55 c 3, 4, ca

(2) 4349.43 185499 208484 6 6 0.74 0.211 18.1 0.102 c 4n, 5n

4336.87 185341 208392 4 4 0.164 0.0462 2.64 -0.73 c 4n, 5n

4325.77 185235 208346 2 2 0.155 0.0435 1.24 -1.060 c 4n, 5n

4366.90 185499 208392 6 4 0.50 0.096 8.3 -0.239 c 4n, 5n 4345.56 185341 208346 4 2 0.89 0.125 7.2 -0.300 c 4n, 5n

4319.63 185341 208484 4 6 0.284 0.119 6.8 -0.321 c 4n, 5n

4317.14 185235 208392 2 4 0.424 0.237 6.7 -0.325 c 4n, 5n

25 4p_4S

° 3735.9 185402 212162 12 4 1.77 0.123 18.2 0.170 c 3, 4, ca

(3) 3749.49 185499 212162 6 4 0.90 0.127 9.4 -0.119 c 4n, 5

n

3727.33 185341 212162 4 4 0.59 0.122 6.0 -0.312 c 4n, 5

n

3712.75 185235 212162 2 4 0.280 0.116 2.83 -0.64 c 4n, 5n

26 ap 2p°

[3479.7] 185499 214229 6 4 0.00101 1.22 X 10-4 0.0084 -3.135 c 5

[3460.6] 185341 214229 4 4 0.00154 2.76 X 10-4 0.0126 -2.96 c 5

27 2p 2g° 6694.4 189008 203942 6 2 0.287 0.064 8.5 -0.414 c 3, ca

(4) 6721.35 189068 203942 4 2 0.189 0.064 5.7 -0.59 c Is 6640.90 188888 203942 2 2 0.098 0.065 2.83 -0.89 c Is

28 2p 2J)° 4418.1 189008 211636 6 10 1.13 0.55 48.1 0.52 c 3, 4, ca

(5) 4414.91 189068 211713 4 6 1.15 0.50 29.3 0.305 c 4n, 5

n

4416.98 188888 211522 2 4 0.95 0.55 16.1 0.044 c 4n, 5n

4452.38 189068 211522 4 4 0.154 0.0457 2.68 -0.74 c 4n, 5n

29 2p_4S

° [4329.0] 189068 212162 4 4 0.00157 4.42 X 10-4 0.0252 -2.75 c 5

[4295.5] 188888 212162 2 4 0.268 X 10-3 1.48 x 10"4 0.00420 -3.53 c 5

30 2p _ 2p° 3966.9 189008 214210 6 6 1.46 0.343 26.9 0.314 c 3, 4, ca

(6) 3973.26 189068 214229 4 4 1.27 0.300 15.7 0.080 c 4n, 5n 3954.37 188888 214170 2 2 0.95 0.222 5.8 -0.353 c 4n, 5n

3982.72 189068 214170 4 2 0.447 0.053 2.79 -0.67 c 4n, 5n

3945.05 188888 214229 2 4 0.217 0.101 2.63 -0.69 c 4n, 5

n

31 2p2 3s' - O Q 1 Uh (N 4593.2 206972 228737 10 14 1.11 0.490 74 0.69 c 3, 4, ca 2p2

(

1 D)3p' (15)

4590.97 206971 228747 6 8 1.11 0.466 42.3 0.447 c 5n 4596.17 206972 228723 4 6 1.03 0.487 29.5 0.290 c 5n

[4596.0] 206971 228723 6 6 0.079 0.0251 2.28 -0.82 c 5n 32 O Q 1 Q 4349.7 206972 229955 10 10 1.04 0.296 42.4 0.471 c 3, 4, ca

(16)

4351.27 206971 229947 6 6 0.97 0.275 23.6 0.217 c 5n 4347.43 206972 229968 4 4 0.94 0.267 15.3 0.029 c 5n

[4349.1] 206971 229968 6 4 0.102 0.0192 1.65 -0.94 c 5n

[4351.5] 206972 229947 4 6 0.075 0.0318 1.82 -0.90 c 5n

87
OH. Allowed Transitions — Continued

No. Transition Multiplet mA) Ei(cm *) Ek(cm ') g> gk ^a-,( 108 sec- 1 ) fk S(at.u.) log gf Accu- Source

Array racy

33 2J) _ 2p° 3914.4 206972 232511 10 6 1.40 0.193 24.9 0.286 c 3, 4, ca

(17)

3911.96 206971 232527 6 4 1.27 0.194 15.0 0.066 c 5 n 3919.29 206972 232480 4 2 1.40 0.161 8.3 -0.192 c 5n 3912.09 206972 232527 4 4 0.137 0.0314 1.62 -0.90 c 5n

34 2p23s"

2g _ 2p° [4272.3] [226851] [250251] 2 6 1.08 0.89 25.0 0.250 c 3, ca 2p2

(

1 S)3p"

35 2s2p33s'"- 6g°_6p 4467.2 [245396] [267775] 6 18 0.92 0.83 73 0.70 c ca

2s2p3

( 5 S°)

3p'"

(94)

4465.40 [245396] [267783] 6 8 0.92 0.367 32.4 0.343 c Is 4467.88 [245396] [267771] 6 6 0.92 0.275 24.3 0.218 c Is 4469.32 [245396] [267763] 6 4 0.92 0.184 16.2 0.042 c Is

36 2p23p - 2 S°- 4 P

2p2

( 3P)3a? (7) 3496.27 203942 232536 2 4 0.0111 0.00408 0.094 -2.088 c 5 3488.18 203942 232603 2 2 0.0084 0.00152 0.0350 -2.52 c 5

37 2 S° — 4 D

(8) 3474.94 203942 232712 2 2 0.0085 0.00153 0.0351 -2.51 c 5

38 2g° 2p 3385.9 203942 233468 2 6 1.86 0.96 21.4 0.283 c 3, ca

(9) 3390.25 203942 233430 2 4 1.86 0.64 14.3 0.108 c Is 3377.20 203942 233544 2 2 1.88 0.321 7.1 -0.193 c Is

39 2 S° — 2 D

[3282.0] 203942 234402 2 4 0.0168 0.0054 0.117 -1.97 c 5

40 4 D° — 4F 4074.8 206895 231429 20 28 1.98 0.69 185 1.140 c 3, ca

(10)

4075.87 207003 231530 8 10 1.98 0.62 66 0.69 c Is 4072.16 206878 231428 6 8 1.70 0.56 45.3 0.53 c Is 4069.90 206786 231350 4 6 1.49 0.55 29.7 0.346 c Is 4069.64 206731 231296 2 4 1.39 0.69 18.5 0.140 c Is 4092.94 207003 231428 8 8 0.278 0.070 7.5 -0.253 c Is 4085.12 206878 231350 6 6 0.478 0.120 9.7 -0.144 c Is 4078.86 206786 231296 4 4 0.55 0.138 7.4 -0.259 c Is 4106.03 207003 231350 8 6 0.0187 0.00354 0.383 -1.55 c Is 4094.18 206878 231296 6 4 0.0390 0.0065 0.53 - 1.406 c Is

41 4J)° 4p 3902.7 206895 232511 20 12 0.063 0.0086 2.21 -0.76 c 3, ca (ID

3926.58 207003 232463 8 6 0.0493 0.0085 0.88 -1.165 c Is 3896.30 206878 232536 6 4 0.0397 0.0060 0.464 -1.442 c Is 3872.45 206786 232603 4 2 0.0321 0.00361 0.184 -1.84 c Is 3907.45 206878 232463 6 6 0.0113 0.00258 0.199 -1.81 c Is 3882.45 206786 232536 4 4 0.0204 0.00462 0.236 -1.73 c Is 3864.13 206731 232603 2 2 0.0323 0.0072 0.184 -1.84 c Is 3893.53 206786 232463 4 6 0.00126 4.31 x 10“4 0.0221 -2.76 c Is 3874.10 206731 232536 2 4 0.00321 0.00144 0.0368 -2.54 c Is

42 4 D° — 4 D 3867.2 206895 232746 20 20 0.58 0.130 33.2 0.416 c 3, ca

(12)

3882.20 207003 232754 8 8 0.493 0.111 11.4 -0.050 c Is 3864.45 206878 232748 6 6 0.334 0.075 5.7 -0.348 c Is 3851.04 206786 232746 4 4 0.236 0.052 2.66 -0.68 c Is 3847.89 206731 232712 2 2 0.295 0.066 1.66 -0.88 c Is 3883.15 207003 232748 8 6 0.109 0.0185 1.89 -0.83 c Is 3864.68 206878 232746 6 4 0.204 0.0304 2.32 -0.74 c Is 3856.16 206786 232712 4 2 0.293 0.0327 1.66 -0.88 c Is 3863.50 206878 232754 6 8 0.083 0.0248 1.89 -0.83 c Is 3850.81 206786 232748 4 6 0.137 0.0458 2.32 -0.74 c Is 3842.82 206731 232746 2 4 0.148 0.066 1.66 -0.88 c Is

88
Oil. Allowed Transitions — Continued

No. Transition Multiplet x(A) £i(cm *) Ek(cm ') gi gk /4a-,( 108 sec ') fik S(at.u.) log gf Accu- Source

Array racy

43 4 D

°_2F

(13)

3851.47 207003 232959 8 8 0.0223 0.0050 0.50 -1.402 C 5

3857.18 206878 232796 6 6 0.0448 0.0100 0.76 -1.222 C 5

3875.82 207003 232796 8 6 0.0095 0.00161 0.164 -1.89 C 5

3833.10 206878 232959 6 8 0.0095 0.00279 0.211 -1.78 C 5 3843.58 206786 232796 4 6 0.0222 0.0074 0.374 -1.53 C 5

44 "d0 1 "9 4151.7 208431 232511 12 12 1.01 0.261 42.8 0.496 c 3, 4 ca

(19)

4169.28 208484 232463 6 6 0.220 0.057 4.73 -0.463 c 5n

4140.74 208392 232536 4 4 0.0236 0.0061 0.331 -1.61 c 5n

4121.48 208346 232603 2 2 0.93 0.237 6.4 -0.324 c 5n 4156.54 208484 232536 6 4 0.157 0.0270 2.22 -0.79 c 5n 4129.34 208392 232603 4 2 0.150 0.0191 1.04 — 1.116 c 5n 4153.30 208392 232463 4 6 0.77 0.298 16.3 0.076 c 5n

4132.81 208346 232536 2 4 0.84 0.430 11.7 -0.066 c 5n

45 4p° 4J) 4111.4 208431 232746 12 20 1.49 0.63 102 0.88 c 3, ca

(20)

4119.22 208484 232754 6 8 1.48 0.50 40.8 0.478 c Is 4104.74 208392 232748 4 6 1.04 0.396 21.4 0.200 c Is 4097.26 208346 232746 2 4 0.63 0.315 8.5 -0.201 c Is 4120.28 208484 232748 6 6 0.443 0.113 9.2 -0.170 c Is 4105.00 408392 232746 4 4 0.80 0.202 10.9 -0.093 c Is 4103.02 208346 232712 2 2 1.25 0.315 8.5 -0.201 c Is 4120.55 208484 232746 6 4 0.074 0.0125 1.02 -1.124 c Is 4110.80 208392 232712 4 2 0.248 0.0314 1.70 -0.90 c Is

46 4p° _ 2p

(21)

4084.66 208484 232959 6 8 0.065 0.0216 1.74 -0.89 c 5 4096.54 208392 232796 4 6 0.092 0.0347 1.87 -0.86 c 5 4112.03 208484 232796 6 6 0.109 0.0275 2.23 -0.78 c 5

47 4p° 2p

(22)

3967.44 208346 233544 2 2 0.0133 0.00314 0.082 -2.203 c 5 3985.46 208346 233430 2 4 0.0084 0.00400 0.105 -2.097 c 5

48 1 Q

o MQ

(24)

4751.34 211713 232754 6 8 0.059 0.0264 2.48 -0.80 c 5 4710.04 211522 232748 4 6 0.170 0.085 5.3 - 0.469 c 5

4752.70 211713 232748 6 6 0.0088 0.00300 0.281 -1.75 c 5

49 Q

O 1 4703.9 211636 232889 10 14 1.38 0.64 99 0.81 c 3, ca

(25)

4705.36 211713 232959 6 8 1.38 0.61 57 0.56 c Is 4699.21 211522 232796 4 6 1.29 0.64 39.6 0.408 c Is 4741.71 211713 232796 6 6 0.090 0.0302 2.83 -0.74 c Is

50 2J)° _ 2p 4579.2 211636 233468 10 6 0.0418 0.0079 1.19 -1.103 c 3, ca

[4598.2] 211713 233430 6 4 0.0372 0.0079 0.71 -1.326 c Is [4539.6] 211522 233544 4 2 0.0430 0.0066 0.397 -1.58 c Is [4563.2] 211522 233430 4 4 0.0423 0.00132 0.079 -2.278 c Is

51 2 D° — 2 D 4385.3 211636 234434 10 10 0.430 0.124 17.9 0.093 c 3, ca

(26)

4395.95 211713 234454 6 6 0.398 0.115 10.0 -0.161 c Is 4369.28 211522 234402 4 4 0.391 0.112 6.4 -0.349 c Is 4406.02 211713 234402 6 4 0.0424 0.0082 0.72 -1.307 c Is 4359.38 211522 234454 4 6 0.0292 0.0125 0.72 - 1.302 c Is

89
Oil. Allowed Transitions — Continued

No. Transition Multiplet MA) Ei(cm ') Ek(c m >) Si fifr /l/nllO8 sec ! ) fik S(at.u.) log gf Accu- Source

Array racy

52 4 S°- 4P 4913.0 212162 232511 4 12 0.67 0.73 47.3 0.466 C 3, ca

(28)

4924.60 212162 232463 4 6 0.67 0.365 23.7 0.165 C Is 4906.88 212162 232536 4 4 0.68 0.245 15.8 -0.011 c Is 4890.93 212162 232603 4 2 0.68 0.122 7.9 -0.310 c Is

53 4 S° — 4 D

(29)

4856.49 212162 232748 4 6 0.094 0.050 3.19 -0.70 c 5 4856.76 212162 232746 4 4 0.176 0.062 3.97 -0.61 c 5 4864.95 212162 232712 4 2 0.235 0.0417 2.67 -0.78 c 5

54 4 S° - 2F

(30)

4845.0 212162 232796 4 6 0.0094 0.0050 0.316 -1.70 c 5

55 2p° _ 2p 5191.1 214210 233468 6 6 0.53 0.213 21.8 0.106 c 3, 4, ca

(32)

5206.73 214229 233430 4 4 0.391 0.160 10.9 -0.197 c 4n, 5n

5160.02 214170 233544 2 2 0.350 0.140 4.75 -0.55 c 4n, 5n

5176.00 214229 233544 4 2 0.171 0.0343 2.34 -0.86 c 4n, 5n 5190.56 214170 233430 2 4 0.137 0.111 3.78 -0.66 c 4n, 5n

56 2p° 2J) 4943.2 214210 234434 6 10 1.07 0.65 64 0.59 c 3, 4, ca

(33)

4943.06 214229 234454 4 6 1.06 0.58 37.9 0.367 c 5n 4941.12 214170 234402 2 4 0.83 0.61 19.7 0.083 c 5n

4955.78 214229 234402 4 4 0.256 0.094 6.1 - 0.424 c 5n

57 2p2 3p' — 2p° _ 2p 4446.1 228737 251222 14 14 0.59 0.176 36.0 0.391 c 3, 4, ca 2p2

(

1 D)3<f (35)

4448.21 228747 251221 8 8 0.57 0.169 19.8 0.131 c Is 4443.05 228723 251224 6 6 0.57 0.167 14.7 0.002 c Is [4447.7] 228747 251224 8 6 0.0282 0.0063 0.74 -1.299 c Is [4443.7] 228723 251221 6 8 0.0212 0.0084 0.74 -4.299 c Is

58 2p° _ 3Q 4187.9 228737 252608 14 18 2.51 0.85 164 1.075 c 3, 4, ca

(36)

4189.79 228747 252608 8 10 2.51 0.83 91 0.82 c Is 4185.46 228723 252609 6 8 2.43 0.85 70 0.71 c Is [4189.6] 228747 252609 8 8 0.090 0.0236 2.60 -0.72 c Is

59 2p° _ 2J) 4112.3 228737 253048 14 10 0.132 0.0239 4.53 - 0.476 c 3, ca

(37)

4113.82 228747 253048 8 6 0.126 0.0239 2.59 -0.72 c Is 4110.20 228723 253046 6 4 0.132 0.0223 1.81 -0.87 c Is [4109.8] 228723 253048 6 6 0.0063 0.00159 0.129 -2.021 c Is

60 2J)° _ 2p 4700.8 229955 251222 10 14 0.88 0.410 63 0.61 c 3, ca

(40)

4699.21 229947 251221 6 8 0.88 0.390 36.2 0.369 c Is 4703.18 229968 251224 4 6 0.82 0.410 25.4 0.215 c Is 4698.48 229947 251224 6 6 0.059 0.0195 1.81 -0.93 c Is

61 2p° _ 2 £) 4868.1 232511 253048 6 10 0.437 0.259 24.9 0.191 c 3, ca

(57)

4871.58 232527 253048 4 6 0.435 0.232 14.9 -0.032 c Is 4861.03 232480 253046 2 4 0.366 0.259 8.3 -0.285 c Is [4872.2] 232527 253046 4 4 0.073 0.0259 1.66 -0.99 c Is

62 2p° _ 2p 4698.0 232511 253791 6 6 1.05 0.347 33.2 0.319 c 3, ca

(58)

4701.23 232527 253792 4 4 0.87 0.289 17.9 0.063 c Is 4691.47 232480 253790 2 2 0.70 0.232 7.2 -0.334 c Is 4701.76 232527 253790 4 2 0.349 0.058 3.58 -0.64 c Is 4690.97 232480 253792 2 4 0.176 0.116 3.58 -0.64 c Is

90
Oil. Allowed Transitions — Continued

No. Transition

Array

Multiplet X(A) o ET £*(cm-1

) gi Aki(\0H sec ') /« S(at.u.) log gf Accuracy

Source

63 2p° 2g 4325.7 232511 255622 6 2 1.81 0.170 14.5 0.008 C 3, ca

(61)

4328.62 232527 255622 4 2 1.21 0.170 9.7 -0.168 C Is 4319.93 232480 255622 2 2 0.61 0.170 4.83 -0.469 C Is 64 2s2p33p" ' — 6p 6J)° 4144.4 [267775] [291897] 18 30 0.211 0.090 22.2 0.211 C ca

2s2p3

( 5S°) (106)

3d"'

4146.09 [267783] [291896] 8 10 0.210 0.068 7.4 -0.266 C Is 4143.77 [267771] [291897] 6 8 0.135 0.0464 3.80 -0.55 c Is 4142.24 [267763] [291898] 4 6 0.066 0.0253 1.38 -0.99 c Is 4145.90 [267783] [291897] 8 8 0.075 0.0194 2.12 -0.81 c Is 4143.52 [267771] [291898] 6 6 0.129 0.0331 2.71 -0.70 c Is 4141.96 [267763] [291899] 4 4 0.148 0.0380 2.07 -0.82 c Is [4145.6] [267783] [291898] 8 6 0.0167 0.00323 0.353 -1.59 c Is [4143.4] [267771] [291899] 6 4 0.063 0.0108 0.89 -1.186 c Is 4142.08 [267763] [291900] 4 2 0.211 0.0271 1.48 -0.96 c Is

<& 2p23p - 2g° 2p 2738.0 203942 240454 2 6 0.36 0.12 2.2 -0.61 D 3, ca

2p2

( 3P)4s (20 uv)

2733.34 203942 240516 2 4 0.37 0.082 1.5 -0.79 D Is 2747.46 203942 240329 2 2 0.36 0.041 0.74 -1.09 D Is

66 4 D

° — ^p 3133.9 206895 238795 20 12 1.53 0.135 27.9 0.432 C 3, ca

(14)

3134.82 207003 238893 8 6 1.23 0.136 11.2 0.036 C Is 3138.44 206878 238732 6 4 0.96 0.095 5.9 -0.246 C Is 3139.77 206786 238626 4 2 0.76 0.056 2.33 -0.65 C Is 3122.62 206878 238893 6 6 0.278 0.0407 2.51 -0.61 C Is 3129.44 206786 238732 4 4 0.493 0.072 2.98 -0.54 C Is 3134.32 206731 238626 2 2 0.77 0.113 2.33 -0.65 c Is 3113.71 206786 238893 4 6 0.0312 0.0068 0.279 - 1.57 c Is 3124.02 206731 238732 2 4 0.077 0.0226 0.465 - 1.345 c Is

67 T)0 1 T) 3292.4 208431 238795 12 12 0.85 0.138 18.0 0.220 c 3, ca

(23)

3287.59 208484 238893 6 6 0.60 0.097 6.3 -0.235 c Is 3295.13 208392 238732 4 4 0.113 0.0184 0.80 -1.132 c Is 3301.56 208346 238626 2 2 0.141 0.0230 0.50 -1.337 c Is 3305.15 208484 238732 6 4 0.379 0.0414 2.70 -0.61 c Is 3306.60 208392 238626 4 2 0.70 0.057 2.50 -0.64 c Is 3277.69 208392 238893 4 6 0.259 0.063 2.70 -0.60 c Is 3290.13 208346 238732 2 4 0.356 0.115 2.50 -0.64 c Is

68 2J)° 2p 3469.1 211636 240454 10 6 1.25 0.135 15.4 0.130 c 3, ca

(27)

3470.81 211713 240516 6 4 1.12 0.135 9.2 - 0.092 c Is 3470.42 211522 240329 4 2 1.24 0.112 5.1 - 0.348 c Is 3447.98 211522 240516 4 4 0.127 0.0227 1.03 - 1.042 c Is

69 4 S°- 4 P 3753.7 212162 238795 4 12 0.265 0.168 8.3 -0.173 c 3, 4, ca

(31)

3739.92 212162 238893 4 6 0.267 0.084 4.14 - 0.473 c 4n. Is 3762.63 212162 238732 4 4 0.269 0.057 2.83 -0.64 c 4n, Is 3777.60 212162 238626 4 2 0.252 0.0269 1.34 -0.97 c 4n. Is

70 2p° _ 2p 3809.3 214210 240454 6 6 0.65 0.142 10.7 - 0.069 c 3, ca

(34)

3803.14 214230 240516 4 4 0.55 0.119 5.9 -0.324 c Is 3821.68 214170 240329 2 2 0.432 0.095 2.38 -0.72 c Is 3830.45 214230 240329 4 2 0.215 0.0236 1.19 - 1.025 c Is 3794.48 214170 240516 2 4 0.110 0.0476 1.19 -1.021 c Is

91
Oil. Allowed Transitions — Continued

No. Transition

Array

Multiplet \(A) ^(cm l ) Edcm *) gi /M10H sec- 1 ) S(at.u.) log gf Accuracy

Source

71 2p23p' - <N 1 <N Q 3272.4 228737 259287 14 10 1.20 0.137 20.7 0.284 C 3, ca 2p2

(

1 D)4s' (39)

3273.52 228747 259286 8 6 1.14 0.137 11.8 0.039 c Is 3270.98 228723 259287 6 4 1.20 0.128 8.3 -0.114 c Is [3270.9] 228723 259287 6 6 0.057 0.0091 0.59 -1.261 c Is

72 2 D° — 2 D 3408.4 229956 259287 10 10 0.80 0.140 15.7 0.146 c 3, ca

(44)

3407.38 229947 259286 6 6 0.75 0.131 8.8 -0.106 c Is 3409.84 229968 259287 4 4 0.72 0.126 5.7 - 0.298 c Is 3407.38 229947 259287 6 4 0.080 0.0093 0.63 - 1.252 c Is 3409.84 229968 259286 4 6 0.054 0.0140 0.63 - 1.252 c Is

73 2p°_ 2J) 3733.9 232513 259287 6 10 0.416 0.145 10.7 - 0.060 c 3, ca

(62)

3735.94 232527 259286 4 6 0.416 0.130 6.4 - 0.282 c Is 3729.34 232480 259287 2 4 0.349 0.145 3.57 -0.54 c Is [3735.9] 232527 259287 4 4 0.069 0.0145 0.71 -1.237 c Is

74 2p2 3d- 4JT_ 4J)° 6897.5 231429 245923 28 20 0.333 0.170 108 0.68 c 3, ca 2p2

( 3P)4p (45)

6895.29 231530 246029 10 8 0.298 0.170 38.6 0.231 c Is 6906.54 231428 245903 8 6 0.272 0.146 26.5 0.067 c Is 6910.75 231350 245816 6 4 0.267 0.127 17.4 -0.117 c Is 6908.11 231296 245768 4 2 0.332 0.119 10.8 - 0.323 c Is 6846.97 231428 246029 8 8 0.0347 0.0244 4.40 -0.71 c Is 6869.74 231350 245903 6 6 0.059 0.0415 5.6 -0.60 c h

6885.07 231296 245816 4 4 0.067 0.0476 4.32 -0.72 c Is [6810.6] 231350 246029 6 8 0.00180 0.00167 0.224 -2.000 c Is [6844.1] 231296 245903 4 6 0.00325 0.00343 0.309 -1.86 c Is

75 2p 2p° 6657.3 233468 248485 6 6 0.105 0.070 9.2 -0.377 c 3, ca

(85)

6627.62 233430 248514 4 4 0.089 0.059 5.1 -0.63 c Is [6718.1] 233544 248425 2 2 0.068 0.0461 2.04 - 1.035 c Is 6678.19 233544 248514 2 4 0.0173 0.0232 1.02 - 1.334 c Is 6666.94 233430 248425 4 2 0.0349 0.0116 1.02 - 1.333 c Is

76 2p23d — 4p _ 4 QO 4093.7 231429 255850 28 36 2.60 0.84 317 1.372 c 3, ca 2p2

(3P)4/ (48)

4089.30 231530 255978 10 12 2.62 0.79 106 0.90 c Is 4097.26 231428 255828 8 10 2.37 0.75 81 0.78 c Is 4095.63 231350 255759 6 8 2.23 0.75 61 0.65 c Is 4087.16 231296 255756 4 6 2.24 0.84 45.3 0.53 c Is [4114.4] 231530 255828 10 10 0.212 0.054 7.3 - 0.269 c Is 4108.75 231428 255759 8 8 0.349 0.088 9.6 -0.151 c Is 4096.18 231350 255756 6 6 0.359 0.090 7.3 -0.267 c Is [4126.1] 231530 255759 10 8 0.0077 0.00158 0.214 -1.80 c Is [4109.3] 231428 255756 8 6 0.0128 0.00244 0.264 -1.71 c Is

77 O Cu 1 Q 4293.8 232511 255794 12 20 1.98 0.91 155 1.040 c 3, ca

(54)

4303.82 232463 255691 6 8 1.97 0.73 62 0.64 c Is 4294.82 232536 255813 4 6 1.39 0.57 32.5 0.362 c Is [4288.8] 232603 255913 2 4 0.83 0.457 12.9 - 0.039 c Is 4281.40 232463 255813 6 6 0.60 0.164 13.9 - 0.006 c Is 4282.82 232536 255913 4 4 1.06 0.293 16.5 - 0.068 c Is 4288.83 232603 255912 2 2 1.66 0.457 12.9 - 0.039 c Is [4263.2] 232463 255913 6 4 0.101 0.0184 1.55 -0.96 c Is 4276.71 232536 255912 4 2 0.334 0.0458 2.58 -0.74 c Is

92
Oil. Allowed Transitions — Continued

'Jo. Transition

Array

Multiplet X(A) 1 E £*(cm ‘) gi gk Aki( 1

0

H sec ') /« S(at.u.) log gf Accuracy

Source

78 4 D— 4 P 4278.0 232746 256115 20 28 2.12 0.81 229 1.211 C 3, ca

(67)

4275.52 232754 256136 8 10 2.12 0.73 82 0.76 C Is 4276.71 232748 256123 6 8 1.82 0.66 56 0.60 c Is 4282.96 232746 256088 4 6 1.58 0.65 36.8 0.417 c Is 4277.40 232712 256084 2 4 1.49 0.82 23.0 0.213 c Is 4277.90 232754 256123 8 8 0.302 0.083 9.3 -0.179 c Is 4283.13 232748 256088 6 6 0.51 0.141 11.9 - 0.074 c Is 4283.75 232746 256084 4 4 0.59 0.162 9.2 -0.187 c Is [4284.4] 232754 256088 8 6 0.0204 0.00420 0.474 -1.474 c Is [4284.0] 232748 256084 6 4 0.0421 0.0077 0.65 -1.334 c Is

79 2 JT _ 2QO 4341.7 232889 255915 14 18 2.31 0.84 168 1.070 c 3, ca

(77)

4342.00 232959 255984 8 10 2.31 0.82 93 0.81 c Is 4340.36 232796 255829 6 8 2.23 0.84 72 0.70 c Is [4371.3] 232959 255829 8 8 0.081 0.0232 2.67 -0.73 c Is

80 2p _ 2J)° 4488.9 233468 255739 6 10 1.81 0.91 81 0.74 c 3, ca

(86)

4491.25 233430 255690 4 6 1.81 0.82 48.6 0.52 c Is 4489.48 233544 255812 2 4 1.51 0.91 27.0 0.262 c Is [4466.6] 233430 255812 4 4 0.307 0.092 5.4 -0.435 c Is

81

O Q 1 (Jh 4606.6 234434 256136 10 14 1.82 0.81 123 0.91 c 3, ca

(93)

4609.42 234454 256143 6 8 1.82 0.77 70 0.67 c Is 4602.11 234402 256126 4 6 1.70 0.81 49.2 0.51 c Is 4613.11 234454 256126 6 6 0.121 0.0385 3.51 -0.64 c Is

82 2p*3d' - 2F — 2 G° 4060.8 251222 275841 14 18 2.20 0.70 131 0.99 c 3, ca 2p2

(

1 D)4/' (97)

83 2 G — 2 H° 4253.9 252608 276109 18 22 2.63 0.87 220 1.196 c 3, 4 ca

(101)

84 2p2 3d- 4p 4J)° [3011.7] 232511 [265705] 12 20 0.75 0.169 20.1 0.307 c 3, ca 2p2

( 3 P)5/ (56)

3013.37 232463 265639 6 8 0.74 0.135 8.0 -0.091 c Is [3014.0] 232536 [265705] 4 6 0.52 0.106 4.22 -0.371 c Is [3019.8] 232602 [265762] 2 4 0.311 0.085 1.68 -0.77 c Is [3007.4] 232463 [265705] 6 6 0.225 0.0305 1.81 -0.74 c Is [3008.8] 232536 [265762] 4 4 0.398 0.054 2.14 -0.67 c Is [3006.0] 232602 [265859] 2 2 0.63 0.085 1.68 -0.77 c Is [3002.2] 232463 [265762] 6 4 0.0376 0.00339 0.201 -1.69 c Is [3000.1] 232536 [265859] 4 2 0.126 0.0085 0.335 - 1.470 c Is

85 a l 'no [3008.4] 232746 [265977] 20 28 0.84 0.160 31.7 0.51 c 3, ca

(74)

3007.08 232754 265999 8 10 0.84 0.143 11.3 0.057 c Is 3007.74 232748 265985 6 8 0.72 0.130 7.8 -0.106 c Is 3009.81 232746 [265961] 4 6 0.63 0.128 5.1 - 0.289 c Is [3009.7] 232712 [265928] 2 4 0.59 0.159 3.16 - 0.496 c Is 3008.28 232754 265985 8 8 0.120 0.0163 1.29 -0.89 c Is [3010.0] 232748 [265961] 6 6 0.204 0.0278 1.65 -0.78 c Is [3012.8] 232746 [265928] 4 4 0.235 0.0320 1.27 -0.89 c Is [3010.5] 232754 [265961] 8 6 0.0081 8.3 X 10-4 0.066 -2.180 c Is [3013.0] 232748 [265928] 6 4 0.0167 0.00152 0.090 - 2.040 c Is

86 2p _ 2Q° 3032.5 232889 265856 14 18 0.85 0.151 21.1 0.325 c 3, ca

(83)

3032.08 232959 265930 8 10 0.85 0.147 11.7 0.069 c Is 3032.50 232796 265763 6 8 0.82 0.151 9.0 -0.043 c Is [3047.5] 232959 265763 8 8 0.0300 0.00417 0.335 -1.476 c Is

93
Forbidden Transitions

The adopted values are exclusively from Seaton and Osterbrock’s calculations [1]. The

important effects of configuration interaction are partially taken into account and a reliable esti- mate of the quadrupole integral is given (see also general introduction).

Reference

[1] Seaton, M. J., and Osterbrock, D. E., Astrophys. J. 125, 66—83 (1957).

O II. Forbidden Transitions

No. Transition

Array

Multiplet MA) £i(cm'‘) Fdcm-1

) gi gk

Type of

Transition

Aki( sec

-1

) S(at.u.) Accuracy

Source

1 2p

3 — 2

p

3 4 S° — 2 D°

(1 F)

3728.91 0.0 26810.7 4 6 m 7.4 X 10-6 8.5 X 10-8 C 1 3728.91 0.0 26810.7 4 6 e 4.1 x 10-5 1.1 X 10-4 D 1 3726.16 0.0 26830.5 4 4 m 1.43 x 10-4 1.10 X 10-6 C 1 3726.16 0.0 26830.5 4 4 e 2.7 X 10-5 4.5 X 10-5 D 1

2

4g° 2p°

[2470.4] 0.0 40466.9 4 4 m 0.060 1.33 X 10-4 C 1 [2470.4] 0.0 40466.9 4 4 e 1.5 x 10-7 3.3 x 10-8 D 1 [2470.3] 0.0 40468.4 4 2 m 0.0238 2.66 x 10-5 C 1 [2470.3] 0.0 40468.4 4 2 e 7.4 X 10- 7 8.1 x 10-8 D 1

3

2 D° — 2D°

[50.8 X 105

] 26810.7 26830.5 6 4 m 1.26 x 10- 7 2.40 B 1 [50.5 X 105

] 26810.7 26830.5 6 4 e 1.5 x 10-19 0.0012 D 1

4 2J)° _ 2p°

(2 F)

7319.4 26810.7 40466.9 6 4 m 0.0091 5.3 X 10-4 C 1 7319.4 26810.7 40466.9 6 4 e 0.106 5.30 C 1 7318.6 26810.7 40468.4 6 2 e 0.0610 1.52 c 1 7330.7 26830.5 40466.9 4 4 m 0.0160 9.3 X 10-4 c 1 7330.7 26830.5 40466.9 4 4 e 0.0450 2.29 c 1 7329.9 26830.5 40468.4 4 2 m 0.0103 3.01 x 10-4 c 1 7329.9 26830.5 40468.4 4 2 e 0.0900 2.27 c 1

5 2p° 2p°

[6.7 X 107

] 40466.9 40468.4 4 2 m 6.04 x 10- 11 1.33 c + 1 [6.7 x 107

] 40466.9 40468.4 4 2 e 4.9 x 10-24 5.0 X 10-4 D 1

94
Oiu

Ground State Is2 2s2 2p

2 :{ P0

Ionization Potential 54.886 eV = 442807 cm'1

Allowed Transitions

List of tabulated lines:

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

302.34 14 2683.65 36 3284.57 27

303.411 11 2686.14 24 3299.36 17

303.460 11 2687.53 36 3305.77 27

303.515 11 2695.49 36 3312.30 17

303.621 11 2983.78 20 3326.16 40

303.693 11 2992.11 28 3330.40 40

303.799 11 2996.51 28 3332.49 40

305.596 10 2997.71 28 3333.00 23

305.656 10 3004.35 28 3333.40 23

305.703 10 3008.79 28 3336.78 23

305.769 10 3017.63 28 3336.78 40

305.836 10 3023.45 18 3340.74 17

305.879 10 3024.36 28 3344.26 23

320.979 13 3024.57 18 3344.26 40

328.448 12 3035.43 18 3348.05 40

345.309 15 3043.02 18 3350.68 23

373.805 7 3047.13 18 3350.99 23

374.005 7 3059.30 18 3355.92 40

374.075 7 3065.01 38 3362.38 23

374.165 7 3068.06 38 3376.4 39

374.331 7 3068.48 38 3376.82 39

374.436 7 3068.68 38 3377.3 39

395.558 8 3074.15 38 3382.69 39

434.975 9 3074.68 38 3383.5 39

507.391 3 3075.19 38 3383.85 39

507.683 3 3075.95 38 3384.95 39

508.182 3 3083.65 38 3394.26 39

525.795 5 3084.63 38 3395.5 39

597.818 6 3088.04 38 3405.74 31

599.598 4 3095.81 38 3408.13 31

702.332 2 3115.73 29 3415.29 31

702.822 2 3121.71 29 3428.67 31

702.899 2 3132.86 29 3430.60 31

703.850 2 3198.2 42 3444.10 31

832.927 1 3200.95 42 3446.73 37

833.742 1 3202.2 42 3447.22 37

835.096 1 3207.12 42 3448.05 37

835.292 1 3210.2 42 3450.94 37

2454.99 21 3215.97 42 3451.33 37

2558.06 46 3221.2 42 3454.90 37

2597.69 45 3260.98 27 3455.12 37

2605.41 45 3265.46 27 3459.52 37

2609.6 45 3267.31 27 3459.98 37

2665.69 24 3279.97 47 3466.15 37

2674.57 24 3281.94 27 3466.90 37

95

766-655 0-66—8
List of tabulated lines — Continued

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

3475.2 37 3712.48 22 3816.75 34

3520.7 26 3714.03 30 3961.59 33

3530.7 26 3715.08 30 4072.3 25

3532.8 26 3720.86 22 4073.90 25

3534.3 26 3721.95 22 4081.10 25

3555.3 26 3725.30 30 4088.5 25

3556.92 26 3728.49 41 4103.8 25

3638.70 44 3728.82 41 4118.6 25

3645.20 44 3729.70 41 4440.1 43

3646.84 44 3732.13 30 4447.82 43

3649.20 44 3734.80 22 4461.56 43

3650.70 44 3742.0 41 5268.06 35

3653.00 44 3747.6 41 5500.11 32

3695.37 22 3754.67 16 5592.37 19

3698.70 22 3757.21 16

3702.75 30 3759.87 16

3703.37 22 3761.2 41

3704.73 22 3774.00 16

3707.24 30 3791.26 16

3709.52 22 3810.96 16

Values for the strong 2s2 2p2 — 2s2p3 transitions, which are very sensitive to configuration

interaction, are taken from the calculations of Bolotin et al. [1]. These authors have used analytical one-electron wave functions and include configuration interaction in a crude manner. Thus large uncertainties must be expected. This applies also for the 2p2 — 2p3s and to a lesser

extent to the 2p2 — 2p3d transitions, for which only Kelly’s self-consistent field calculations [2] are available. In these, configuration interaction has been entirely neglected. For many other

transitions the simplified self-consistent field calculations by Kelly [3], in which exchange effects are approximately taken into account, are applied. The results agree within a few percent with

the values of the Coulomb approximation and the averaged values are adopted. The accuracy

rating of “C” is supported by the good agreement with relative /-value measurements of Berg

et al. [4] done with a magnetically driven shock tube.

References

[1] Bolotin, A. B., Levinson, I. B., and Levin, L. I., Soviet Phys. — JETP 2, 391—395 (1956).

[2] Kelly, P. S„ Astrophys. J. 140, 1247-1268 (1964).

[3] Kelly, P. S., J. Quant. Spectrosc. Radiat. Transfer 4, 117-148 (1964).

[4] Berg, H. F., Eckerle, K. L., Burris, R. W., and Wiese, W. L., Astrophys. J. 139, 751-757 (1964).

OlII. Allowed Transitions

No. Transition

Array

Multiplet mA) Ei( cm J ) Ek( cm ') gi ^JtidO8 sec

-1

)

S(at.u.) log gf Accuracy

Source

1 2s2 2p2 — 3p _ 3

J)° 834.50 208.2 120041 9 15 8.4 0.15 3.6 0.12 E 1 2s2p3 (1 uv) 835.292 306.8 120025 5 7 8.4 0.12 1.7 -0.21 E Is 833.742 113.4 120053 3 5 6.3 0.11 0.90 -0.48 E Is 832.927 0.0 120059 1 3 4.7 0.15 0.40 -0.84 E Is 835.096 306.8 120053 5 5 2.1 0.022 0.30 -0.96 E Is 833.742 113.4 120059 3 3 3.5 0.036 0.30 -0.96 E Is 835.096 306.8 120059 5 3 0.23 0.0015 0.020 -2.14 E Is

96
O III. Allowed Transitions — Continued

No. Transition

Array

Multiplet x(A) |1 Ek{cm ') gi gk Aki( 10H sec ') fk S(at.u.) log &f Accuracy Source

2 up _ 3p° 703.36 208.2 142384 9 9 25 0.18 3.8 0.22 E 1 (2 uv)

703.850 306.8 142382 5 5 19 0.14 1.6 -0.16 E Is 702.899 113.4 142383 3 3 6.2 0.046 0.32 -0.86 E Is 703.850 306.8 142383 5 3 10 0.046 0.53 -0.64 E Is 702.822 113.4 142397 3 1 25 0.061 0.42 -0.74 E Is 702.899 113.4 142382 3 5 6.2 0.076 0.53 -0.64 E Is 702.332 0.0 142383 1 3 8.2 0.18 0.42 -0.74 E Is

3 3p _ 3g° 507.93 208.2 197087 9 3 150 0.19 2.9 0.24 E 1 (3 uv)

508.182 306.8 197087 5 3 82 0.19 1.6 -0.02 E Is 507.683 113.4 197087 3 3 50 0.19 0.97 -0.24 E Is 507.391 0.0 197087 1 3 17 0.19 0.32 -0.72 E Is

4 *D — J D° 599.598 20271 187049 5 5 68 0.37 3.6 0.26 E 1 (7 uv)

5 6 i o 525.795 20271 210459 5 3 100 0.25 2.2 0.10 E 1 (8 uv)

6

i S _ip° 597.818 43184 210459 1 3 21 0.35 0.69 -0.46 E 1 (13 uv)

7 2P

2 - 3p _ 3p° 374.12 208.2 267505 9 9 38 0.081 0.90 -0.14 E 2

2p(2 P°)3s (4 uv)

374.075 306.8 267633 5 5 29 0.061 0.37 -0.52 E Is 374.165 113.4 267376 3 3 9.6 0.020 0.075 -1.22 E Is 374.436 306.8 267376 5 3 16 0.020 0.12 -0.99 E Is 374.331 113.4 267257 3 1 38 0.027 0.10 -1.09 E Is 373.805 113.4 267633 3 5 9.6 0.034 0.12 -0.99 E Is 374.005 0.0 267376 1 3 13 0.081 0.10 -1.09 E Is

8

J D — 1 P° 395.558 20271 273080 5 3 68 0.096 0.62 -0.32 E 2

(9 uv)

9

i S -ip° 434.975 43184 273080 1 3 13 0.11 0.16 -0.96 E 2

(14 uv)

10 2

p

2 - 3p_3J)° 305.72 208.2 327302 9 15 180 0.43 3.9 0.58 D- 2

2p(2 P°)3d (5 uv)

305.769 306.8 327351 5 7 180 0.36 1.8 0.25 D- Is 305.656 113.4 327277 3 5 140 0.32 0.97 -0.02 D- Is 305.596 0.0 327228 1 3 100 0.43 0.43 -0.37 D- Is 305.836 306.8 327277 5 5 46 0.064 0.32 -0.49 D- Is 305.703 113.4 327228 3 3 76 0.11 0.32 -0.49 D- Is 305.879 306.8 327228 5 3 5.1 0.0043 0.022 -1.67 D- Is

11 3p _ 3p° 303.66 208.2 329525 9 9 100 0.14 1.3 0.10 D- 2

(6 uv)

303.799 306.8 329468 5 5 76 0.11 0.53 -0.28 D- Is 303.515 113.4 329582 3 3 26 0.035 0.11 -0.97 D- Is 303.693 306.8 329582 5 3 42 0.035 0.18 -0.75 D- Is 303.460 113.4 329643 3 1 100 0.047 0.14 -0.85 D- Is 303.621 113.4 329468 3 5 25 0.059 0.18 -0.75 D- Is 303.411 0.0 329582 1 3 34 0.14 0.14 -0.85 D- Is

12 'D — ‘D

0 328.448 20271 324734 5 5 61 0.099 0.53 -0.31 D- 2

(10 uv)

13 1D-1F° 320.979 20271 331820 5 7 190 0.41 2.2 0.31 D- 2

(11 uv)

14 6 1 •Vo [302.34] 20271 332777 5 3 6.4 0.0052 0.026 -1.58 D- 2

97
O III. Allowed Transitions — Continued

No. Transition

Array

Multiplet MA) Ei( cm ') Ek(cm ') g> gk ^*,-(108 sec

-1

) fk S(at.u.) log gf Accuracy

Source

15 i S -ip° 345.309 43184 332777 1 3 98 0.53 0.60 -0.28 D- 2

(15 uv)

16 2p3s — 3p° 3£) 3762.3 267505 294077 9 15 1.07 0.377 42.0 0.53 C 3, ca

2p(2P°)3p (2) 3759.87 267633 294222 5 7 1.07 0.317 19.6 0.200 c Is 3754.67 267376 294002 3 5 0.80 0.283 10.5 -0.071 c Is 3757.21 267257 293865 1 3 0.59 0.378 4.67 -0.423 c Is 3791.26 267633 294002 5 5 0.260 0.056 3.50 -0.55 c Is 3774.00 267376 293865 3 3 0.440 0.094 3.50 -0.55 c Is 3810.96 267633 293865 5 3 0.0284 0.00371 0.233 -1.73 c Is

17 3p° 3g 3326.6 267505 297558 9 3 1.56 0.086 8.5 -0.110 c 3, ca

(3) 3340.74 267633 297558 5 3 0.85 0.085 4.70 -0.369 c Is 3312.30 267376 297558 3 3 0.52 0.086 2.82 -0.59 c Is 3299.36 267257 297558 1 3 0.177 0.087 0.94 -1.063 c Is

18 3p° _ 3p 3041.5 267505 300374 9 9 2.04 0.283 25.5 0.406 c 3, ca

(4) 3047.13 267633 300441 5 5 1.52 0.211 10.6 0.024 c Is 3035.43 267376 300310 3 3 0.51 0.071 2.12 -0.67 c Is 3059.30 267633 300310 5 3 0.84 0.070 3.54 -0.454 c Is 3043.02 267376 300228 3 1 2.03 0.094 2.83 -0.55 c Is 3023.45 267376 300441 3 5 0.52 0.119 3.54 -0.449 c Is 3024.57 267257 300310 1 3 0.69 0.284 2.83 -0.55 c Is

19 0 1 *0 5592.37 273080 290957 3 3 0.328 0.154 8.5 -0.336 c 3, ca

(5)

20 *60 1 6 2983.78 273080 306585 3 5 2.24 0.499 14.7 0.175 c 3, ca

(6)

21 1uo o

Cu 2454.99 273080 313801 3 1 4.00 0.120 2.92 -0.442 c 3, ca

(19 uv)

22 2s2p23s — 5 P — 5 D° 3706.1 338741 365716 15 25 1.09 0.375 69 0.75 c ca

2s2p2

( 4 P)3p (21)

3703.37 338852 365846 7 9 1.10 0.290 24.7 0.308 c Is 3698.70 338690 365719 5 7 0.73 0.210 12.8 0.021 c Is 3695.37 338566 365619 3 5 0.384 0.131 4.78 -0.406 c Is 3720.86 338852 365719 7 7 0.361 0.075 6.4 -0.280 c Is 3712.48 338690 365619 5 5 0.63 0.131 8.0 -0.184 c Is 3704.73 338566 365551 3 3 0.81 0.168 6.1 -0.298 c Is 3734.80 338852 365619 7 5 0.071 0.0106 0.91 -1.130 c Is 3721.95 338690 365551 5 3 0.270 0.0336 2.06 -0.77 c Is 3709.52 338566 365516 3 1 1.09 0.075 2.75 -0.65 c Is

23 5p _ sp° 3345.9 338741 368620 15 15 1.50 0.252 41.6 0.58 c ca

(22)

3350.99 338852 368685 7 7 1.00 0.168 13.0 0.070 c Is 3344.26 338690 368584 5 5 0.125 0.0210 1.16 -0.98 c Is 3336.78 338566 368526 3 3 0.377 0.063 2.08 -0.72 c Is 3362.38 338852 368584 7 5 0.69 0.084 6.5 - 0.233 c Is 3350.68 338690 368526 5 3 0.112 0.113 6.2 -0.248 c Is 3333.00 338690 368685 5 7 0.51 0.118 6.5 -0.229 c Is 3333.40 338566 368584 3 5 0.68 0.189 6.2 -0.246 c Is

24 5P- 5 S° 2678.2 338741 376068 15 5 2.99 0.107 14.2 0.206 c ca

(22 uv)

2686.14 338852 376068 7 5 1.38 0.107 6.6 -0.126 c Is 2674.57 338690 376068 5 5 1.00 0.107 4.71 -0.272 c Is 2665.69 338566 376068 3 5 0.60 0.107 2.82 -0.494 c Is

98
O III. Allowed Transitions — Continued

No. Transition Multiplet x(A) £i(cm ') Ek(cm ') g> gk /M108 fk S(at.u.) l‘*g gf Accu- Source

Array sec

-1

) racy

25 3p_3J)° 4081.0 350212 374709 9 15 0.94 0.391 47.3 0.55 C ca

(23)

4081.10 350302 374799 5 7 0.94 0.329 22.1 0.217 c Is 4073.90 350123 374663 3 5 0.71 0.294 11.8 -0.055 c Is [4072.3] 350026 374575 1 3 0.52 0.392 5.2 -0.407 c Is [4103.8] 350302 374663 5 5 0.232 0.058 3.95 -0.53 c Is [4088.5] 350123 374575 3 3 0.389 0.098 3.94 -0.53 c Is [4118.6] 350302 374575 5 3 0.0254 0.00388 0.263 -1.71 c Is

26 3p _ 3p° 3544.6 350212 378416 9 9 1.46 0.274 28.8 0.392 c ca

(24)

3556.92 350302 378409 5 5 1.08 0.205 12.0 0.010 c Is [3532.8] 350123 378421 3 3 0.367 0.069 2.39 -0.69 c Is [3555.3] 350302 378421 5 3 0.60 0.068 4.00 -0.467 c Is [3530.7] 350123 378438 3 1 1.47 0.092 3.19 -0.56 c Is [3534.3] 350123 378409 3 5 0.366 0.114 3.99 -0.465 c Is [3520.7] 350026 378421 1 3 0.493 0.275 3.19 -0.56 c Is

27 2p3p — 3J) _ 3p° 3265.9 294007 324688 15 21 2.08 0.465 75 0.84 c 3, ca

2p(2P°)3d (8) 3265.46 294222 324836 7 9 2.07 0.425 32.0 0.474 c Is 3260.98 294002 324658 5 7 1.84 0.412 22.1 0.314 c Is 3267.31 293865 324462 3 5 1.73 0.462 14.9 0.142 c Is 3284.57 294222 324658 7 7 0.226 0.0366 2.77 -0.59 c Is 3281.94 294002 324462 5 5 0.317 0.051 2.77 -0.59 c Is 3305.77 294222 324462 7 5 0.0093 0.00109 0.083 -2.118 c Is

28 3 D - 3 D° 3002.6 294007 327302 15 15 0.68 0.092 13.6 0.139 c 3, ca

(10)

3017.63 294222 327351 7 7 0.59 0.081 5.6 -0.249 c Is 3004.35 294002 327277 5 5 0.472 0.064 3.16 - 0.496 c Is 2996.51 293865 327228 3 3 0.51 0.069 2.04 -0.68 c Is 3024.36 294222 327277 7 5 0.104 0.0102 0.71 -1.147 c Is 3008.79 294002 327228 5 3 0.134 0.0109 0.54 - 1.264 c Is 2997.71 294002 327351 5 7 0.076 0.0144 0.71 -1.143 c Is 2992.11 293865 327277 3 5 0.082 0.0183 0.54 -1.261 c Is

29 3§ 3p° 3127.3 297558 329525 3 9 1.37 0.60 18.6 0.257 c 3, ca

(12)

3132.86 297558 329468 3 5 1.36 0.333 10.3 -0.001 c Is 3121.71 297558 329582 3 3 1.38 0.201 6.2 -0.220 c Is 3115.73 297558 329643 3 1 1.39 0.067 2.07 -0.70 c Is

30 3p _ 3J)° 3712.5 300374 327302 9 15 1.10 0.379 41.7 0.53 c 3, ca

(14)

3715.08 300441 327351 5 7 1.10 0.319 19.5 0.203 c Is 3707.24 300310 327277 3 5 0.83 0.284 10.4 - 0.070 c Is 3702.75 300228 327228 1 3 0.62 0.380 4.63 - 0.420 c Is 3725.30 300441 327277 5 5 0.273 0.057 3.48 -0.55 c Is 3714.03 300310 327228 3 3 0.459 0.095 3.48 -0.55 c Is 3732.13 300441 327228 5 3 0.0301 0.00378 0.232 -1.72 c Is

31 3p _ 3p° 3429.4 300374 329525 9 9 0.79 0.140 14.2 0.100 c 3, ca

(15)

3444.10 300441 329468 5 5 0.59 0.104 5.9 -0.284 c Is 3415.29 300310 329582 3 3 0.200 0.0350 1.18 -0.98 c Is 3430.60 300441 329582 5 3 0.330 0.0349 1.97 -0.76 c Is 3408.13 300310 329643 3 1 0.81 0.0469 1.58 -0.85 c Is 3428.67 300310 329468 3 5 0.198 0.058 1.97 -0.76 c Is 3405.74 300228 329582 1 3 0.270 0.141 1.58 -0.85 c Is

32 1 D- 1 D° 5500.11 306585 324734 5 5 0.112 0.051 4.58 -0.60 c 3, ca

(16)

33 ! D — *F° 3961.59 306585 331820 5 7 1.28 0.422 27.5 0.324 c 3, ca

( 17)

99
O III. Allowed Transitions — Continued

No. Transition

Array

Multiplet mA) Ei(cm ') Ek(cm ') gi gk ^,(108 sec

-1

)

fik S(at.u.) log gf Accuracy

Source

34 iD — 1 P° 3816.75 306585 332777 5 3 0.0402 0.0053 0.331 -1.58 C 3, ca

(IB)

35 7c

) 1 *6o 5268.06 313801 332777 1 3 0.311 0.389 6.7 -0.411 c 3, ca

(19)

36 2s2p2 3p — 3g° 3p 2691.5 363267 400410 3 9 2.10 0.68 18.2 0.312 c ca

2s2p2

( 4P)3d (23 uv)

2695.49 363267 400355 3 5 2.09 0.379 10.1 0.056 c Is 2687.53 363267 400465 3 3 2.11 0.229 6.1 -0.163 c Is 2683.65 363267 400518 3 1 2.12 0.076 2.02 -0.64 c Is

37 5 D° — 5 F 3453.0 365716 394668 25 35 1.68 0.420 119 1.021 c ca

(25)

3455.12 365846 394780 9 11 1.67 0.365 37.4 0.52 c Is 3450.94 365719 394688 7 9 1.40 0.321 25.5 0.351 c Is 3448.05 365619 394613 5 7 1.15 0.287 16.3 0.157 c Is 3446.73 365551 394555 3 5 0.94 0.279 9.5 -0.077 c Is 3447.22 365516 394516 1 3 0.78 0.419 4.76 -0.377 c Is 3466.15 365846 394688 9 9 0.276 0.0497 5.1 -0.350 c Is 3459.98 365719 394613 7 7 0.496 0.089 7.1 -0.205 c Is 3454.90 365619 394555 5 5 0.67 0.120 6.8 -0.223 c Is 3451.33 365551 394516 3 3 0.78 0.140 4.76 -0.378 c Is [3475.2] 365846 394613 9 7 0.0234 0.00330 0.340 -1.53 c Is 3466.90 365719 394555 7 5 0.066 0.0085 0.68 -1.225 c Is 3459.52 365619 394516 5 3 0.111 0.0119 0.68 -1.224 c Is

38 5 D° — 5 D 3081.0 365716 398164 25 25 0.62 0.089 22.5 0.345 c ca

(26)

3088.04 365846 398219 9 9 0.52 0.074 6.8 -0.178 c Is 3083.65 365719 398137 7 7 0.311 0.0443 3.15 -0.51 c Is 3075.19 365619 398127 5 5 0.157 0.0222 1.12 -0.95 c Is 3068.48 365551 398131 3 3 0.234 0.0330 0.225 - 1.004 c Is 3095.81 365846 398137 9 7 0.132 0.0147 1.35 -0.88 c k

3084.63 365719 398127 7 5 0.248 0.0253 1.80 -0.75 c Is 3074.68 365619 398131 5 3 0.365 0.0310 1.57 -0.81 c Is 3068.06 365551 398135 3 1 0.63 0.0296 0.90 -1.052 c Is 3075.95 365719 398219 7 9 0.104 0.0190 1.35 -0.88 c Is 3074.15 365619 398137 5 7 0.180 0.0355 1.80 -0.75 c Is 3068.68 365551 398127 3 5 0.220 0.052 1.57 -0.81 c Is 3065.01 365516 398131 1 3 0.210 0.089 0.90 -1.051 c Is

39 cn 0 1 cn O 3383.8 368620 398164 15 25 1.45 0.416 69 0.80 c ca

(27)

3384.95 368685 398219 7 9 1.45 0.321 25.0 0.351 c Is 3382.69 368584 398137 5 7 0.97 0.233 13.0 0.066 c Is [3377.3] 368526 398127 3 5 0.51 0.146 4.85 -0.360 c Is 3394.26 368685 398137 7 7 0.480 0.083 6.5 -0.237 c Is 3383.85 368584 398127 5 5 0.85 0.145 8.1 -0.139 c Is 3376.82 368526 398131 3 3 1.09 0.187 6.2 -0.251 c Is [3395.5] 368685 398127 7 5 0.096 0.0118 0.93 -1.082 c Is [3383.5] 368584 398131 5 3 0.363 0.0374 2.08 -0.73 c Is [3376.4] 368526 398135 3 1 1.46 0.083 2.77 -0.60 c Is

40 5P° — 5P 3343.6 368620 398519 15 15 0.84 0.140 23.1 0.322 c ca

(28)

3355.92 368685 398474 7 7 0.55 0.093 7.2 -0.187 c Is 3336.78 368584 398544 5 5 0.070 0.0117 0.64 -1.233 c Is 3326.16 368526 398583 3 3 0.212 0.0352 1.16 -0.98 c Is 3348.05 368685 398544 7 5 0.388 0.0466 3.60 -0.487 c Is 3332.49 368584 398583 5 3 0.63 0.063 3.47 -0.50 c Is 3344.26 368584 398474 5 7 0.278 0.065 3.59 -0.487 c Is 3330.40 368526 398544 3 5 0.379 0.105 3.45 -0.50 c Is

100
O III. Allowed Transitions — Continued

No. Transition Multiplet X(A) £,(cm ') Wcnr1 ) gi gk Aki( 10* fk S(at.u.) log gf Accu- Source

Array sec

-1

) racy

41 *D° 2P 3730.1 374709 401510 15 21 1.58 0.460 85 0.84 C ca

(30)

3728.82 374799 401609 7 9 1.58 0.424 36.4 0.472 C Is 3728.49 374663 401475 5 7 1.41 0.411 25.2 0.312 c Is 3729.70 374575 401379 3 5 1.33 0.461 17.0 0.141 c Is [3747.6] 374799 401475 7 7 0.174 0.0366 3.16 -0.59 c Is [3742.0] 374663 401379 5 5 0.244 0.051 3.16 - 0.59 c Is [3761.2] 374799 401379 7 5 0.0072 0.00108 0.094 -2.120 c Is

42 :, D° — 3 D 3210.2 374709 405851 15 15 0.66 0.102 16.2 0.186 c ca

(31)

3215.97 374799 405883 7 7 0.58 0.091 6.7 -0.198 c Is 3207.12 374663 405834 5 5 0.460 0.071 3.74 -0.451 c Is 3200.95 374575 405805 3 3 0.499 0.077 2.42 -0.64 c Is [3221.2] 374799 405834 7 5 0.102 0.0113 0.84 -1.102 c Is [3210.2] 374663 405805 5 3 0.165 0.0153 0.81 -1.117 c Is [3202.2] 374663 405883 5 7 0.074 0.0159 0.84 -1.099 c Is [3198.2] 374575 405834 3 5 0.100 0.0256 0.81 -1.115 c Is

43 5 S°_5p 4452.9 376068 398519 5 15 0.490 0.437 32.0 0.340 c ca

(33)

4461.56 376068 398474 5 7 0.486 0.203 14.9 0.007 c Is 4447.82 376068 398544 5 5 0.492 0.146 10.7 -0.137 c Is 4440.1 376068 398583 5 3 0.495 0.088 6.4 -0.358 c Is

44 3p° _ 3J) 3643.9 378416 405851 9 15 1.39 0.461 49.8 0.62 c ca

(35)

3638.70 378409 405883 5 7 1.40 0.388 23.2 0.288 c Is 3646.84 378421 405834 3 5 1.04 0.345 12.4 0.015 c Is 3653.00 378438 405805 1 3 0.77 0.460 5.5 -0.337 c Is 3645.20 378409 405834 5 5 0.347 0.069 4.15 -0.462 c Is 3650.70 378421 405805 3 3 0.58 0.115 4.15 - 0.462 c Is 3649.20 378409 405805 5 3 0.0384 0.00460 0.276 -1.64 c Is

45 2p3d~ 3p° 3g 2601.6 329525 367952 9 3 1.73 0.059 4.52 -0.278 c 3, ca

2p( 2 P°)4p (20 uv)

2597.69 329468 367952 5 3 0.97 0.059 2.51 -0.53 c Is 2605.41 329582 367952 3 3 0.58 0.059 1.51 -0.75 c Is [2609.6] 329643 367952 1 3 0.190 0.058 0.50 -1.235 c Is

46 1F0 -!D

(21 uv)

2558.06 331820 370901 7 5 1.16 0.081 4.79 -0.245 c 3, ca

47 2p4p — 0 1Oh cn 3279.97 373046 403526 1 3 0.241 0.117 1.26 -0.93 c 3, ca

2p( 2 P°)5d (29)

101
Forbidden Transitions

The adopted values represent, as in the case of C I, the work of Garstang [1], Naqvi [2], and

Yamanouchi and Horie [3], who have independently done essentially the same calculations and

arrived at very similar results. For the selection of values, the same considerations as for C I have been applied. (Yamanouchi and Horie’s result for the 3 Pi — X D2 transition apparently contains a numerical error and is not used).

References

[1] Garstang, R. H., Monthly Notices Roy. Astron. Soc. Ill, 115-124 (1951). [2] Naqvi, A. M., Thesis Harvard (1951). [3] Yamanouchi, T., and Horie, H., J. Phys. Soc. Japan 7, 52—56 (1952).

O III. Forbidden Transitions

X(A)

Type of AccuNo. Transition Multiplet Fifcm ! ) Ek( cm *) gi gk Transi- Aki(sec x) S(at.u.) racy Source

Array tion

1 2p2 — 2p2 3p 3p

[51.69 x 104

] 113.4 306.8 3 5 m 9.75 X lO"5 2.50 B 1,2,3

[51.69 X 104

] 113.4 306.8 3 5 e 7.8 X 10- 12 0.086 C 1 [32.59 X 104

] 0 306.8 1 5 e 3.50 X 10- 11 0.383 C 1 [88.16 X 104

] 0 113.4 1 3 m 2.62 X 10-5 2.00 B 1,2,3

2

3 p — 1 D

(1 F)

5006.84 306.8 20271 5 5 m 0.0210 4.88 X lO"4 C 1,2,3

5006.84 306.8 20271 5 5 e 4.1 X lO"5 3.8 X 10-4 D 1 4958.91 113.4 20271 3 5 m 0.0071 1.61 X 10-4 C 1,2

4958.91 113.4 20271 3 5 e 6.2 X 10-6 5.5 X lO"5 D 1 4931.8 0 20271 1 5 e 1.9 X 10-6 1.7 x 10-5 D 1

3

w x 1 on [2331.6] 306.8 43183.5 5 1 e 7.1 X lO"4 2.9 x lO"5 D 1 [2321.1] 113.4 43183.5 3 1 m 0.230 1.07 x 10-4 C 1,3

4 'D-'S

(2 F)

4363.21 20271 43183.5 5 1 e 1.60 1.51 C 1

102
O iv

Ground State Is 2 2

s

2 2p2 P?/2

Ionization Potential 77.394 eV = 624396.5 cm'1

Allowed Transitions

List of tabulated lines:

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

238.361 6 3216.31 14 3774.38 13

238.573 6 3348.08 9 3930.63 17 238.58 6 3349.11 9 3942.14 17

279.633 5 3354.31 15 3945.29 17

279.937 5 3362.63 15 3956.82 17

553.328 3 3375.50 15 3974.66 17 554.074 3 3378.09 9 3977.10 17 554.514 3 3381.28 8 3995.17 17

555.262 3 3381.33 8 4568 21

608.395 2 3385.55 8 4652.5 20

609.829 2 3390.37 8 4685.4 20

624.617 4 3396.83 8 4772.57 16

625.130 4 3403.58 12 4779.09 16

625.852 4 3405.97 8 4783.43 16

787.710 1 3409.75 8 4794.22 16

790.103 1 3411.76 12 4798.25 16

790.203 1 3413.71 12 4800.77 16

2494.8 10 3425.57 8 4813.07 16

2511.4 10 3489.84 11 4823.93 16

3063.46 7 3492.2 11 5290.1 18

3071.66 7 3492.24 11 5305.3 18

3177.80 14 3560.42 19 5362.4 18

3180.72 14 3563.36 19 5378.3 18

3180.98 14 3593.1 19

3185.72 14 3725.81 13

3188.17 14 3729.03 13

3188.65 14 3736.78 13

3194.75 14 3744.73 13

3199.53 14 3755.82 13

3209.64 14 3758.45 13

Values for the 2s2 2p — 2s2p2 transitions are taken from the calculations of Bolotin and Yutsis [1] who employ analytical one-electron wave functions and include configuration interaction with a

relatively crude approximation. For these as well as the 2s2p2 — 2p3 and 2p — 3s transitions large

uncertainties must be expected because they are very sensitive to the effects of configuration

interaction.

For several other transitions Kelly’s self-consistent field calculations [2, 3] (which include

exchange effects) are available. In the case of the highly excited lines, they agree within a few

percent with the results of the Coulomb approximation and the averaged values are adopted.

References

[1] Bolotin, A. B., and Yutsis, A. P., Zhur. Eksptl. i Teoret. Fiz. 24, 537-543 (1953). (Translated in "Optical Transition

Probabilities,” Office of Technical Services, U.S. Department of Commerce, Washington, D.C.)

[2] Kelly, P. S., Astrophys. J. 140, 1247-1268 (1964).

[3] Kelly, P. S., J. Quant. Spectrosc. Radiat. Transfer 4, 117-148 (1964).

103
O IV. Allowed Transitions

No Transition

Array

Multiplet mA) is, (cm *) £A-(cm *) g> gk ^Ai(108 sec

-1

)

fik S(at.u.) log gf Accuracy

Source

1 2s2 2p - 2p° _ 2J) 789.36 257.7 126942 6 10 9.5 0.15 2.3 -0.05 E 1 2s( 4 S)2p2 (1 uv)

790.203 386.5 126936 4 6 9.6 0.13 1.4 -0.27 E Is 787.710 0.0 126950 2 4 8.0 0.15 0.77 -0.53 E Is 790.103 386.5 126950 4 4 1.5 0.014 0.15 -1.24 E Is

2

2p° _ 2§ 609.35 257.7 164367 6 2 54 0.10 1.2 -0.22 E 1 (2 uv)

609.829 386.5 164367 4 2 36 0.10 0.80 -0.40 E Is 608.395 0.0 164367 2 2 18 0.10 0.40 -0.70 E Is

3

2p° 2p 554.37 257.7 180644 6 6 83 0.38 4.2 0.36 E 1 (3 uv)

554.514 386.5 180725 4 4 68 0.31 2.3 0.10 E Is 554.074 0.0 180481 2 2 55 0.25 0.93 -0.29 E Is 555.262 386.5 180481 4 2 28 0.064 0.47 -0.59 E Is 553.328 0.0 180725 2 4 14 0.13 0.47 -0.59 E Is

4 2s2p2 -2p3 4 P- 4 S° 625.41 [71379] [231275] 12 4 72 0.14 3.5 0.23 E 2

(6 uv)

625.852 [71493] [231275] 6 4 37 0.15 1.8 -0.06 E Is 625.130 [71308] [231275] 4 4 25 0.15 1.2 -0.23 E Is 624.617 [71177] [231275] 2 4 12 0.14 0.58 -0.55 E Is

5 2p —

(

1 S)3s 2p° _ 2$ 279.83 257.7 357615 6 2 130 0.050 0.28 -0.52 E 2

(4 uv)

279.937 386.5 357615 4 2 85 0.050 0.19 -0.70 E Is 279.633 0.0 357615 2 2 43 0.050 0.092 -1.00 E Is

6 2p-(4 S)3<i 2p° 2£) 238.50 257.7 419544 6 10 350 0.50 2.4 0.48 D- 2

(5 uv)

238.573 386.5 419550 4 6 350 0.45 1.4 0.26 D- Is 238.361 0.0 419534 2 4 300 0.50 0.79 0.00 D- Is [238.58] 386.5 419534 4 4 59 0.050 0.16 -0.70 D- Is

7 3s — (*S)3p 2§ 2p° 3066.2 357615 390219 2 6 1.48 0.62 12.6 0.096 C 3, ca

(1) 3063.46 357615 390248 2 4 1.48 0.416 8.4 -0.079 C Is 3071.66 357615 390161 2 2 1.47 0.208 4.20 -0.382 C Is

8 2s2p3s — 4P° — 4 D 3374.3 [438698] [468325] 12 20 1.07 0.303 40.4 0.56 C ca

2s( 3P°)2p3p (3) 3385.55 438589] [468499] 6 8 1.06 0.242 16.2 0.162 C Is 3381.28 438724] [468290] 4 6 0.74 0.191 8.5 -0.117 C Is 3381.33 438971] [468154] 2 4 0.442 0.151 3.37 -0.52 C Is 3409.75 438589] [468290] 6 6 0.310 0.054 3.64 -0.489 C Is 3396.83 438724] [468154] 4 4 0.56 0.096 4.31 -0.414 C Is 3390.37 438971] [468075] 2 2 0.88 0.151 3.37 -0.52 C Is 3425.57 438589] [468154] 6 4 0.051 0.0060 0.404 - 1.446 C Is 3405.97 [438724] [468075] 4 2 0.172 0.0149 0.67 - 1.224 C Is

9

2p° _ 2J) 3350.7 452985 482821 6 10 1.23 0.346 22.9 0.317 c ca

(4) 3349.11 453073 482923 4 6 1.23 0.311 13.7 0.094 c Is 3348.08 452808 482668 2 4 1.03 0.345 7.6 -0.162 c Is 3378.09 453073 482668 4 4 0.201 0.0344 1.53 -0.86 c Is

10 2p° 2§ 2505.8 452985 492880 6 2 3.04 0.095 4.72 -0.243 c ca

(5) 2511.4] 453073 492880 4 2 2.01 0.095 3.15 - 0.420 c Is [2494.8] 452808 492880 2 2 1.02 0.096 1.57 -0.72 c Is

11 2s2p3s' — 2p° _ 2£) 3490.9 518688 547326 6 10 0.99 0.301 20.8 0.257 c ca

2s2p( 1 P°)3p' (14)

3489.84 518690 547336 4 6 0.99 0.272 12.5 0.037 c Is 3492.24 518684 547311 2 4 0.82 0.300 6.9 -0.222 c Is [3492.2] 518684 547311 4 4 0.165 0.0302 1.39 -0.92 c Is

104
O IV. Allowed Transitions — Continued

No. Transition

Array

Multiplet x(A) Ej( cm ') fA-tcm -1

) gi gk /M10*

sec

-1

) fk S(at.u.) log gf Accuracy

Source

12 3p-('S)3<* 2p° 2 J) 3409.1 390219 419544 6 10 1.15 0.334 22.5 0.302 C 3, ca U)

3411.76 390248 419550 4 6 1.15 0.300 13.5 0.080 C Is 3403.58 390161 419534 2 4 0.96 0.335 7.5 -0.174 C Is 3413.71 390248 419534 4 4 0.191 0.0334 1.50 -0.87 C Is

13 2s2p3p — 4 D — 4 F° 3733.4 [468325] [495103] 20 28 0.80 0.235 58 0.67 C ca

2s2p(3 P°)3d (6) 3736.78 [468499] [495253] 8 10 0.80 0.209 20.6 0.224 c Is 3729.03 [468290] [495099] 6 8 0.69 0.193 14.2 0.063 c Is 3725.81 [468154] [494986] 4 6 0.61 0.190 9.3 -0.120 c Is 3725.81 [468075] [494908] 2 4 0.57 0.236 5.8 -0.325 c Is 3758.45 [468499] [495099] 8 8 0.112 0.0237 2.35 -0.72 c Is 3744.73 [468290] [494986] 6 6 0.194 0.0407 3.01 -0.61 c Is 3736.78 [468154] [494908] 4 4 0.224 0.0469 2.31 -0.73 c Is 3774.38 [468075] [494986] 8 6 0.0075 0.00121 0.120 -2.015 c Is 3755.82 [468290] [494908] 6 4 0.0158 0.00222 0.165 -1.87 c Is

14 4 D — 4 D° 3197.4 [468325] [499591] 20 20 0.338 0.052 10.9 0.015 c ca w;

3209.64 [468499] [499647] 8 8 0.286 0.0442 3.74 -0.451 c Is 3194.75 [468290] [499582] 6 6 0.194 0.0296 1.87 -0.75 c Is 3185.72 [468154] [499535] 4 4 0.136 0.0207 0.87 -1.081 c Is 3180.72 [468075] [499506] 2 2 0.173 0.0263 0.55 -1.280 c Is 3216.31 [468499] [499582] 8 6 0.063 0.0073 0.62 -1.232 c Is 3199.53 [468290] [499535] 6 4 0.118 0.0120 0.76 -1.142 c Is 3188.65 [468154] [499506] 4 2 0.172 0.0131 0.55 -1.281 c Is 3188.17 [468290] [499647] 6 8 0.0485 0.0098 0.62 -1.229 c Is 3180.98 [468154] [499582] 4 6 0.080 0.0181 0.76 -1.139 c Is 3177.80 [468075] [499535] 2 4 0.087 0.0263 0.55 -1.279 c Is

15 4S

4 p°

/Q\

3367.6 [474218] [503904] 4 12 0.69 0.350 15.5 0.146 c ca

tot 3375.50 [474218] [503835] 4 6 0.68 0.175 7.8 -0.154 c Is 3362.63 [474218] [503948] 4 4 0.69 0.117 5.2 -0.328 c Is 3354.31 [474218] [504022] 4 2 0.69 0.058 2.58 -0.63 c Is

16 4p 4J)0

/Q\

4792.5 [478731] [499591] 12 20 0.303 0.174 32.9 0.320 c ca

4798.25 [478811] [499647] 6 8 0.303 0.139 13.2 -0.078 c Is 4783.43 [478682] [499582] 4 6 0.213 0.110 6.9 -0.358 c Is 4772.57 [478588] [499535] 2 4 0.128 0.087 2.74 -0.76 c Is 4813.07 [478811] [499582] 6 6 0.090 0.0311 2.96 -0.73 c Is 4794.22 [478682] [499535] 4 4 0.161 0.056 3.51 -0.65 c Is 4779.09 [478588] [499506] 2 2 0.254 0.087 2.74 -0.76 c Is 4823.93 [478811] [499535] 6 4 0.0148 0.00345 0.329 -1.68 c Is 4800.77 [478682] [499506] 4 2 0.050 0.0087 0.55 -1.46 c Is

17 4p 4p° 3971.4 [478731] [503904] 12 12 0.314 0.074 11.6 -0.050 c ca

(10)

3995.17 [478811] [503835] 6 6 0.215 0.051 4.06 -0.51 c Is 3956.82 [478682] [503948] 4 4 0.0425 0.0100 0.52 - 1.399 c Is 3930.63 [478588] [504022] 2 2 0.053 0.0124 0.322 -1.61 c Is 3977.10 [478811] [503948] 6 4 0.140 0.0221 1.74 -0.88 c Is 3945.29 [478682] [504022] 4 2 0.266 0.0310 1.61 -0.91 c Is 3974.66 [478682] [503835] 4 6 0.094 0.0332 1.74 -0.88 c Is 3942.14 [478588] [503948] 2 4 0.133 0.062 1.61 -0.91 c Is

18 2 D - 2 D° 5339.5 482821 501544 10 10 0.075 0.0319 5.6 -0.497 c ca

(11)

5362.4 482923 501566 6 6 0.069 0.0299 3.16 -0.75 c Is 5305.3 482668 501511 4 4 0.069 0.0291 2.03 -0.93 c Is [5378.3] 482923 501511 6 4 0.0074 0.00213 0.226 -1.89 c Is [5290.1] 482668 501566 4 6 0.0052 0.00324 0.226 -1.89 c Is

105
O IV. Allowed Transitions — Continued

No. Transition

Array

Multiplet x(A) Ej( cm ') Ek(cm *) gi gk ^fc ,(108 sec

-1

)

fik S(at.u.) log gf Accuracy

Source

19 2j) _ 2jr° 3563.0 482821 510879 10 14 1.15 0.306 35.9 0.486 c ca

(12)

3563.36 482923 510979 6 8 1.15 0.291 20.5 0.242 c Is 3560.42 482668 510746 4 6 1.08 0.307 14.4 0.089 c Is [3593.1] 482923 510746 6 6 0.075 0.0145 1.03 - 1.060 c Is

20 2g _ 2p° 4674.4 492880 514267 2 6 0.297 0.292 9.0 -0.234 c ca

(13)

[4685.4] 492880 514217 2 4 0.295 0.194 6.0 -0.411 c Is [4652.5] 492880 514368 2 2 0.301 0.098 2.99 -0.71 c Is

21 5f-(l S)6d 1 <N Q

O

Uh

iN 4568 552490 [574375] 14 10 0.124 0.0278 5.9 -0.410 c ca

(15)

Forbidden Transitions

Naqvi’s calculation [1] of the one possible transition in the ground state configuration 2p is the only available source. The line strength should be quite accurate, since it does not sensitively depend on the choice of the interaction parameters.

Reference

[1] Naqvi, A. M., Thesis Harvard (1951).

o IV. Forbidden Transitions

No. Transition

Array

Multiplet mA) £i(cm x

) Ek{ cm x) gi gk

Type of

TransitionAki ( sec x ) S(at.u.) Accuracy

Source

1 2p — 2p

2p° _ 2p°

[25.87 x 104

] 0 386.5 2 4 m 5.18 X 10-4 1.33 B 1

106
Ov

Ground State Is2 2s2 ‘So

Ionization Potential 113.873 eV = 918702 cm"1

Allowed Transitions

List of tabulated lines:

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

172.168 2 3230 18 5114 10

192.751 8 3239 12 5343 21

192.80 8 3245 18 5352 21

192.800 8 3249 18 5376 21

192.906 8 3264 18 5417 21

192.91 8 3275.67 12 5432 21

192.92 8 3298 18 5473 21

215.034 6 3692 17 5573 15

215.104 6 3701 17 5582 15

215.245 6 3703 17 5584 15

220.352 9 3717 17 5600 15

248.459 7 3726 17 5606 15

629.732 1 3747 17 5608 15

758.677 3 3762 17 6329 22

759.440 3 4120 11 6767 20

760.229 3 4121.7 19 6790 20

760.445 3 4123 11 6819 20

761.131 3 4123.90 11 6830 20

762.001 3 4135.9 19 6878 20

774.522 5 4151 11 6909 20

7438 24

1371.29 4 4158.76 19

3058.68 13 4179 11 3144.68 14 4211 11 3222 12 4522 23

3222 18 4554.28 16

Values for the 2s2 — 2s2p and 2s2p — 2p2 transition arrays are taken from the self-consistent

field calculations of Weiss [1]. These calculations do not include the important effects of configuration interaction; hence large uncertainties must be expected. The average of the dipole

length and velocity approximations is adopted [1]. Accuracies within 50 percent are indicated

by the following comparison: Weiss [1] has undertaken refined calculations, including configuration

interaction, for the same transitions in Bel — the first member of this isoelectronic sequence — in

addition to calculations of the type done for this ion. In all cases the agreement with the average

of the dipole length and velocity approximations is close.

For the remaining low-lying transitions Kelly’s approximate Hartree-Fock calculations [2] are adopted, while for the moderately excited transitions Kelly’s values are averaged with the

Coulomb approximation, with which they agree quite well.

References

[1] Weiss, A. W., private communication (1964).

[2] Kelly, P. S., J. Quant. Spectrosc. Radiat. Transfer 4, 117-148 (1964).

107
Ov. Allowed Transitions

No. Transition Multiplet x(A) £,(cm *) Ek( cm ') gi gk /1a-/(10

8 sec J ) fik S(at.u.) log gf Accu- Source

Array racy

1 2s2 - c/5 1 o 629.732 0 158798 1 3 30 0.53 1.1 -0.28 D 1 2s(2 S)2p (1 uv)

2 2s2 - 0 GO 1Oh 172.168 0 580826 1 3 450 0.59 0.34 -0.23 D 2

2s( 2 S)3p (2 uv)

3 2s2p — 2

p

2 3p° 3p 760.36 [82413] [213929] 9 9 21 0.18 4.1 0.21 D 1 (3 uv)

760.445 [82564] [214066] 5 5 16 0.14 1.7 -0.17 D Is 760.229 [82258] [213797] 3 3 5.2 0.045 0.34 -0.87 D Is 762.001 [83564] [213797] 5 3 8.6 0.045 0.56 -0.65 D Is 761.131 [82258] [213642] 3 1 21 0.060 0.45 -0.75 D Is 758.677 [82258] [214066] 3 5 5.2 0.075 0.56 -0.65 D Is 759.440 [82121] [213797] 1 3 6.9 0.18 0.45 -0.74 D Is

4 *60 1 6 1371.29 158798 231722 3 5 6.7 0.32 4.3 -0.03 D 1 (7 uv)

5 1an o 774.522 158798 287909 3 1 21 0.062 0.48 -0.73 D 1 (8 uv)

6 2s2p — 3p° 3§ 215.18 [82413] [547150] 9 3 211 0.0488 0.311 -0.358 C 2

2s( 2 S)3s (4 uv)

215.245 [82564] [547150] 5 3 117 0.0488 0.173 -0.61 C Is 215.104 [82258] [547150] 3 3 71 0.0490 0.104 -0.83 C Is 215.034 [82121] [547150] 1 3 23.5 0.0489 0.0346 -1.311 C Is

7

i P°_iS 248.459 158798 561278 3 1 137 0.0424 0.104 -0.90 c 2

(9 uv)

8 2s2p — 3p°_ 3J) 192.85 [82413] [600943] 9 15 680 0.64 3.63 0.76 c 2

2s( 2 S)3d (5 uv)

192.906 [82564] [600956] 5 7 680 0.53 1.69 0.425 c Is 192.800 [82258] [600936] 3 5 510 0.478 0.91 0.157 c Is 192.751 [82121] [600926] 1 3 380 0.64 0.403 -0.197 c Is [192.91] [82564] [600936] 5 5 171 0.095 0.303 -0.321 c Is [192.80] [82258] [600926] 3 3 286 0.159 0.303 -0.321 c Is [192.92] [82564] [600926] 5 3 19.0 0.0064 0.0202 - 1.498 c Is

9 *00 1 6 220.352 158798 612617 3 5 458 0.56 1.21 0.222 c 2

(10 uv)

10 2s3s — 0

an 1Oh 5114 547150 580826 1 3 0.253 0.298 5.01 -0.526 c + 2, ca

2s( 2S)3p (1)

11 2p3s — 3p° 3J) 4130.4 [653435] [677639] 9 15 0.483 0.206 25.2 0.268 c ca

2p( 2 P°)3p (4) 4123.90 [653605] [677847] 5 7 0.487 0.174 11.8 -0.061 c Is 4120 [653262] [677532] 3 5 0.365 0.155 6.3 -0.333 c Is 4123 [653100] [677333] 1 3 0.270 0.206 2.80 -0.69 c Is 4179 [653605] [677532] 5 5 0.117 0.0305 2.10

* -0.82 c Is 4151 [653262] [677333] 3 3 0.198 0.051 2.10 -0.81 c Is 4211 [653605] [677333] 5 3 0.0127 0.00202 0.140 -1.99 c Is

12 3p° 3§ 3257.5 [653435] [684124] 9 3 1.01 0.053 5.2 -0.318 c ca

(5) 3275.67 [653605] [684124] 5 3 0.55 0.053 2.87 -0.57 c Is 3239 [653262] [684124] 3 3 0.342 0.054 1.72 -0.79 c Is 3222 [653100] [684124] 1 3 0.116 0.054 0.57 - 1.268 c Is

13 0 1 6 3058.68 664486 697170 3 5 1.30 0.305 9.2 -0.039 c ca

(6)

14 2s3p — ip°-iD 3144.68 580826 612617 3 5 1.05 0.258 8.02 -0.111 c + 2, ca

2s(2 S)3d (2)

108
Ov. Allowed Transitions — Continued

No. Transition

Array

Multiplet mA) £i(cm ') Ek(cm ') gi gk Ta,(10h sec-') fk S(at.u.) log gf Accuracy

Source

15 3p° _ 3 J) 5590.0 [583059] [600943] 9 15 0.176 0.138 22.8 0.093 C + 2, ca

(3) 5600 [583097] [600956] 5 7 0.175 0.115 10.6 -0.240 C + Is 5582 [583020] [600936] 3 5 0.133 0.103 5.70 -0.508 C + Is 5573 [582984] [600926] 1 3 0.0987 0.138 2.53 -0.861 C + Is 5606 [583097] [600936] 5 5 0.0437 0.0206 1.90 -0.987 c + Is 5584 [583020] [600926] 3 3 0.0737 0.0345 1.90 -0.986 c + Is 5608 [583097] [600926] 5 3 0.00486 0.00138 0.127 -2.163 c + Is

16 2p3p — i P _ i D

° 4554.28 672965 694646 3 5 0.233 0.121 5.4 -0.440 c ca

2p( 2 P°)3d (7)

17 3 D — 3 D°

/ q\ 3727.5 [667639] [704459] 15 15 0.155 0.0323 6.0 -0.314 c ca

toj

3747 [677847] [704527] 7 7 0.136 0.0286 2.47 -0.70 c Is 3717 [677532] [704424] 5 5 0.109 0.0226 1.38 -0.95 c Is 3701 [677333] [704360] 3 3 0.119 0.0244 0.89 -1.135 c Is 3762 [677847] [704424] 7 5 0.0235 0.00356 0.309 -1.60 c Is 3726 [677532] [704360] 5 3 0.0388 0.00484 0.297 -1.62 c Is 3703 [677532] [704527] 5 7 0.0176 0.0051 0.309 -1.60 c Is 3692 [677333] [704424] 3 5 0.0239 0.0081 0.297 -1.61 c Is

18 3 J) _ 3p° 3268.4 [677639] [708226] 15 9 0.0264 0.00254 0.410 -1.419 c ca

3298 [677847] [708154] 7 5 0.0216 0.00251 0.191 -1.75 c Is 3249 [677532] [708296] 5 3 0.0201 0.00191 0.102 -2.021 c Is 3222 [677333] [708379] 3 1 0.0276 0.00143 0.0455 -2.368 c Is 3264 [677532] [708154] 5 5 0.00397 6.3 X lO"4 0.0341 -2.499 c Is 3230 [677333] [708296] 3 3 0.0068 0.00107 0.0341 - 2.494 c Is 3245 [677333] [708379] 3 5 2.70 X 10-4 7.1 x 10~5 0.00228 -3.67 c Is

19 3§ 3p° 4147.9 [684124] [708226] 3 9 0.259 0.200 8.2 -0.222 c ca (ID

4158.76 [684124] [708154] 3 5 0.257 0.111 4.56 -0.478 c Is 4135.9 [684124] [708296] 3 3 0.261 0.067 2.73 -0.70 c Is 4121.7 [684124] [708379] 3 1 0.264 0.0224 0.91 -1.173 c Is

20 3p _ 3J)° 6816.6 [ 689793

]

[704459] 9 15 0.075 0.088 17.7 -0.103 c ca

(12)

6830 [689890] [704527] 5 7 0.075 0.073 8.3 -0.435 c Is 6790 [689700] [704424] 3 5 0.057 0.066 4.42 -0.70 c Is 6767 [689586] [704360] 1 3 0.0430 0.088 1.97 -1.053 c Is 6878 [689890] [704424] 5 5 0.0183 0.0130 1.47 -1.188 c Is 6819 [689700] [704360] 3 3 0.0313 0.0218 1.47 -1.184 c Is 6909 [689890] [704360] 5 3 0.00201 8.6 x lO"4 0.098 -2.364 c Is

21 3p _ 3p° 5423.6 [689793] [708226] 9 9 0.87 0.384 62 0.54 c ca

(13)

5473 [689890] [708154] 5 5 0.64 0.285 25.7 0.154 c Is 5376 [689700] [708296] 3 3 0.223 0.097 5.1 -0.54 c Is 5432 [689890] [708296] 5 3 0.361 0.096 8.6 -0.320 c Is 5352 [689700] [708379] 3 1 0.91 0.130 6.9 -0.410 c Is 5417 [689700] [708154] 3 5 0.218 0.160 8.6 -0.318 c Is 5343 [689586] [708296] 1 3 0.304 0.390 6.9 -0.409 c Is

22 *D — 1 F° 6329 697170 712967 5 7 0.136 0.114 11.9 -0.243 c ca

(14)

23 i D -ip° 4522 697170 719277 5 3 0.0110 0.00203 0.151 -1.99 c ca

(15)

24 2s4s — 3g 3p° 7438 [722666] [736107] 3 9 0.287 0.715 52.5 0.331 c + 2, ca

2s(2 S)4p (17)

109
Forbidden Transitions

Naqvi’s calculations [1] are the only available source. The results for the 3P°— 3 P° transitions are essentially independent of the choice of the interaction parameters. For the 3 P°— 1 P°

transitions, Naqvi has used empirical term intervals, i.e., the effects of configuration interaction

should be partially included.

Reference

[1] Naqvi, A. M., Thesis Harvard (1951).

OV. Forbidden Transitions

No. Transition

Array

Multiplet x(A) £i(cm *) Ek( cm Q gi gk Type of

Transition

Aki( sec

-1

) S(at.u.) Accuracy Source

1 2s2p — 3p° _3jy>

2s(2 S)2p [73.13 X 104

] [82121.2] [82257.9] 1 3 m 4.60 X 10-5 2.00 B 1 [32.65 x 104

] [82257.9]! [82564.1] 3 5 m 3.87 X 10-4 2.50 B 1

2 00 8u 1*

co

[1304.2] [82121.2] 158798 1 3 m 0.064 1.57 X 10“5 C 1 [1306.5] [82257.9] 158798 3 3 m 16.9 0.00420 C 1 [1311.8] [82564.1] 158798 5 3 m 0.078 1.96 X 10-5 C 1 Ovi

Ground State I*2 25 2 Sl/2

Ionization Potential

Allowed Transitions

138.080 eV= 1113999.5 cm"1

List of tabulated lines:

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

129.786 5 1031.95 1 4751 14

129.87 5 1037.63 1 5112 16

129.872 5 3068 8 5279 18

150.088 2 3314 10 5298 19

150.124 2 3426 12 5410 17

172.935 4 3438 13 5602 15

173.082 4 3509 11 11744 7 173.09 4 3622 9 11892 7 183.937 3 3811.35 6 11964 7 184.117 3 3834.24 6

The values taken from Weiss’ calculations [1] are estimated to be accurate to within 10% be- cause of the very close agreement between his dipole length and dipole velocity approximations.

The values calculated with the length approximation are adopted. The Coulomb approximation

should be quite reliable for the highly excited transitions and is given perference over Kelly’s

approximate Hartree-Fock calculations [2], with which it sometimes disagrees.

References

[1] Weiss, A. W„ Astrophys. J. 138, 1262-1276 (1963).

[2] Kelly, P. S., J. Quant. Spectrosc. Radiat. Transfer 4, 117-148 (1964).
OVI. Allowed Transitions

Vo. Transition

Array

Multiplet x(A) Zs,(cm -1

) Ekicm ') gt gk /M108 sec

-1

) fk S(at.u.) log gf Accuracy

Source

1 2s — 2p

2g _ 2p° 1033.8 0.0 96730 2 6 4.08 0.196 1.33 -0.407 A 1 (1 uv)

1031.95 0.0 96908 2 4 4.09 0.131 0.887 -0.583 A Is 1037.63 0.0 96375 2 2 4.02 0.0648 0.443 -0.887 A Is

2 2s — 3p

2g _ 2p° 150.10 0.0 666218 2 6 259 0.262 0.259 -0.281 B + 1 (2 uv)

150.088 0.0 666270 2 4 259 0.175 0.173 -0.456 B + Is 150.124 0.0 666113 2 2 259 0.0874 0.0864 -0.757 B + Is

3 2p — 3s 2p° _ 2g 184.06 96730 640040 6 2 170 0.0287 0.104 -0.764 B + 1 (3 uv)

184.117 96908 640040 4 2 113 0.0287 0.093 -0.939 B + Is 183.937 96375 640040 2 2 56.7 0.0287 0.0347 -1.241 B + Is

4 2p — 3d 2p° — 2J) 173.03 96730 674657 6 10 884 0.662 2.26 0.599 B + 1 (4 uv)

173.082 96908 674677 4 6 886 0.597 1.36 0.378 B + Is 172.935 96375 674626 2 4 737 0.661 0.753 0.121 B + Is [173.09] 96908 674626 4 4 147 0.0662 0.151 -0.577 B + Is

5 2p — 4d

2p° _ 2J) 129.84 96730 866893 6 10 287 0.121 0.310 -0.139 B ca

(5 uv)

129.872 96908 866902 4 6 285 0.108 0.185 -0.364 B Is 129.786 96375 866880 2 4 239 0.121 0.103 -0.618 B Is [129.87] 96908 866880 4 4 47.6 0.0120 0.0206 -1.317 B Is

6 3s — 3p

2g 2p° 3818.9 640040 666218 2 6 0.510 0.335 8.41 -0.175 B 1 (1) 3811.35 640040 666270 2 4 0.513 0.224 5.61 - 0.350 B Is 3834.24 640040 666113 2 2 0.503 0.111 2.80 - 0.654 B Is

7 £ 1 CO "0 2p° _ 2J) 11847 666218 674657 6 10 0.0137 0.0481 11.3 -0.540 B 1

[11892] 666270 674677 4 6 0.0136 0.0433 6.78 -0.762 B Is [11744] 666113 674626 2 4 0.0118 0.0488 3.77 -1.011 B Is [11964] 666270 674626 4 4 0.00223 0.00478 0.753 -1.719 B Is

8 6s — Ip 2g 2p° 3068 1000080 1032630 2 6 0.874 0.370 7.47 -0.131 B ca

(2)

9 6p — Is 2p° 2§ 3622 1003130 1030780 6 2 2.72 0.178 12.7 0.029 B ca

(3)

0 6p — Id 2p° _ 2J) 3314 1003130 1033324 6 10 2.02 0.554 36.3 0.522 B ca

(4)

1 6d— Ip 2J) _ 2p° 3509 1004178 1032630 10 6 0.860 0.0952 11.0 -0.021 B ca

(5)

2 (id— If 2J) _ 2p° 3426 1004178 [1033382] 10 14 3.34 0.824 92.9 0.916 B ca

(6)

3 (f- Id 2p° _ 2 J) 3438 [1004265] 1033324 14 10 0.337 0.0426 6.75 -0.225 B ca

(7)

4 Is — 8p 2g 2p° 4751 1030780 1051724 2 6 0.423 0.429 13.4 -0.067 B ca

(10)

5 7p — 8s 2p° 2g 5602 1032630 [1050543] 6 2 1.38 0.216 23.9 0.113 B ca

( 11 )

111

766-655 0-66—9
OVI. Allowed Transitions — Continued

No. Transition

Array

Multiplet mA) £i(cm ’) Ek( cm ') gi gk dA,(108 sec

-1

)

fik S(at.u.) log gf Accuracy

Source

16 7p — 8d 2p° 2]) (12)

5112 1032630 1052296 6 10 0.923 0.603 60.9 0.559 B ca

17 7d-8p 2£) 2p°

(13)

5410 1033324 1051724 10 6 0.491 0.129 23.0 0.111 B ca

18 7d — 8f 2f) _ 2p°

(14)

5279 1033324 [1052280] 10 14 1.64 0.960 167 0.982 B ca

19 7f—8d 2p° _ 2J) (15)5298 [1033382] 1052296 14 10 0.255 0.0766 18.7 0.030 B 2

Ovn

Ground State Is2

Ionization Potential 739.114 eV = 5963000 cm-1

Allowed Transitions

The results of extensive non-relativistic variational calculations by Weiss [1] are used. Values

have been calculated in both the dipole length and dipole velocity approximations and agree to within 1 percent, except for the 3p

1 P° — 3cPD transition where agreement is not as good. The

average of the two approximations is adopted [1].

Reference

[1] Weiss, A. W., private communication (1964).

O VII. Allowed Transitions

No. Transition

Array

Multiplet mA) Ei( cm 9 Eidcm 9 gi gk ^fci (108 sec

-1

) fik S(at. u.) log gf Accuracy

Source

1 ls2 -ls2p iS-ip0 [21.602] 0 4629200 1 3 33000 0.694 0.0494 -0.158 A 1

2 Is2 — ls3p i S -ip° [18.627] 0 5368550 1 3 9370 0.146 0.00897 - 0.835 A 1

3 ls2s— ls2p i S -ip° [2475.4] [4588814] 4629200 1 3 0.246 0.0679 0.553 -1.168 A 1

4 ls2s — ls3p i S -ip° [128.25] [4588814] 5368550 1 3 504 0.373 0.158 -0.428 A 1

5 ls2p — ls3d i P

°-iD [135.77] 4629200 [5365734] 3 5 1530 0.705 0.945 0.325 A 1

6 ls3d — ls3p ip-tp0 [35500]? [5365734] 5368550 5 3 6.99 X 10 -4 0.00792 4.62 - 1.402 C + 1

7 ls2s— ls2p 3g _ 3p° [1630.3] 4525270 [4586610] 3 9 0.794 0.0949 1.53 - 0.546 A 1

8 ls2s — ls3p 3§ _ 3p° [120.33] 4525270 5356300 3 9 533 0.347 0.413 0.018 A 1

9 ls2p— ls3d 3p° _ 3J) [728.46] [4586670] 5365070 9 15 1620 0.666 2.54 0.778 A 1

10 ls3p — ls3d 3f>° _ 3J) [11399]? 5356300 5365070 9 15 0.0113 0.0367 12.4 -0.481 A 1

112
FLUORINE

F I. Ground State ls22s22p5 2 P°/2

Ionization Potential 17.418 eV = 140524.5 cm-1

Allowed Transitions

List of tabulated lines:

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

6239.64 3 6909.82 2 7489.14 5

6348.50 3 6966.35 6 7514.93 1 6413.66 3 7037.45 6 7552.24 1 6708.27 2 7127.88 6 7573.41 1 6773.97 2 7202.37 6 7607.17 4

6795.52 2 7311.02 5 7754.70 4

6834.26 2 7331.95 1 7800.22 4

6856.02 2 7398.68 1 6870.22 2 7425.64 1 6902.46 2 7482.72 1

Since there are no numerical data available for this spectrum, values for the prominent lines

have been calculated from the Coulomb approximation by Bates and Damgaard. This method is expected to give fairly reliable results as judged from other atomic systems of similar complexity,

where comparison data have been available.

F I. Allowed Transitions

No. Transition

Array

Multiplet

x(A) £i(cm 4 ) Ek ( cm ! ) gi gk 4(10*

sec

-1

)

fik S(at.u.) log gA Accuracy

Source

1 2p43s — 4*. *0 1 TJO 7490.3 102571 115918 12 12 0.35 0.29 86 0.54 D ca 2p4

( 3 P)3p (1) 7398.68 102407 115919 6 6 0.25 0.21 30 0.09 D Is 7482.72 102681 116042 4 4 0.047 0.039 3.9 -0.81 D Is 7514.93 102841 116144 2 2 0.058 0.049 2.4 -1.01 D Is 7331.95 102407 116042 6 4 0.17 0.089 13 -0.27 D Is 7425.64 102681 116144 4 2 0.30 0.12 12 -0.31 D Is 7552.24 102681 115919 4 6 0.10 0.13 13 -0.28 D Is 7573.41 102841 116042 2 4 0.14 0.24 12 -0.31 D Is

2 4p 4J)° 6859.2 102571 117146 12 20 0.45 0.53 140 0.80 D CO

(2) 6856.02 102407 116988 6 8 0.45 0.42 57 0.40 D Is 6902.46 102681 117165 4 6 0.31 0.33 30 0.12 D Is 6909.82 102841 117309 2 4 0.18 0.26 12 -0.28 D Is 6773.97 102407 117165 6 6 0.14 0.095 13 -0.24 D Is 6834.26 102681 117309 4 4 0.24 0.17 15 -0.17 D Is 6870.22 102841 117393 2 2 0.38 0.27 12 - 0.27 D Is 6708.27 102407 117309 6 4 0.024 0.011 1.4 -1.19 D Is 6795.52 102681 117393 4 2 0.077 0.027 2.4 -0.97 D Is

113
Allowed Transitions — Continued

No. Transition

Array

Multiplet

X(A) Ei{ cm x

) facin'1

) 8 gk ^fci (108 sec x ) Ak S(at.u.) log gf Accuracy

Source

3

4 P- 4 S° 6304.2 102571 118429 12 4 0.56 0.11 28 0.12 D ca

(3) 6239.64 102407 118429 6 4 0.29 0.11 14 -0.18 D Is 6348.50 102681 118429 4 4 0.18 0.11 9.3 -0.35 D Is 6413.66 102841 118429 2 4 0.090 0.11 4.7 -0.65 D Is

4 2p 2J)° 7759.4 104840 117724 6 10 0.35 0.53 80 0.50 D ca

(4) 7754.70 104732 117624 4 6 0.35 0.47 48 0.27 D Is 7800.22 105057 117874 2 4 0.29 0.53 27 0.02 D Is 7607.17 104732 117874 4 4 0.061 0.053 5.3 -0.67 D Is

5 2p _ 2g° 7369.3 104840 118406 6 2 0.40 0.11 16 -0.18 D ca

(5) 7311.02 104732 118406 4 2 0.27 0.11 11 -0.36 D Is 7489.14 105057 118406 2 2 0.13 0.11 5.4. -0.66 D Is

6

to *0 1 to o 7067.02 104840 118986 6 6 0.46 0.34 48 0.31 D ca

(6) 7037.45 104732 118938 4 4 0.38 0.28 26 0.05 D Is 7127.88 105057 119083 2 2 0.30 0.23 11 -0.35 D Is 6966.35 104732 119083 4 2 0.16 0.056 5.2 -0.65 D Is 7202.37 105057 118938 2 4 0.072 0.11 5.3 -0.65 D Is

Forbidden Transitions

Naqvi’s calculation [1] of the one possible transition in the ground state configuration 2p

5 is the only available source. The line strength should be quite accurate, since it does not sensitively

depend on the choice of the interaction parameters.

Reference

[1] Naqvi, A. M., Thesis Harvard (1951).

F I. Forbidden Transitions

No. Transition

Array

Multiplet mA) £i(cm x ) £V(cm x ) gi gk Type of

Transition

Aki( sec x

) S(at. u.) Accuracy

Source

1 2p5 — 2p5 2po 2p°

[24.75 x 104

] 0.0 404.0 4 2 m 0.00118 1.33 B 1

114
F II.

Ground State \s22s22p4 3 P2

Ionization Potential 34.98 eV = 282190.2 cm-1

Allowed Transitions

List of tabulated lines:

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

605.67 1 3535.2 5 4103.09 9

606.27 1 3536.84 5 4103.3 9

606.81 1 3538.6 5 4103.53 9

606.95 1 3541.77 5 607.48 1 4103.72 9

3544.5 5 4103.87 9

608.06 1 3546.1 5 4104.1 9

3202.74 7 3640.89 10 4109.17 4

3501.42 8 3640.9 10 4112.7 4

3501.5 8 3641.99 10

3501.6 8 4113.1 4

3642.80 10 4116.55 4

3502.9 8 3847.09 2 4117.1 4

3502.95 8 3849.99 2 4118.8 4

3503.10 8 3851.67 2 4119.22 4

3505.4 8 4024.73 3

3505.6 8 4246.16 11 4025.01 3 4299.18 6

3505.61 8 4025.50 3 4446.9 12

For one of the strongest ultraviolet transitions a value calculated by Varsavsky [1] from a screening approximation is available and listed. Because the strong effects of configuration interaction have been neglected, this number should be quite uncertain. (In general, Varsavsky’s

values have a tendency to be too large.) Values obtained with the Coulomb approximation are presented for all prominent transitions in the visible and near ultraviolet. The indicated accuracies are estimated from extrapolation with equivalent transitions of O I, for which experimental

and theoretical comparison data are available.

Reference

[1] Varsavsky, C. M., Astrophys. J. Suppl. Ser. 6, 75-108 (1961).

F II. Allowed Transitions

No. Transition

Array

Multiple

MA) go 3 Ek{cm 4

) gi gk ^i(108 sec

-1

)

fik S(at.u.) log gf Accuracy —Source

1 2s2 2p4 — CO 1 CO o 606.85 169 164955 9 9 100 0.56 10 0.70 E 1 2s2p5 (1 uv)

606.81 0 164798 5 5 78 0.43 4.3 0.33 E Is 606.95 342 165107 3 3 26 0.14 0.86 -0.37 E Is 605.67 0 165107 5 3 43 0.14 1.4 -0.15 E Is 606.27 342 165281 3 1 100 0.18 1.1, - 0.26 E Is 608.06 342 164798 3 5 25 0.23 1.4 -0.16 E Is 607.48 491 165107 1 3 33 0.55 1.1 -0.26 E Is

2 2p33s — 5 S°- 5 P 3848.9 [176654] [202628 1 5 15 1.3 0.84 54 0.62 D ca 2p3

( 4 S°)3p (1) 3847.09 [176654] [202641

1

5 7 1.3 0.39 25 0.29 D Is 3849.99 1176654] [202621] 5 5 1.3 0.28 18 0.15 D Is 3851.67 [176654] [202610] 5 3 1.3 0.17 11 - 0.08 D Is

115
FlI. Allowed Transitions — Continued

No. Transition

Array

Multiplet

\(A) Ei( cm 4

) Ek{cm *) & gk ^•i(108 sec

-1

)

fut S(at.u.) log gf Accuracy

Source

3

3§° _ 3p 4025.0 182865 207703 3 9 1.2 0.90 36 0.43 D ca

(2) 4024.73 182865 207705 3 5 1.2 0.50 20 0.18 D Is 4025.50 182865 207700 3 3 1.2 0.30 12 -0.04 D Is 4025.01 182865 207703 3 1 1.2 0.10 4.0 -0.52 D Is

4 2p33s' — 3 D° — 3 D 4113.7 211881 236183 15 15 1.8 0.45 92 0.83 D ca 2p3

( 2 D°)3p' (5) 4109.17 211867 236196 7 7 1.6 0.40 38 0.45 D Is 4116.55 211888 236173 5 5 1.2 0.32 21 0.20 D Is 4119.22 211901 236170 3 3 1.3 0.34 14 0.01 D Is [4113.1] 211867 236173 7 5 0.28 0.050 4.8 -0.45 D Is [4117.1] 211888 236170 5 3 0.45 0.068 4.6 -0.47 D Is [4112.7] 211888 236196 5 7 0.20 0.071 4.8 -0.45 D Is [4118.8] 211901 236173 3 5 0.27 0.11 4.6 -0.47 D Is

5 3J)° 3p 3539.8 211881 240123 15 9 2.1 0.23 40 0.54 D ca

(6) 3541.77 211867 240093 7 5 1.7 0.23 19 0.21 D Is 3536.84 211888 240153 5 3 1.5 0.17 10 -0.06 D Is [3535.2] 211901 240180 3 1 2.1 0.13 4.5 -0.42 D Is [3544.5] 211888 240093 5 5 0.31 0.058 3.4 -0.54 D Is [3538.6] 211901 240153 3 3 0.51 0.096 3.4 -0.54 D Is [3546.1] 211901 240093 3 5 0.021 0.0064 0.23 -1.71 D Is

6

1 D°- 1 F 4299.18 215070 238324 5 7 1.7 0.64 45 0.51 D ca

(7)

7

1 D°— ‘D 3202.74 215070 246284 5 5 1.4 0.21 11 0.02 D ca

(8)

8 2p33p — 5p_5D

° 3504.0 [202628] [231159] 15 25 2.86 0.88 152 1.120 C ca 2p3

( 4 S°)3<i (3) 3505.61 [202641] [231158] 7 9 2.86 0.68 55 0.68 C Is 3503.10 [202621] [231159] 5 7 1.91 0.491 28.3 0.390 C Is [3501.6] [202610] [231160] 3 5 1.00 0.307 10.6 -0.036 C Is [3505.6] [202641] [231159] 7 7 0.95 0.175 14.2 0.089 c Is 3502.95 [202621] [231160] 5 5 1.67 0.307 17.7 0.186 c Is [3501.5] [202610] [231161] 3 3 2.15 0.395 13.7 0.074 c Is [3505.4] [202641] [231160] 7 5 0.190 0.0251 2.02 -0.76 c ^.Is [3502.9] [202621] [231161] 5 3 0.72 0.079 4.55 -0.404 c Is 3501.42 [202610] [231161] 3 1 2.86 0.175 6.1 -0.279 c Is

9 3p _ 3J)° 4103.4 207703 232066 9 15 2.05 0.86 105 0.89 c ca

(4) 4103.53 207705 232067 5 7 2.05 0.72 48.8 0.56 c Is 4103.09 207700 232065 3 5 1.54 0.65 26.2 0.287 c Is 4103.72 207703 232064 1 3 1.14 0.86 11.6 -0.065 c Is 4103.87 207705 232065 5 5 0.51 0.129 8.7 . -0.190 c Is [4103.3] 207700 232064 3 3 0.85 0.215 8.7 -0.190 c Is [4104.1] 207705 232064 5 3 0.057 0.0086 0.58 -1.366 c Is

10 2p33p' - 3p _ 3p° 3641.7 237509 264961 21 21 0.147 0.0292 7.3 -0.213 c- ca 2p3

( 2 D°)3d' (IT)

3640.89 237508 264966 9 9 0.137 0.0273 2.95 -0.61 c- Is 3641.99 237509 264959 7 7 0.123 0.0245 2.06 -0.77 c- Is 3642.80 237509 264953 5 5 0.130 0.0259 1.55 -0.89 c- Is 3641.99 237508 264959 9 7 0.0118 0.00182 0.197 -1.79 c- Is 3642.80 237509 264953 7 5 0.0163 0.00231 0.194 -1.79 c- Is [3640.9] 237509 264966 7 9 0.0092 0.00234 0.196 -1.79 c- Is 3641.99 237509 264959 5 7 0.0116 0.00324 0.194 -1.79 c- Is

11 2p33d — 5D° — 5F 4246.16 [231159] [254703] 25 25 2.47 0.93 326 1.368 c ca 2p3

( 4 S°)4/ (9)

12 3£)° _ 3p 4446.9 232066 254547 15 21 2.35 0.97 214 1.165 c ca

(10)

116
Forbidden Transitions

The adopted values represent the results of calculations by Garstang [1J and Naqvi [2], which

are very similar in character. Garstang’s evaluation of the quadrupole integral s(, is considered

the more refined one; therefore, the quadrupole line strengths are taken from his paper. Naqvi,

in his calculations of magnetic dipole lines, retains the spin-spin and spin-other-orbit integral in

the transformation coefficients, while Garstang neglects it. Thus, Naqvi’s values are chosen,

whenever this becomes significant. When this refinement is not sensitive, the two authors agree.

For the 3P — ! S transition the important effects of configuration interaction are most appropriately

taken into account by Garstang’s method, so that his values are used. (Further explanations are found in the general introduction.)

References

[1] Garstang, R. H., Monthly Notices Roy. Astron. Soc. Ill, 115-124(1951).

[2] Naqvi, A. M., Thesis Harvard (1951).

F ii. Forbidden Transitions

No. Transition Multi- MA) £i(cm 4

) Ek ( cm J ) g> gk Type of Aki( sec *) S(at.u.) Accu- Source

Array plet Transition racy

1 2p4 — 2p4 3p __3p

[29.25 x 104

] 0.0 341.8 5 3 m 8.97 x 10-4 2.50 B 1,2

[29.25 X 104

] 0.0 341.8 5 3 e 2.30 X 10- 10 0.88 C 1 [20.38 X 104

] 0.0 490.6 5 1 e 1.80 X 10-9 0.376 C 1 [67.19 X 104

] 341.8 490.6 3 1 m 1.78 X 10-4 2.00 B 1,2

2

3 P-’D

(1 F)

4789.5 0.0 20873 5 5 m 3.81 7.8 X 10-4 C 2 4789.5 0.0 20873 5 5 e 9.6 x 10-5 7.2 X 10-4 D 1 4869.3 341.8 20873 3 5 m 0.0121 2.59 x 10-4 C 2 4869.3 341.8 20873 3 5 e 1.3 X lO"5 1.1 X 10-4 D 1 [4904.8] 490.6 20873 1 5 e 4.1 x 10“6 3.5 x 10-5 D 1

3

3 p_lS

[2225.5] 0.0 44919 5 1 e 0.0016 5.2 X 10"5 D 1 [2246.6] 341.8 44919 3 1 m 0.490 2.06 x 10-4 C 1

4 Tt-iS

(2 F)

4157.5 20873 44919 5 1 e 2.10 1.55 C 1

Ground State

Ionization Potential

F III.

ls2 2s2 2p3 4 S°3/2

62.646 eV = 505410 cm'1

Allowed Transitions

After having written introductory remarks for 9.2 elements, we must confess that this becomes

a rather cumbersome exercise in style. Since we expect that this introduction will share the fate

of most introductions (namely be ignored) and since there is nothing new to say on this ion (for

scientific content see F i) we might as well give the few readers of this introduction some good

advice:

If there is no other data source,

Use the Coulomb approximation, of course. The results should be certainly fine

For any moderately or highly excited line.

117
F III. Allowed Transitions

No. Transition

Array

Multipletx(A) Ei ( cm x

) Ek(cm x

) gi gk ^•i(108 sec

-1

)

fik S(at.u.) log gf Accuracy

Source

1 2p23s - T) 1 a

o 3124.4 317043 349040 12 20 1.6 0.40 48 0.67 D ca 2p2

( 3 P)3p (1) 3121.52 317238 349264 6 8 1.6 0.31 19 0.27 D Is 3115.67 316919 349005 4 6 1.1 0.25 10 -0.01 D Is 3113.58 316707 348815 2 4 0.67 0.19 4.0 -0.41 D Is 3146.96 317238 349005 6 6 0.47 0.070 4.3 -0.38 D Is 3134.21 316919 348815 4 4 0.84 0.12 5.1 -0.30 D Is 3124.76 316707 348701 2 2 1.3 0.19 4.0 -0.41 D Is 3165.86 317238 348815 6 4 0.077 0.0077 0.48 -1.34 D Is 3145.54 316919 348701 4 2 0.26 0.019 0.80 -1.11 D Is

2 2p_2J)° 3176.9 324746 356214 6 10 1.7 0.42 26 0.40 D ca

(2) 3174.13 324874 356370 4 6 1.7 0.38 16 0.18 D Is 3174.73 324490 355980 2 4 1.4 0.42 8.7 -0.08 D Is 3213.97 324874 355980 4 4 0.27 0.041 1.8 -0.78 D Is

3 2p23p' — 2£)° _ 2JT 3039.3 380265 413158 10 14 2.75 0.53 53 0.73 C ca 2p2

(

1 D)3rf' (3) 3039.25 380243 413136 6 8 2.75 0.51 30.4 0.483 C Is 3039.75 380299 413187 4 6 2.56 0.53 21.3 0.329 c Is 3034.54 380243 413187 6 6 0.184 0.0254 1.52 -0.82 c Is

4

2p° _ 2J) 3150.6 384440 416171 6 10 1.39 0.344 21.4 0.315 c ca

(4) 3154.39 384485 416178 4 6 1.38 0.309 12.9 0.093 c Is 3142.78 384351 416161 2 4 1.16 0.344 7.1 -0.162 c Is 3156.11 384485 416161 4 4 0.230 0.0344 1.43 -0.86 c Is

Forbidden Transitions

Naqvi’s [1] calculations are the only available source. The values should not be quite as

reliable as for other ions of the p

3 configuration (O II, Ne IV) since the important configuration

interaction effects (see general introduction) are neglected.

Reference

[1] Naqvi, A. M., Thesis Harvard (1951).

F III. Forbidden Transitions

No. Transition Multi- mA) fi(cm x ) Ek(cm ’) gi gk Type of Aki( sec x

) S(at.u.) Accu- Source

Array plet Transition racy

1 2p3 — 2p3 4S°_2D0

[2933.1] 0 34084 4 6 m 1.08 x 10"5 6.1 X lO-8 c- 1 [2933.1] 0 34084 4 6 e 1.2 X lO-4 9.3 x lO-5 D- 1 [2930.0] 0 34120 4 4 m 0.00134 4.98 X 10"6 C- 1 [2930.0] 0 34120 4 4 e 7.5 X lO-5 3.8 x 10"5 D- 1

2 4g°_2p°

[1939.6] 0 51558 4 4 m 0.256 2.77 x lO-4 C- 1 [1939.6] 0 51558 4 4 e 2.7 X lO-8 1.8 x 10"9 D- 1 [1939.6] 0 51558 4 2 m 0.102 5.5 x lO-5 C- 1 [1939.6] 0 51558 4 2 e 7.4 X lO-7 2.4 x 10-8 D- 1

3

o QO 1 Cl Q

[27.8 x 103

] 34084 34120 6 4 m 7.55 x 10-7 2.40 B 1 [27.8 x 105

] 34084 34120 6 4 e 1.8 X 10-18 7.2 X lO-4 D- 1

118
Fill. Forbidden Transitions — Continued

No. Transition

Array

Multiplet X(A) £i(cm ’) Ek( cm ') g> gk Type of

Transition /Msec-1

) S(at.u.) Accuracy

Source

4

to 0

o 1 to "Co (IF)

5721.2 34084 51558 6 4 m 0.0280 7.8 x 10-4 c- 1 5721.2 34084 51558 6 4 e 0.15 2.2 D 1 [5721.21 34084 51558 6 2 e 0.088 0.64 D 1 5733.0 34120 51558 4 4 m 0.0494 0.00138 c- 1 5733.0 34120 51558 4 4 e 0.065 0.96 D 1 [5733.0J 34120 51558 4 2 m 0.0309 4.32 X 10-4 c- 1 [5733.0] 34120 51558 4 2 e 0.13 0.96 D 1

Ground State

FlY.

ls2 2s2 2p2 3 P0

Ionization Potential 87.14 eV = 703020 cm- 1

Allowed Transitions

The results of calculations by Bolotin et al. [1] are listed. These authors have employed

relatively simple wave functions and include the important effects of configuration interaction in a crude manner. Thus, their results should be quite uncertain, but they are nevertheless included

since these transitions are expected to be among the strongest for this ion.

Reference

[1] Bolotin, A. B., Levinson, I. B., and Levin, L. I., Soviet Phys. — JETP 2, 391-395 (1956). F IV. Allowed Transitions

No. Transition

Array

Multiplet

mA) fi(cm *) Eic(cm x ) gi gk ^Ai(108 sec

-1

) fk S(at.u.) log gf Accuracy

Source

1 2s22p'2 — 3 p_3D

° 678.18 416 147870 9 15 11 0.13 2.6 0.07 E 1 2s2p:i [679.21] 613 147842 5 7 11 0.11 1.2 -0.27 E Is [677.21] 225 147889 3 5 8.5 0.097 0.65 -0.54 E Is [676.12] 0 147902 1 3 6.3 0.13 0.29 -0.89 E Is [679.00] 613 147889 5 5 2.8 0.020 0.22 -1.01 E Is [677.15] 225 147902 3 3 4.8 0.033 0.22 -1.01 E Is [678.94] 613 147902 5 3 0.30 0.0013 0.014 -2.20 E Is

2 3p _ 3p° 572.00 416 175242 9 9 32 0.16 2.7 0.16 E 1

[572.66] 613 175237 5 5 24 0.12 1.1 -0.23 E Is [571.37] 225 175242 3 3 8.3 0.041 0.23 -0.91 E Is [572.64] 613 175242 5 3 14 0.040 0.38 -0.70 E Is [571.30] 225 175264 3 1 33 0.053 0.30 -0.80 E Is [571.39] 225 175237 3 5 8.3 0.067 0.38 -0.69 E Is [570.64] 0 175242 1 3 11 0.16 0.30 -0.80 E Is

3 3p _3g° 420.38 416 238297 9 3 180 0.16 2.0 0.16 E 1

[420.73] 613 238297 5 3 100 0.16 1.1 -0.10 E Is [420.04] 225 238297 3 3 61 0.16 0.67 -0.31 E Is [419.64] 0 238297 1 3 20 0.16 0.22 -0.80 E Is

4 >D — ‘D0 [491.00] 25241 228908 5 5 86 0.31 2.5 0.19 E 1

5 •D — 'P° [430.76] 25241 257390 5 3 130 0.21 1.5 0.02 E 1

6 ‘S-'P0 [490.57] 53544 257390 1 3 27 0.30 0.48 -0.53 E 1

119
Forbidden Transitions

The adopted values represent the results of calculations by Garstang [1] and Naqvi [2], which

are very similar in character. Garstang’ s evaluation of the quadrupole integral sQ is considered

the more refined one; therefore, the quadrupole fine strengths are taken from his paper. The

results for the magnetic dipole lines agree, except for the 3 P — X S transition. For this line, the

important effects of configuration interaction are more appropriately taken into account by Garstang’s approach of using the experimental term intervals, so that his values are used. (Further

explanations are found in the general introduction.)

References

[1] Garstang, R. H., Monthly Notices Roy. Astron. Soc. Ill, 115-124 (1951).

[2] Naqvi, A. M., Thesis Harvard (1951).

F IV. Forbidden Transitions

No. Transition Multi- MA) £i(cm *) Ek(cm 9 Si gk Type of Aki (sec x

) S(at.u.) Accu- Source

Array plet Transition racy

1 2p2 — 2p2 3p 3p

[44.39 x 10*] 0.0 225.2 1 3 m 2.05 2.00 B 1,2

[16.30 x 104

] 0.0 613.4 1 5 e 5.0 X 10- 10 0.171 C 1 [25.75 X 104

] 225.2 613.4 3 5 m 7.89 X 10-4 2.50 B 1,2

[25.75 X 104

] 225.2 613.4 3 5 e 1.20 xlO" 10 0.405 C 1

2 aP-T)

(1 F) [3960.7] 0.0 25241 1 5 e 6.4 x 10~6 1.9 x 10-5 D 1 3996.3 225.2 25241 3 5 m 0.0342 4.05 x 10-4 C 1,2

3996.3 225.2 25241 3 5 e 2.1 x 10~5 6.4 x 10-5 D 1 4059.3 613.4 25241 5 5 m 0.098 0.00122 C 1,2

4059.3 613.4 25241 5 5 e 1.3 x 10-4 4.3 X 10-5 D 1

3 3p_l S

[1875.5] 225.2 53544 3 1 m 1.10 2.69 X 10-4 C 1 [1889.3] 613.4 53544 5 1 e 0.0023 3.3 x 10-5 D 1

4 'D-'S

(2 F)

L 3532.2 25241 53544 5 1 e 2.10 0.69 C 1

Ground State

FV.

’ls

2 2s2 2p 2P°/2

Ionization Potential 114.214 eV = 921450 cm”1

Allowed Transitions

The two available sources are quantum mechanical calculations by Bolotin and Yutsis [1]

and Naqvi and Victor [2]. The important transitions covered by Bolotin and Yutsis are very sensitive to the effects of configuration interaction, which are only approximately included in their

calculations. For the result of Naqvi and Victor, obtained from the charge expansion method, an accuracy within 25 “percent is indicated from comparisons of this work with other material for

equivalent transitions within this isoelectronic sequence.

120
References

[1] Bolotin, A. B., and Yutsis, A. P., Zhur. Eksptl. i Teoret. Fiz. 24, 537—543 (1953) (Translated in “Optical Transition

Probabilities,” Office of Technical Services, U.S. Department of Commerce, Washington, D.C.).

[2] Naqvi, A. M., and Victor, G. A., Technical Documentary Report No. RTD TDR-63—3118 (1964).

F v. Allowed Transitions

No. Transition

Array

Multiplet

X(A) A

1

, (cm *) Ek(cm ! ) Si gk Akl (108 sec

-1

)

fik S(at.u.) log gf Accuracy

Source

1 2s22p — 2 P°- 2 D 656.22 497 152885 6 10 12 0.13 1.7 -0.10 E 1 2s2p2

[657.33] 746 152876 4 6 12 0.12 1.0 -0.34 E Is [654.03] 0 152898 2 4 10 0.13 0.57 - 0.58 E Is [657.24] 746 152898 4 4 2.0 0.013 0.11 -1.29 E Is

2

2 po 2g 507.44 497 197565 6 2 67 0.086 0.86 -0.29 E 1

[508.08] 746 197565 4 2 44 0.085 0.57 -0.47 E Is [506.16] 0 197565 2 2 23 0.087 0.29 -0.76 E Is

3

2p° 2p 465.78 497 215192 6 6 100 0.33 3.0 0.29 E 1

[465.98] 746 215348 4 4 85 0.28 1.7 0.04 E Is [465.37] 0 214881 2 2 67 0.22 0.67 -0.36 E Js

[467.001 746 214881 4 2 33 0.054 0.33 -0.67 E Is [464.36] 0 215348 2 4 17 0.11 0.33 -0.67 E Is

4 3s -(^Sp 2g 2p° 2454.2 524751 565485 2 6 2.24 0.61 9.8 0.084 C 2

[2450.7] 524751 565544 2 4 2.24 0.403 6.5 - 0.094 C Is [2461.31 524751 565367 2 2 2.22 0.202 3.27 -0.394 c Is

Forbidden Transitions

Naqvi’s calculation [1] of the one possible transition in the ground state configuration 2p is the only available source. The line strength should be quite accurate, since it does not sensitively depend on the choice of the interaction parameters.

Reference

[1] Naqvi, A. M„ Thesis Harvard (1951).

F V. Forbidden Transitions

No. Transition Multiplet x(A) Ei( cm *) Ek{ cm ') Si Sk Type of Aki(sec ') S(at. u.) Accu- Source

Array Transition racy

1 2p — 2p

2p° 2p°

13.40 x 104 0 746 2 4 m 0.00373 1.33 B 1

121
F VI.

Ground State ls2 2s2

Ionization Potential 157.117 eV= 1267581 cm-1

Allowed Transitions

The results of the charge expansion calculations by Naqvi and Victor [1] are utilized whenever

comparison of this work with other data in the isoelectronic sequence indicates a fair reliability

of this material. Values for the 2s2p — 2p2 transition array are available from the self-consistent

field calculations by Weiss [2]. These calculations do not include the important effects of configuration interaction; hence, fairly large uncertainties must be expected. The average of the

dipole length and velocity approximations [2] is adopted and accuracies within 50 percent are indicated from comparisons possible for the first member of this isoelectronic sequence.

References

[1] Naqvi, A. M., and Victor, G. A., Technical Documentary Report No. RTD TDR-63-3118 (1964).

[2] Weiss, A. W., private communication (1964).

Fvi. Allowed Transitions

No. Transition

Array

Multiplet MA) Ei( cm ! ) Eidcm ! ) gi gk /Mio8 see

-1

)

fik S(at.u.) log gf AccuracySource

1 2s2 -2s(2S)2p is-ip0 [535.21] 0 186841 1 3 48 0.62 1.1 -0.20 E 1

2 2s2 -2s(2 S)3p 1 S — ip0 [126.93] 0 787833 1 3 660 0.48 0.20 -0.32 E 1

3 2s2p — 2p2 w U

O 1CO Tl 646.27 97152 251886 9 9 25 0.16 3.0 0.15 D 2

[646.38] 97437 252145 5 5 18 0.11 1.2 -0.25 D Is [646.10] 96861 251635 3 3 6.3 0.039 0.25 -0.93 D Is [648.52] 97437 251635 5 3 10 0.039 0.42 -0.71 D Is [647.33] 96861 251341 3 1 25 0.052 0.33 -0.81 D Is [643.98] 96861 252145 3 5 6.4 0.066 0.42 -0.70 D Is [645.02] 96601 251635 1 3 8.3 0.16 0.33 -0.81 D Is

4

o 6 [1139.5] 186841 274597 3 5 8.2 0.27 3.0 -0.10 D 2

5

o 1 c7i [651.11] 186841 340424 3 1 26 0.054 0.35 -0.79 D 2

6 2s3s-2s(2 S)3p i S _ i p° [4264.8] 764392 787833 1 3 0.326 0.267 3.75 -0.57 C 1

Forbidden Transitions

Naqvi’s calculations [1] are the only available source. The results for the 3 P° — 3 P° transitions are essentially independent of the choice of the interaction parameters. For the 3 P° — 1 P° transitions, Naqvi uses empirical term intervals, i.e., the effects of configuration interaction should

be partially included.

fl] Naqvi, A. M., Thesis Harvard (1951). Reference

122
F vi . Forbidden Transitions

No. Transition Multiplet x(A) E>(cm- 1 ) Ek( cm ') gi gk Type of /Msec ') Slat, u.) Accu- Source

Array Transition racy

1 2s2p —

2s(2 S)2p

CO T>o 1 CO T3o [38.5 X 104

] 96601 96861 1 3 m 3.16 X ]()- 4 2.00 B 1

1 [17.36 x 10*J 96861 97437 3 5 m 0.00258 2.50 B

2 3p° ip°

[1108.2] 96601 186841 1 3 m 0.268 4.05 X 10-5 C 1 [1111.4] 96861 186841 3 3 m 44.2. 0.0068 C 1 [1118.5] 97437 186841 5 3 m 0.324 5.1 x 10~5 c 1

F VII.

Ground State 1s225 2 S,/2

Ionization Potential 185.139 eV= 1493656 cm” 1

Allowed Transitions

List of tabulated lines:

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

86.732 3 127.81 5 890.762 1 97.262 6 134.71 4

97.354 6 134.88 4 3246.6 7 112.94 2 3276.6 7 112.98 2 335.17 8 7958.9 11 391.73 10 9524.8 9

127.65 5 392.16 10 9702.3 9

127.80 5 883.097 1 9787.8 9

For F VII, an ion of the Lithium sequence, theoretical data from the self-consistent field calculations by Weiss [1] and the variational calculations by Flannery and Stewart [2], both done in the

dipole length and velocity approximations, as well as an experimental result from the lifetime

measurement of Berkner et al. [3], are available. The agreement for the 2s — 2p transition, which

is covered by all three methods, is within an impressive 10 percent. Errors smaller than 25 percent

are estimated from the close agreement between the dipole length and velocity approximations.

The dipole length values are chosen.

References

[1] Weiss, A. W., Astrophys. J. 138, 1262-1276 (1963).

[2] Flannery, M. R., and Stewart, A. L., Monthly Notices Roy. Astron. Soc. 126, 387-392 (1963).

[3] Berkner, K. H., Cooper, W. L., Kaplan, S. N., and Pyle, R. V., Phys. Letters 16, 35 (1965).

123
F vii. Allowed Transitions

No. Transition

Array

Multiplet

x(A) Ei( cm J ) Ek(cm *) gi A-i(108 sec *) U S(at.u.) log gf Accuracy

Source

1 2s -2p 2 S- 2 P 885.64 0 112913 2 6 4.77 0.168 0.981 -0.473 B 1, 2, 3

883.097 0 113238 2 4 4.81 0.112 0.654 - 0.648 B Is 890.762 0 112263 2 2 4.69 0.0558 0.327 - 0.953 B Is

2 2s — 3/? 2 S — 2 P° 112.95 0 885324 2 6 499 0.286 0.213 - 0.242 B + 1,2

[112.94] 0 885418 2 4 499 0.191 0.142 -0.418 B + Is [112.98] 0 885136 2 2 499 0.0954 0.0710 -0.719 B + Is

3 25-4/? 2§_2p° [86.7321 0 1152977 2 6 214 0.0725 0.0414 - 0.839 C + 2

4 2p — 3s 2po 2g 134.82 112913 854625 6 2 264 0.0240 0.0638 - 0.842 C + 1,2

[134.88] 113238 854625 4 2 175 0.0239 0.0425 -1.019 c + Is [134.71] 112263 854625 2 2 88.3 0.0240 0.0213 -1.319 c + Is

5 2p — 3d 2p°_2J) 127.75 112913 895686 6 10 1630 0.666 1.68 0.602 B 1

[127.80] 113238 895722 4 6 1630 0.600 1.01 0.380 B Is [127.65] 112263 895632 2 4 1360 0.666 0.560 0.125 B Is [127.81] 113238 895632 4 4 272 0.0665 0.112 - 0.575 B Is

6 2p — 4s 2p°_2g 97.323 112913 1140416 6 2 99 0.00468 0.0090 -1.55 C 2

[97.354] 113238 1140416 4 2 66 0.00468 0.0060 -1.73 C Is [97.262] 112263 1140416 2 2 33.0 0.00468 0.00300 -2.028 C Is

7 3s-3p 2 S- 2 P 3256.5 854625 885324 2 6 0.604 0.288 6.18 -0.239 B + 1,2

[3246.6] 854625 885418 2 4 0.610 0.193 4.12 -0.414 B + Is [3276.6] 854625 885136 2 2 0.593 0.0955 2.06 -0.719 B + Is

8 35-4/? 2 S- 2 P [335.17] 854625 1152977 2 6 63.7 0.322 0.710 -0.192 B 2

9 3p-3d 2p° _ 2£) 9648.0 885324 895686 6 10 0.0186 0.0432 8.23 -0.587 B 1

[9702.3] 885418 895722 4 6 0.0183 0.0387 4.94 -0.811 B Is [9524.8] 885136 895632 2 4 0.0161 0.0437 2.74 -1.059 B Is [9787.8] 885418 895632 4 4 0.00297 0.00426 0.549 -1.769 B Is

10 3/?-45 2p°_2g 392.02 885324 1140416 6 2 58.3 0.0448 0.347 -0.571 B 2

[392.16] 885418 1140416 4 2 38.8 0.0447 0.231 -0.747 B Is [391.73] 885136 1140416 2 2 19.5 0.0450 0.116 -1.046 B Is

11 4s — 4/? 2g 2p° [7958.9] 1140416 1152977 2 6 0.140 0.399 20.9 - 0.098 B 2

124
Ground State

F VIII.

Is2 ‘S„

Ionization Potential 953.60 eV = 7693400 cm" 1

Allowed Transitions

The results of extensive non-relativistic variational calculations by Weiss [1] are used. Values

have been calculated in both the dipole length and dipole velocity approximations and agree to within 1 percent, except for the 3p 'P° — 3d'D transition where agreement is not as good. The

average of the two approximations is adopted [1].

Reference

[1] Weiss, A. W., private communication (1964).

Fviii. Allowed Transitions

No. Transition

Array

Multiplet mA) £’;(cm *) £*(cm *) g- gk Aki( 108 sec- 1 ) fik S(at.u.) log gf Accuracy

Source

1 ls2 -

ls2p

i S _ip° [16.807] 0 5949900 1 3 5.59 x 104 0.710 0.0393 -0.149 A 1

2 ls2 -

ls3p

1 S- 1 P° [14.458] 0 6916590 1 3 1.57 X 104 0.148 0.00704 -0.830 A 1

3 ls2sls2p

l S _ipo [2149.9] [5903400] 5949900 1 3 0.288 0.0599 0.424 -1.223 A 1

4 ls2s —

ls3p

ts_ip° [98.698] [5903400] 6916590 1 3 867 0.380 0.123 - 0.420 A 1

5 ls2p —

ls3d

1 P°- ) D [103.80] 5949900 [6913300] 3 5 2610 0.703 0.721 0.324 A 1

6 ls3dls3p

*D — 1 P° [30390]? [6913300] 6916590 5 3 8.52 x 10-4 0.00708 3.54 -1.451 C + 1

7 1s25 —

ls2p

3§ _3p° [1422.9] [5829640] [5899920] 3 9 0.915 0.0833 1.17 - 0.602 A 1

8 ls2s —

ls3p

35 _3p° [93.213] [5829640] [6902450] 3 9 914 0.35? 0.329 0.030 A 1

9 ls2p —

ls3d

3p°_3J) [98.756] [5899920] 6912520 9 15 2750 0.669 1.96 0.780 A 1

10 ls3p —

ls3d

3p°_3J) [9927.8] [6902450] 6912520 9 15 0.0133 0.0327 9.62 -0.531 A 1

125
NEON

Ground State

Nel.

ls22s22p6 iSo

Ionization Potential 21.559 eV= 173932 cm'1

Allowed Transitions

List of tabulated lines:

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

735.89 2 6717.04 6 23709 14

743.70 1 6929.47 6 23956 16

3454.19 7 7032.41 3 24249 16

3472.57 7 7173.94 6 24339 13

3520.47 8 7245.17 '4 24365 14

5852.49 6 7438.90 5 25524 13

5881.90 3 7488.87 9 25855 16

5944.83 3 8377.61 10 26861 14

5975.53 3 8495.36 11 27521 15

6030.00 4 8654.38 12 28533 16

6074.34 4 18210 14 28744 16

6096.16 4 19577 13 29714 16

6128.45 4 19772 13 31860 15

6143.06 3 20350 14 33511 16

6163.59 5 20354 14

6217.28 3 20565 14

6266.50 5 21041 16

6304.79 4 21708 14

6334.43 3 22530" 13

6382.99 4 22662 13

6402.25 3 23100 15

6506.53 4 23260 13

6532.88 5 23373 15

6598.95 6 23565 14

6678.28 6 23636 13

In the vacuum uv region data are available for the two transitions of the 2p — 3s array. They

have been obtained experimentally from lifetime measurements by Schiitz [1], Phelps [2], Korolev

et al. [3], and theoretically from SCF calculations including exchange effects by Gold and Knox [4]. In the experiments only one of the two lines is obtained directly whereas the other one is derived

using Shortley’s [5] calculated intensity ratio. Since the total spread between the results is within

a factor of two, uncertainties within 25 percent (class C) are estimated for the averaged values.

,

Extensive experimental work [6, 7] has been done on the lines of the prominent 3s — 3p transition array. Ladenburg and Levy, and Pery-Thorne and Chamberlain have used the method of

anomalous dispersion; Doherty and Friedrichs measured absolute emission intensities, the former

with a conventional shock tube, the latter with a stabilized arc; with a discharge tube Garbuny

determined relative intensities in emission and Krebs in absorption. Relative /-values have been

obtained from the following procedure: the results of the three emission experiments (by Garbuny,

Doherty, and Friedrichs) have been employed to obtain the line strengths within the groups of lines

with the same upper but different lower levels, since for these cases errors are obviously minimized.
Analogously, the absorption measurements of Krebs and the anomalous dispersion measurements

of Ladenburg and Levy, and Pery-Thorne and Chamberlain have supplied the most accurate

relative /-values for lines starting with the same lower level hut ending in different upper levels.

The averaged emission and absorption data have then been combined in a least squares fit procedure to obtain a best set of relative data. It turns out that this set fits most of the original data

and the 7-file sum rule within 10 percent, hut a few deviations of 30 percent are encountered.

Absolute values have been obtained by employing the results of recent extensive lifetime

measurements of the 3p levels undertaken by Klose [7] with a delayed coincidence technique.

An averaged conversion factor has been obtained from fitting the levels pi, P2 , Ps, Pe, Pt, Ph, and p<j which were measured by Klose with a high degree of precision. The averaged conversion factor

has a standard deviation of only 6 percent. Accuracies within 10 percent for most absolute /-values

are indicated (a) from the high experimental precision obtained by Klose which is usually within

4 percent, (b) from the good consistency of the data with the 7-file sum rule, (c) from the excellent

agreement of the total fine strength for this transition array, which is 224, with a value of 230

obtained from the Coulomb approximation, and (d) from the very good agreement of Klose’s life- time results with some preliminary lifetime data by Bennett et al. [8]. For a few fines of the 3s — 4p array, Klose’s lifetime data for 4p levels could be utilized to derive

transition probabilities. However, these cannot be considered as accurate as before because the

contribution of the respective 4s — 4p transition to the lifetimes could be only approximately taken

into account using the data discussed immediately below.

The Coulomb approximation has been applied for obtaining an absolute scale for the 4s — 4p

array. For the breakdown into individual fines the intermediate coupling calculations of Ufford

[10] are available. The latter are estimated to be not too reliable, since similar calculations by Shortley [5] for the 3s — 3p array, as judged from the many experimental comparisons, have had only a

fair degree of success. From Doherty’s [9] shock tube experiment some further material is available for the 3p — 3d

array. His absolute values have been renormalized by using the same conversion factor as that

for his values of the 3s — 3p array.

References

[1] Schiitz, W„ Ann. Physik 18, 705-720 (1933).

[2] Phelps, A. V., Phys. Rev. 100, 1230 (1955).

[3] Korolev, F. A., Odintsov, V. I., and Fursova, E. V., Optics and Spectroscopy (U.S.S.R.) 16, 304-305 (1964).

[4] Gold, A. and Knox, R. S., Phys. Rev. 113, 834-839 (1959).

[5] Shortley, G. H., Phys. Rev. 47, 295—300 (1935).

[6] Krebs, K., Z. Physik 101, 604-642 (1936). Ladenburg, R. and Levy, S., Z. Physik 88, 461-468 (1934). Pery-Thorne, A. and Chamberlain, J. E., Proc. Phys. Soc. London A 82, 133-141 (1963). Doherty, L. R., Thesis Michigan (1961). Garbuny, M„ Z. Physik 107, 362-368 (1937). Friedrichs, H., Z. Astrophys. 60, 176-183 (1964).

[7] Klose, J. Z., Phys. Rev. 141, 181-186 (1966).

[8] Bennett, Jr., W. R., Kindlmann. P. J., and Mercer, G. N., Applied Optics Supplement 2 of Chemical Lasers, 34-57

(1965).

[9] Doherty, L. R., Thesis Michigan (1961).

[10]

Ufford, C. W„ Astrophys, J. 85, 249-250 (1937).

127

766-655 0-66—10
Nel. Allowed Transitions

No. Transition Transition MA) Ek(cm x) gi gk ^fci ( 108 fik S(at.u.) log gf Accu- Source

Array sec

-1

) racy

1 2p

6 — 1 S -[1V2]° 743.70 0 134461 1 3 0.476 0.0118 0.0290 -1.93 C 1 , 2 , 3, 4,

5

2pH2V°/2)3s (1 UV)

2 2p6 — *5 — [V2 ]° 735.89 0 135891 1 3 6.64 0.162 0.392 -0.79 C 1,2, 3, 4, 5 2p5

( 2Pi )3s' (2 uv)

3 2p53s — [iv2]°— [ y2] 7032.41 134044 148260 5 3 0.192 0.0854 9.89 -0.370 B- 6n. 7 2p5

( 2 P°v2 )3p

( 1 ) [1 V2

]° — [2V2] 6402.25 134044 149659 5 7 0.433 0.373 39.3 0.270 B 6n, 7

[ 1 V2

]° — [ 1 V2] 6334.43 134044 149826 5 5 0.136 0.0818 8.53 - 0.388 B- 6n, 7 [IV2

]° — [ 1 V2] 6217.28 134044 150124 5 3 0.0777 0.0270 2.76 - 0.869 B- 6n, 7

[ 1 V2]

0

[ y2] 6143.06 134044 150318 5 5 0.216 0.122 12.4 -0.214 B- 6n, 7

2p5

( 2 P°v2 )3s — [iv2]°— [IV2] 5975.53 134044 150774 5 3 0.0433 0.0139 1.37 -1.158 B- 6n. 7 2p5

( 2 P

°

2 )3p' [1 v2

]° — [1 v2] 5944.83 134044 150860 5 5 0.105 0.0556 5.44 -0.556 C + 6n. 7

( 1 ) [lV2]°-[ V2] 5881.90 134044 151040 5 3 0.128 0.0398 3.86 -0.701 B- 6n, 7

4 2p53s — [iv2]°— [ y2] 7245.17 134461 148260 3 3 0.0977 0.0769 5.50 -0.637 B- 6n, 7 2p5

( 2 P1°

1/2 )3p

(3) [ 1 v2

]° — [2 y2] 6506.53 134461 149826 3 5 0.232 0.245 15.8 -0.133 B- 6n, 7 [1V2]° — [IV2] 6382.99 134461 150124 3 3 0.279 0.170 10.7 -0.291 B- 6n, 7 [IV2]

0 — [ 1 V2] 6304.79 134461 150318 3 5 0.0507 0.0504 3.14 -0.821 B- 6n. 7

[ 1 V2 ] 0 — [ V2] 6074.34 134461 150919 3 1 0.617 0.114 6.83 -0.467 C + 6n, 7 2p5

( 2 Pi°v2 )3s — [1 V2

]° — [ 1 V2] 6128.45 134461 150774 3 3 0.0327 0.0184 1.11 -1.258 B- 6n, 7 2p5

( 2 R

°

2 )3p' [1 V2]

0 — [ 1 V2 ] 6096.16 134461 150860 3 5 0.169 0.157 9.45 -0.327 C + 6n, 7

(3) [ 1 V2]

0 — [ V2 J 6030.00 134461 151040 3 3 0.0627 0.0342 2.04 -0.989 B- 6n, 7

5 2p5

( 2 P?/2 )3s' - [ V2]°-[ V2] 7438.90 134821 148260 1 3 0.0292 0.0727 1.78 -1.139 B- 6n, 7 2p5

( 2 F5°

/a )3p

(5)

[ V2]°-[1V2] 6532.88 134821 150124 1 3 0.128 0.246 5.28 -0.610 B- 6n, 7

2p53s' — [ V2

]° — [ 1 V2 ] 6266.50 134821 150774 1 3 0.223 0.394 8.13 - 0.405 B- 6n, 7 2p5

( 2 P

°

2 )3p'

(5)

[ v2r-[ y2] 6163.59 134821 151040 1 3 0.160 0.273 5.55 - 0.563 B- 6/1 , 7

6 2p5

( 2 Py2_ )3s' — [ V2]0 —

[

2V2] 7173.94 135891 149826 3 5 0.0365 0.0469 3.33 -0.851 B- 6n, 1 2p5

( 2 Pjy )3p

( 6) 2p53s' —

[ V2]°-[1V2] 6929.47 135891 150318 3 5 0.190 0.228 15.6 -0.165 B- 6n, 7

[ V2] 0 —

[

1 V2] 6717.04 135891 150774 3 3 0.234 0.158 10.5 - 0.323 B- 6n, 7 2p5

( 2 P

°

2 )3p' [ V2

]° — [ 1 V2 ] 6678.28 135891 150860 3 5 0.238 0.265 17.5 - 0.099 C + 6n, 7

(6) [ V2]

0

[ V2] 6598.95 135891 151040 3 3 0.251 0.164 10.7 -0.308 B- 6n, 7

[ v2] o -[ V2] 5852.49 135891 152973 3 1 0.719 0.123 7.11 -0.433 B 6/i, 7

7 2p53s — [ 1

V

2]0 — [2 V2] 3472.57 134044 162833 5 7 0.099 0.0251 1.44 -0.90 C 7 2p5

( 2 Pj

°

/2 )4p

( 2) 2p53s' —

O__ e>/2|~>o \/t r

[1V2]°— [ V2 ] 3454.19 134461 163403 3 1 0.085 0.0051 0.173 -1.82 C 7

8 [ v2]° [ y2] 3520.47 135891 164288 3 1 0.073 0.00449 0.156 -1.87 C 7

(7)

128
Nel. Allowed Transitions —Continued

No. Transition

Array

Transition x(A) £i(cm *) Ek ( cm ’) gt gk Au( 108 sec

-1

)

fik S(at.u.) log gf Accuracy

Source

9 2p53p — r y2]-[iy*r 7488.87 148260 161609 3 5 0.349 0.489 36.2 0.166 C 9n

2//'(T° 2 )3d

10 [2V2]— [3V2]° 8377.61 149659 161592 7 9 0.51 0.69 134 0.69 c ()n

(12)

11 [2V2 ] — [3V2 f 8495.36 149826 161594 5 7 0.357 0.54 76 0.432 c 9n

(18)

12 2p53p' — [i v2 ] — [2V2 ]° 8654.38 150860 162412 5 7 0.445 0.70 100 0.54 c 9n 2p5

( 2P°/a )3rf' (33)

13 2p54s — [ i v2 ]°

[ y2] [25524] 158603 162520 5 3 0.012 0.073 31 -0.44 D lOn, ca 2p5

( 2 P°/2 )4p [ i y2

]° — [2 v2] [23636] 158603 162833 5 7 0.057 0.67 260 0.52 D + lOn, ca

[1V2

]° — [2V2 ] [23260] 158603 162901 5 5 0.0025 0.020 7.8 -0.99 D lOn, ca

[iv2]°— [iy2] [22662| 158603 163015 5 3 0.0058 0.027 10 -0.87 D lOn. ca [iy2]°-[iy2] [22530] 158603 163040 5 5 0.037 0.28 100 0.15 D lOn, ca

2p5

( 2

Pi°i/2 )4s — [iy2]°-[iy2] [19772] 158603 163659 5 3 0.0052 0.018 5.9 -1.04 D lOn. ca 2p5

( 2 P?/2 )4p' [iy2]°— [iy2 ] [24339] 158603 163711 5 5 0.021 0.18 73 -0.04 D lOn, ca

[iy2]°-[ y2] [19577] 158603 163710 5 3 0.058 0.20 64 -0.00 D lOn, ca

14 2p54s

[iy2]°-t y2] [26861] 158798 162520 3 3 0.015 0.16 43 -0.31 D lOn. ca 2p5

( 2P1

°,/2 )4p [i v2

]° — [2 y2] [24365] 158798 162901 3 5 0.0015 0.022 5.2 -1.19 D lOn, ca

[1V2

]° — [1V2] [23709] 158798 163015 3 3 0.0019 0.016 3.1 -1.32 D lOn. ca [iy2]°-[iy2] [23565] 158798 163040 3 5 0.021 0.29 68 -0.06 D lOn. ca

[iv2]°-[ y2] [21708] 158798 163403 3 1 0.068 0.16 34 -0.32 D + lOrc. ca 2p5

( 2 P°v2 )4s - [iy2]°-[iy2] [20565] 158798 163659 3 3 0.026 0.16 33 -0.31 D lOn, ca 2p5

( 2 Py2 )4p' [iy2]°-[iy2] [20350] 158798 163711 3 5 0.054 0.56 110 0.22 D lOn, ca

[iv2]°— [ y2] [203541 158798 163710 3 3 0.025 0.15 31 -0.34 D lOn, ca

[iv2]°-[ y2] [18210] 158798 164289 3 1 0.0087 0.014 2.6 -1.36 D 10n, ca

15 2p5

(2 P° 2 )4s' - [ v2]°-[ y2] [31860] 159382 162520 1 3 0.0054 0.25 26 -0.61 D lOrc. ca 2p5

( 2 P1°

V2 )4p [ v2]°— [iv2] [27521] 159382 163015 1 3 0.0075 0.26 23 -0.59 D lOn, ca

2p54s' — [ V2]°-[1V2 ] [23373] 159382 163659 1 3 0.027 0.67 52 -0.17 D lOn, ca 2p5

( 2 Py2 )4p' [ v2]°-[ ya] [23100] 159382 163710 1 3 0.0055 0.13 10 -0.88 D 10n, ca

16 2p5

(2 P°2 )4s' — [ v2 ]°-[ y2] [33511] 159537 162520 3 3 0.0020 0.034 11 -0.99 D lOn, ca 2p5

(2 P]°1/j)4p [ y2

]° — [2 v2] [29714] 159537 162901 3 5 0.027 0.59 170 0.25 D lOn, ca

[ y2]°-[iy2] [28744] 159537 163015 3 3 0.021 0.26 74 -0.11 D lOn, ca

[ y2]°-[iy2] [28533] 159537 163040 3 5 0.0023 0.046 13 -0.86 D lOn, ca

l v2]°-[ ya] [25855] 159537 163403 3 1 0.0030 0.010 2.6 -1.52 D lOn, ca

2p54s' — [ V2]°-[1V2] [24249] 159537 163659 3 3 0.0095 0.084 20 -0.60 D lOn. ca 2p5

( 2 P°

2 )4p' i y2r-[ y2] [23956] 159537 163710 3 3 0.0029 0.025 5.9 -1.12 D lOn, ca

[ v2]°-[ y2] [21041] 159537 164288 3 1 0.075 0.17 34 -0.30 D + lOn. ca

129
Ne II

Ground State ls22s22p5 2 Pg/2

Ionization Potential 41.07 eV = 331350 cm'1

Allowed Transitions

List of tabulated lines:

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

460.725 1 3166.2 4 3357.90 24

462.338 1 3169.30 28 3360.63 3

2846.4 23 3173.58 25 3362.89 24

2853.5 7 3176.16 28 3367.05 24

2858.0 22 3187.60 4 3367.20 31

2870.0 19 3188.74 26 3371.87 34

2873.0 22 3190.86 25 3374.10 24

2876.4 22 3194.61 28 3378.28 13

2876.5 19 3198.62 25 3379.39 24

3198.88 25 3386.24 24

2878.1 23 3208.3 27 3388.46 31

2888.4 19 3208.99 26 3390.56 24

2889.0 20 3209.38 28 3392.7 34

2891.5 22 3213.70 25 3392.78 13

2895.0 19 3214.38 26 3393.2 33

2896.3 7 3217.4 28 3397.5 31

2897.1 19 3218.21 25 3414.82 32

2906.8 22 3220.0 27 3416.87 33

2907.7 20 3230.16 16 3417.71 32

2910.4 19 3230.5 16 3453.10 33

2916.2 21 3231.97 16 3456.68 40

2925.7 22 3232.3 28 3463.1 12

2933.7 21 3232.38 16 3475.25 46

2934.3 20 3243.34 27 3477.69 33

2935.3 21 3244.15 26 3479.5 17

2951.1 21 3248.15 27 3480.8 17

2953.0 21 3255.39 35 3481.96 11 2955.7 6 3263.43 27 3503.61 40

3001.65 6 3269.86 27 3522.72 46

3015.7 5 3270.79 3 3538.3 12

3017.34 18 3297.74 3 3542.90 45

3027.04 18 3309.78 13 3544.2 30

3028.7 18 3310.55 35 3546.22 39

3028.84 6 3311.30 3 3551.2 - 37

3034.48 18 3314.60 34 3554.39 30

3037.73 18 3319.75 15 3557.84 11 3045.58 18 3320.29 24 3561.23 42

3047.57 18 3323.75 13 3565.84 45

3054.69 18 3327.16 3 3568.53 14

3097.5 29 3329.20 24 3571.26 42

3118.02 28 3330.78 31 3574.23 14

3132.22 25 3334.8 34 3574.3 39

3135.8 29 3334.87 3 3574.64 14

3135.82 4 3344.43 3 3590.47 43

3136.5 4 3345.49 15 3594.18 45

3151.16 28 3345.88 24 3612.35 38

3154.82 26 3345.88 15 3628.06 51

3160.0 29 3353.36 35 3632.75 44

3164.46 25 3355.05 3 3643.89 10

3165.70 25 3356.35 32 3644.86 51

130
Allowed Transitions — Continued

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

3659.93 44 3790.96 41 4290.40 54

3664.09 2 3800.02 49 4323.3 53

3679.80 51 3806.30 41 4346.9 54

3694.22 2 3818.44 49 4365.72 54

3697.09 51 3829.77 49 4369.77 53

3701.81 50 3903.9 9 4379.50 53

3709.64 2 3942.3 9 4385.00 53

3713.09 10 3999.5 9 4391.94 54

3721.86 47 4217.15 52 4397.94 53

3726.9 50 4219.76 52 4409.30 54

3727.08 10 4220.92 52 4413.20 54

3732.7 47 4224.75 52 4428.54 54

3734.94 2 4231.60 52 4430.90 53

3744.66 50 4234.3 52 4441.1 8

3751.26 2 4239.95 52 4442.67 53

3753.83 48 4242.20 52 4446.46 53

3754.9 36 4249.2 54 4492.4 54

3766.29 2 4250.68 52 4502.52 53

3776.9 41 4257.82 52

3777.16 2 4280.3 53

Aside from the multiplet 2s2 2p5 2 P° — 2s2p6 2 S in the vacuum uv for which a quantum mechanical calculation (screening approximation) has .been carried out by Varsavsky [1], the main source

of theoretical information on the spectrum are the extensive calculations by Garstang [2] for lines

of the 3s — 3p and 3p — 3d arrays. He has calculated the relative line strengths under the assumption of intermediate coupling and has used the Coulomb approximation to obtain the transition

integrals for the absolute values. However, for the 3s — 3p array Koopman’s [3] relative line

strengths obtained from intensity measurements with an electrically driven shock tube agree with

LS-coupling better than with the intermediate coupling values. Therefore, Koopman’s relative

values are averaged with LS-coupling results and put on an absolute scale by using the Coulomb

approximation. On the other hand, comparison with the very incomplete experimental intensity

data [3] for the 3p — 3d array indicates that intermediate coupling fits much better here than LScoupling and gives in may cases drastic improvements. Thus Garstang’s results are exclusively

used for this array as well as for all intercombination fines. Some fines marked D- should be

considered inferior in quality to the rest, since Garstang finds them very sensitive to the choice

of parameters.

In addition, the /-values for the three strongest multiplets of the 3d—^f array have been cal- culated with the Coulomb approximation using LS-coupling for the multiplet components.

References

[1] Varsavsky, C. M., Astrophys. J. Suppl. Ser. 6, No. 53, 75-108 (1961).

[2] Garstang, R. H., Monthly Notices Roy. Astron. Soc. 114, 118-133 (1954).

[3] Koopman, D. W„ J. Opt. Soc. Am. 54, 1354-1358 (1964).

131
Nell. Allowed Transitions

No. Transition Multi- x(A) £i(cm x ) Ek-( cm x

) gi gk ^Mio8 f* S(at.u.) log gf Accu- Source

Array plet sec

-1

) racy

1 2s22p5 — 2p°_2g 461.28 260.07 217050 6 2 310 0.33 3.0 0.29 E 1 2s 2p

6 (1 UV)

460.725 0.00 217050 4 2 210 0.33 2.0 0.12 E Is 462.388 782 217050 2 2 100 0.33 1.0 -0.18 E Is

2 2p43s — 4p _ 4p° 3717.2' 219442 246337 12 12 1.3 0.27 39 0.50 D ca 2p4

( 3 P)3p (1) 3694.22 219133 246195 6 6 0.96 0.20 14 0.07 D 3, Is 3734.94 219651 246417 4 4 0.20 0.041 2.0 -0.78 D 3, Is 3751.26 219950 246600 2 2 0.19 0.039 0.98 -1.10 D 3, Is 3664.09 219133 246417 6 4 0.67 0.090 6.6 -0.27 D 3, is 3709.64 219651 246600 4 2 1.1 0.11 5.6 -0.34 D 3, Is 3766.29 219651 246195 4 6 0.32 0.10 5.0 -0.39 D 3, Is 3777.16 219950 246417 2 4 0.43 0.18 4.6 -0.43 D 3, Is

3

13 1 O

o 3336.8 219442 249402 12 20 1.8 0.51 67 0.79 D ca

(2) 3334.87 219133 249111 6 8 1.8 0.41 27 0.39 D 3, Is 3355.05 219651 249448 4 6 1.3 0.33 15 0.13 D 3, Is 3360.63 219950 249698 2 4 0.73 0.25 5.5 -0.30 D 3, Is 3297.74 219133 249448 6 6 0.53 0.087 5.7 -0.28 D 3, Is 3327.16 219651 249618 4 4 0.98 0.17 7.0 -0.17 D 3, Is 3344.43 219950 249842 2 2 1.5 0.25 5.6 -0.30 D 3, Is 3270.79 219133 249698 6 4 0.12 0.013 0.85 -1.11 D 3, Is 3311.30 219651 249842 4 2 0.30 0.023 1.0 -1.04 D 3, Is

4 4p _ 2P°

(3) 3135.82 219133 251013 6 6 0.0065 9.6 x lO-4 0.059 -2.24 D 2

[3136.5] 219651 251525 4 4 0.0049 7.2 X lO-4 0.030 -2.54 D 2

3187.60 219651 251013 4 6 0.016 0.0036 0.15 -1.84 D 2

[3166.2] 219950 251525 2 4 0.0042 0.0013 0.026 -2.60 D 2

5

4 P- 2S°

[3015.7] 219651 252801 4 2 0.013 9.1 X lO-4 0.036 -2.44 D 2

6

4p_4S° 2982.94 219442 252956 12 4 2.5 0.11 13 0.12 D ca

(4) [2955.7] 219133 252956 6 4 1.2 0.10 5.9 -0.22 D 3, Is 3001.65 219651 252956 4 4 0.78 0.11 4.2 -0.37 D 3, Is 3028.84 219950 252956 2 4 0.57 0.16 3.1 -0.50 D 3, Is

7

13 1 13O [2853.5] 219133 254167 6 4 0.025 0.0020 0.12 -1.91 D 2

[2896.3] 219651 254167 4 4 0.020 0.0025 0.096 -2.00 D 2

8

2 p 4p°

[4441.1] 224089 246600 4 2 0.0034 5.1 x 10-4 0.030 -2.69 D 2

9

2 P — 4 D°

[3942.3] 224089 249448 4 6 0.012 0.0041 0.21 -1.79 D 2

[3903.9] 224089 249698 4 4 8.4 X 10-4 1.9 x lO-4 0.0099 -3.11 D L

[3999.5] 224702 249698 2 4 0.0037 0.0018 0.046 -2.45 D 2

10 2p 2 D° 3713.0 224293 251218 6 10 1.3 0.45 33 0.43 D ca

(5) 3713.09 224089 251013 4 6 1.3 0.40 20 0.21 D 3, Is 3727.08 224702 251525 2 4 1.0 0.43 11 -0.07 D 3, Is 3643.89 224089 251525 4 4 0.23 0.046 2.2 -0.74 D 3, Is

11 2p _2§° 3506.9 224293 252801 6 2 1.5 0.095 6.6 -0.25 D ca

(6) 3481.96 224089 252801 4 2 1.2 0.11 5.0 -0.36 D 3, Is 3557.84 224702 252801 2 2 0.37 0.070 1.6 -0.85 D 3, Is

132
Nell. Allowed Transitions — Continued

No. Transition Multi- x ( A) fifcnr1) Ek(cm *) gi gk Am( 10« fik S(at.u.) 1 "&gf Accu- Source

Array plet sec

-1

) racy

12 2 P- 4 S°

[3463.1| 224089 252956 4 4 0.028 0.0051 0.23 -1.69 D 2

[3538.3] 224702 252956 2 4 0.0090 0.0034 0.079 -2.17 D 2

13 2p 2p° 3341.8 224293 254209 6 6 1.8 0.30 19 0.25 D ca

(7) 3323.75 224089 254167 4 4 1.4 0.24 11 - 0.02 D 3, Is 3378.28 224702 254294 2 2 1.3 0.23 5.1 0.34 D 3, Is 3309.78 224089 254294 4 2 0.46 0.037 1.6 -0.83 D 3, Is 3392.78 224702 254167 2 4 0.29 0.098 2.2 -0.71 D 3, Is

14 2p4 3s' — 2J3 _ 2p° 3571.1 246398 274392 10 14 1.3 0.36 42 0.56 D ca 2p4PD)3p' (9) 3568.53 246397 274411 6 8 1.3 0.33 24 0.30 D 3, Is 3574.64 246400 274367 4 6 1.3 0.37 18 0.17 D 3, Is 3574.23 246397 274367 6 6 0.092 0.018 1.3 -0.97 D 3, Is

15 2J)_2po 3336.9 246398 276357 10 6 1.7 0.17 19 0.23 D ca

(10)

3345.49 246397 276279 6 4 1.5 0.17 11 0.01 D 3, Is 3319.75 246400 276514 4 2 1.7 0.14 6.2 -0.24 D 3, Is 3345.88 246400 276279 4 4 0.17 0.028 1.3 - 0.95 D 3, Is

16 2 D_2D

° 3231.1 246398 277339 10 10 1.9 0.29 31 0.47 D ca

(11)

3230.16 246397 277346 6 6 1.8 0.27 18 0.22 D 3, Is 3232.38 246400 277328 4 4 1.7 0.26 11 0.02 D 3, Is 3231.97 246397 277328 6 4 0.19 0.020 1.3 -0.93 D 3, Is [3230.5] 246400 277346 4 6 0.13 0.029 1.3 -0.93 D 3, Is

17 2p43s" — 2§ 2p° 3480.3 276678 305403 2 6 1.6 0.86 20 0.24 D ca 2p4(’S)3p"

[3480.8] 276678 305399 2 4 1.6 0.58 13 0.06 D 2

[3479.5] 276678 305409 2 2 1.6 0.29 6.6 -0.24 D 2

18 2p43p — 4p°_4J) 3039.3 246337 279230 12 20 3.2 0.74 89 0.95 D ca 2p4

( 3 P)3of (8) 3034.48 246195 279139 6 8 3.1 0.57 34 0.53 D 2 3047.57 246417 279221 4 6 1.8 0.37 15 0.17 D 2 3054.69 246600 279327 2 4 0.93 0.26 5.2 -0.28 D 2 3027.04 246195 279221 6 6 1.5 0.20 12 0.08 D 2 3037.73 246417 279327 4 4 2.0 0.28 11 0.05 D 2 3045.58 246600 279425 2 2 2.5 0.35 7.0 -0.15 D 2

3017.34 246195 279327 6 4 0.35 0.032 1.9 -0.72 D 2

[3028.7] 246417 279425 4 2 0.84 0.058 2.3 -0.64 D 2

19 4p°_^r

[2897.1] 246195 280703 6 8 0.042 0.0071 0.41 -1.37 D 2

[2870.0] 246195 281028 6 6 0.11 0.014 0.77 -1.09 D 2

[2876.5] 246195 280950 6 4 0.18 0.015 0.86 -1.04 D 2

[2888.4] 246417 281028 4 6 0.015 0.0029 0.11 -1.94 D 2

[2895.0] 246417 280950 4 4 0.016 0.0021 0.079 -2.08 D 2

[2910.4] 246600 280950 2 4 0.43 0.11 2.1 -0.66 D 2

20 4p° 2p

[2934.3] 246195 280264 6 8 0.0030 5.1 x 10- 3 0.030 -2.51 D 2

[2907.7] 246417 280799 4 6 0.039 0.0075 0.29 -1.52 D 2

[2889.0] 246195 280799 6 6 0.015 0.0019 0.11 - 1.94 D 2

21 4p°_2D

[2933.7] 246195 280271 6 6 0.068 0.0087 0.51 -1.28 D 2

[2916.2] 246195 280476 6 4 0.047 0.0040 0.23 -1.62 D 2

[2953.0] 246417 280271 4 6 0.012 0.0023 0.089 -2.04 D 2

[2935.3] 246417 280476 4 4 0.032 0.0041 0.16 -1.79 D 2

[2951.1] 246600 280476 2 4 0.023 0.0061 0.12 -1.92 D 2

133
NeH. Allowed Transitions — Continued

No. Transition

Array

Multiplet

X(A) £i(cm 4 ) Ek( cm 4

) gi ^a-,(108 sec

-1

) /» S(at.u.) log gf Accuracy

Source

22 4p° 4p 2880.2 246337 281046 12 12 1.7 0.21 24 0.40 D ca

[2858.0] 246195 281174 6 6 0.91 0.11 6.3 -0.18 D 2

[2891.5] 246417 280992 4 4 0.097 0.012 0.47 -1.31 D 2

[2925.7] 246600 280770 2 2 0.52 0.067 1.3 -0.87 D 2

[2873.0] 246195 280992 6 4 0.46 0.038 2.2 -0.64 D 2

[2906.8] 246417 280770 4 2 1.6 0.10 3.9 -0.39 D 2

[2876.4] 246417 281174 4 6 0.84 0.16 5.9 -0.21 D 2

[2906.8] 246600 280992 2 4 0.75 0.19 3.6 -0.42 D 2

23 4- T)

O 1 ro "0 [2878.1] 246600 281335 2 2 0.067 0.0083 0.16 -1.78 D 2

[2846.4] 246600 281722 2 4 0.035 0.0084 0.16 -1.77 D 2

24 4 Dp — 4 D 3351.7 249402 279230 20 20 0.79 0.13 29 0.42 D ca

(12)

3329.20 249111 279139 8 8 0.87 0.15 13 0.07 D 2

3357.90 249448 279221 6 6 0.55 0.093 6.1 -0.26 D 2

3374.10 249698 279327 4 4 0.38 0.065 2.9 -0.59 D 2

3379.39 249842 279425 2 2 0.35 0.060 1.3 -0.92 D 2

3320.29 249111 279221 8 6 0.13 0.017 1.5 -0.87 D 2

3345.88 249448 279327 6 4 0.22 0.024 1.6 -0.83 D 2

3362.89 249698 279425 4 2 0.30 0.025 1.1 -0.99 D 2 3367.05 249448 279139 6 8 0.035 0.0079 0.53 -1.32 D 2

3386.24 249698 279221 4 6 0.067 0.017 0.77 -1.16 D- 2

3390.56 249842 279327 2 4 0.078 0.027 0.60 -1.27 D 2

25 4J)

0 _4p 3202.5 249402 280619 20 28 2.5 0.55 120 1.04 D ca

(13)

3218.21 249111 280174 8 10 3.6 0.70 59 0.75 D 2

3198.62 249448 280703 6 8 2.2 0.45 29 0.44 D 2

3190.86 249698 281028 4 6 0.73 0.17 7.0 -0.18 D 2

3213.70 249842 280950 2 4 1.8 0.56 12 0.05 D 2 3164.46 249111 280703 8 8 0.22 0.033 2.7 -0.58 D 2

3165.70 249448 281028 6 6 0.19 0.028 1.7 -0.78 D- 2

3198.88 249698 280950 4 4 0.59 0.090 3.8 -0.44 D- 2 3132.22 249111 281028 8 6 0.022 0.0024 0.20 -1.72 D- 2

3173.58 249448 280950 6 4 0.0017 1.7 X 10-4 0.011 -2.98 D- 2

26 4£)0 _2jr

(14)

3208.99 249111 280264 8 8 0.12 0.018 1.5 -0.84 D 2 3188.74 249448 280799 6 6 0.32 0.048 3.0 -0.54 D- 2

3154.82 249111 280799 8 6 0.0022 2.5 x 10-4 0.021 -2.70 D- 2

3244.15 249448 280264 6 8 1.1 0.22 14 0.13 D 2 3214.38 249698 280799 4 6 1.6 0.38 16 0.18 D- 2

27 1 Q

O Q

(15)

3243.34 249448 280271 6 6 0.18 0.029 1.8 — 0.76 D- 2

3248.15 249698 280476 4 4 0.14 0.022 0.94 -1.06 D 2

3269.86 249698 280271 4 6 0.48 0.12 5.0 -0.33 D- 2 3263.43 249842 280476 2 4 0.36 0.12 2.5 -0.64 D 2

[3222,0] 249448 280476 6 4 0.020 0.0020 0.13 -1.92 D 2

[3208.3] 249111 280271 8 6 0.0091 0.0010 0.089 -2.07 D 2

28 4 D° — 4 P 3159.3 249402 281046 20 12 0.39 0.035 7.2 -0.16 D ca

(16)

3118.02 249111 281174 8 6 0.11 0.013 1.0 -0.99 D 2 3169.30 249448 280992 6 4 0.17 0.017 u -0.99 D- 2

[3217.4] 249698 280770 4 2 0.13 0.0098 0.42 -1.41 D 2

3151.16 249448 281174 6 6 0.066 0.0016 0.099 - 2.02 D- 2

3194.61 249698 280992 4 4 0.14 0.021 0.088 -1.08 D- 2

[3232.3] 249842 280770 2 2 0.033 0.0051 0.11 -1.99 D 2

3176.16 249698 281174 4 6 0.034 0.0078 0.33 -1.50 D 2

3209.38 249842 280992 2 4 0.51 0.16 3.3 -0.50 D- 2

134
Ne II. Allowed Transitions —Continued

No. Transition Multi- \(A) Ei ( cm *) Ek(cm ') gi gk /f*t(108 fk S(at.u.) log gf Accu- Source

Array plet sec

-1

) racy

29 0

o 1 tc *0 [3135.8] 249842 281722 2 4 0.020 0.0058 0.12 -1.94 D 2

13160.0] 249698 281335 4 2 0.019 0.0014 0.059 - 2.25 D 2

[3097.5] 249448 281722 6 4 0.015 0.0015 0.089 -2.06 D 2

30 2 D° — 4 D

(18)

3554.39 251013 279139 6 8 0.013 0.0034 0.24 -1.69 D 2

[3544.2] 251013 279221 6 6 0.0037 7.0 X 10-4 0.049 -2.38 D 2

31 2D°_4p

(19)

3367.20 251013 280703 6 8 1.0 0.24 16 0.15 D 2 3388.46 251525 281028 4 6 2.0 0.51 23 0.31 D 2 3330.78 251013 281028 6 6 0.12 0.020 1.3 -0.93 D 2

[3397.5] 251525 280950 4 4 0.049 0.0084 0.38 -1.47 D 2

32 2£)P_2p 3414.9 251218 280493 10 14 1.4 0.34 38 0.53 D ca

(20)

3417.71 251013 280264 6 8 2.0 0.47 32 0.45 D 2 3414.82 251525 280799 4 6 0.41 0.11 4.8 -0.37 D- 2 3356.35 251013 280799 6 6 0.11 0.019 1.3 -0.93 D- 2

33 2 D° — 2 D 3431.3 251218 280353 10 10 0.85 0.15 17 0.18 D ca

(21)

3416.87 251013 280271 6 6 0.67 0.12 7.9 -0.15 D 2 3453.10 251525 280476 4 4 0.59 0.11 4.8 -0.38 D 2

[3393.2] 251013 280476 6 4 0.022 0.0025 0.17 -1.82 D 2 3477.69 251525 280271 4 6 0.34 0.091 4.2 -0.44 D- 2

34 2J)° 4p

(22)

3314.60 251013 281174 6 6 0.026 0.0042 0.28 -1.60 D 2 3371.87 251525 281174 4 6 0.12 0.032 1.4 -0.89 D 2

[3392.7] 251525 280992 4 4 0.14 0.025 1.1 -1.00 D 2 [3334.8] 251013 280992 6 4 0.030 0.0033 0.22 -1.70 D 2

35 2 J)° 2p 3291.6 251218 281590 10 6 0.098 0.0095 1.0 -1.02 D ca

(23)

3255.39 251013 281722 6 4 0.12 0.013 0.81 -1.12 D 2 3353.63 251525 281335 4 2 0.048 0.0040 0.18 -1.79 D 2 3310.55 251525 281722 4 4 0.0061 0.0010 0.044 -2.40 D 2

36 2 S° — 4 D

[3754.9] 252801 279425 2 2 0.0095 0.0020 0.050 -2.40 D 2

37 2 S° — 4 F

(24)

3551.52 252801 280950 2 4 0.055 0.021 0.49 -1.38 D 2

38 2 S° — 2 D

(26)

3612.35 252801 280476 2 4 0.22 0.087 2.1 -0.76 D 2

39 2 S°- 4 P

(27)

3546.22 252801 280992 2 4 0.021 0.0081 0.19 -1.79 D 2

[3574.3] 252801 280770 2 2 0.046 0.0088 0.21 -1.75 D 2

40 2 S° — 2 P 3472.5 252801 281590 2 6 1.3 0.70 16 0.15 D ca

(28)

3456.68 252801 281722 2 4 1.0 0.36 8.2 -0.14 D 2

3503.61 252801 281335 2 2 1.9 0.34 7.9 -0.16 D 2

135
Nell. Allowed Transitions — Continued

No. Transition

Array

Multiplet

mA) Ei(cm 0 Ek ( cm 4

) gi gk ^;( 108 sec

-1

)

fik S(at.u.) log gf

3806.30 252956 279221 4 6 0.013 0.0043 0.22 - 1.76 3790.96 252956 279327 4 4 0.017 0.0036 0.18 - 1.85

[ 3776. 9] 252956 279425 4 2 0.0074 8.0 X 10-4 0.040 - 2.50

3561.23 252956 281028 4 6 0.11 0.031 1.5 - 0.91 3571.26 252956 280950 4 4 0.43 0.083 3.9 - 0.48

3590.47 252956 280799 4 6 0.087 0.025 1.2 - 0.99

3659.93 252956 280271 4 6 0.11 0.033 1.6 - 0.88

3632.75 252956 280476 4 4 0.090 0.018 0.85 - 1.15

3559.0 252956 281046 4 12 1.1 0.63 30 0.40

3542.90 252956 281174 4 6 1.3 0.35 16 0.15

3565.84 252956 280992 4 4 0.82 0.16 7.3 - 0.20

3594.18 252956 280770 4 2 1:3 0.12 5.9 - 0.30

3475.25 252956 281722 4 4 0.0047 8.5 x 10-4 0. 039^ - 2.47

3522.72 252956 281335 4 2 0.011 0.0011 0.050 - 2.37

3721.86 254167 281028 4 6 0.036 0.011 0.55 - 1.35

[ 3732. 7] 254167 280950 4 4 0.030 0.0062 0.31 - 1.60

3753.83 254167 280799 4 6 0.55 0.18 8.7 - 0.15

3824.0 254209 280353 6 10 0.94 0.35 26 0.32

3829.77 254167 280271 4 6 0.88 0.29 15 0.06

3818.44 254294 280476 2 4 0.69 0.30 7.6 - 0.22

3800.02 254167 280476 4 4 0.35 0.076 3.8 - 0.52

3701.81 254167 281174 4 6 0.25 0.077 3.7 .- 0.51 3744.66 254294 280992 2 4 0.22 0.091 2.2 - 0.74

[ 3726. 9] 254167 280992 4 4 0.092 0.019 0.94 - 1.12

3651.2 254209 281590 6 6 1.2 0.24 17 0.15

3628.06 254167 281722 4 4 0.57 0.11 5.3 - 0.35

3697.09 254294 281335 2 2 0.34 0.070 1.7 - 0.86

3679.80 254167 281335 4 2 0.36 0.037 1.8 -0.83

3644.86 254294 281722 2 4 0.85 0.34 8.2 - 0.17

AccuracySource

41

42

43

44

45

46

47

48

49

50

51

4 S° — 4 D

( 30)

4 S° — 4F

( 31)

4 S° — 2F

( 32)

4 S° — 2 D

( 33)

4S°_ 4 p

( 34)

4 S°- 2 P

( 35)

2p°_4jr

( 37)

2p° _ 2p

( 38)

2p° 2£)

( 39)

2p° 4p

( 40)

2p° _ 2p

( 41 )

D

D

D

D

D

DD

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

2

2

ca

ca

2

2

2

2

2

2

ca

136

CM

CM

CM
Nen. Allowed Transitions —Continued

No. Transition

Array

Multiple

MA) Ei( cm ') Ek ( cm *) gi gk AMi 10h sec

-1

)

ftk S(at.u.) log gf Accuracy

Source

52 2p43d — 4 D — 4 D° 4229.6 279230 302866 20 20 0.39 0.10 29 0.32 D ca

2/j

4PP)4f (52)

4219.76 279139 302831 8 8 0.33 0.089 9.8 -0.15 D Is 4231.60 279221 302846 6 6 0.22 0.060 5.0 - 0.45 D Is 4239.95 279327 30291)5 4 4 0.15 0.042 2.3 -0.78 D Is 4242.20 279425 302991 2 2 0.19 0.052 1.5 -0.98 D Is 4217.15 279139 302846 8 6 0.074 0.015 1.6 -0.93 D Is 4220.92 279221 302905 6 4 0.14 0.024 2.0 -0.84 D Is 4224.57 279327 302991 4 2 0.19 0.026 1.4 -0.99 D Is [4234.3] 279221 302831 6 8 0.055 0.020 1.7 -0.93 D Is 4250.68 279327 302846 4 6 0.090 0.036 2.0 -0.84 D Is 4257.82 279425 302905 2 4 0.096 0.052 1.5 -0.98 D Is

53 O -t- 1TT *r 4394.5 280619 303368 28 28 0.26 0.076 31 0.33 D ca

(56)

4397.94 280174 302906 10 10 0.24 0.070 10 -0.16 D Is 4379.50 280703 303531 8 8 0.20 0.058 6.7 -0.33 D Is 4385.00 281028 303827 6 6 0.18 0.053 4.6 -0.50 D Is 4430.90 280950 303512 4 4 0.21 0.062 3.6 -0.61 D Is [4280.3] 280174 303531 10 8 0.028 0.0062 0.88 -1.21 D Is [4323.3] 280703 303827 8 6 0.048 0.010 1.2 -1.09 D Is 4446.46 281028 303512 6 4 0.052 0.010 0.91 -1.21 D Is 4502.52 280703 302906 8 10 0.021 0.0081 0.96 -1.19 D Is 4442.67 281028 303531 6 8 0.035 0.014 1.2 -1.08 D Is 4369.77 280950 303827 4 6 0.035 0.015 0.88 -1.21 D Is

54 4F — 4 G° 4360.8 280619 303544 28 36 2.4 0.89 360 1.39 D ca

(57)

4290.40 280174 303476 10 12 2.5 0.83 120 0.92 D Is 4391.94 280703 303465 8 10 2.2 0.79 91 0.80 D Is 4409.30 281028 303701 6 8 2.0 0.79 69 0.68 D Is 4413.20 280950 303602 4 6 2.0 0.89 52 0.55 D Is [4292.4] 280174 303465 10 10 0.20 0.056 7.9 -0.25 D Is [4346.9] 280703 303701 8 8 0.33 0.093 11 -0.13 D Is 4428.54 281028 303602 6 6 0.33 0.096 8.4 -0.24 D Is [4249.2] 280174 303701 10 8 0.0073 0.0016 0.22 -1.80 D Is 4365.72 280703 303602 8 6 0.012 0.0026 0.30 -1.68 D Is

Forbidden Transitions

Naqvi’s calculation [1] of the one possible transition in the ground state configuration 2

p

5 is the

only available source. The line strength should be quite accurate, since it does not sensitively

depend on the choice of the interaction parameters.

Reference

[1] Naqvi, A. M., Thesis Harvard (1951).

Nell. Forbidden Transitions

No. Transition

Array

Multiple mA) Ei( cm *) Ek(cm ') gi gk Type of

Transition

Aki ( sec ') S(at.u.) Accuracy

Source

1 2p5 -2p5 2p° _ 2p°

[12.78 X 104

] 0 782 4 2 ni 0.00859 1.33 B 1

137
Ne III.

Ground State ls2 2s2 2p4 3 P2

Ionization Potential 63.5 eV = 512312 cm"1

Allowed Transitions

List of tabulated lines:

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

227.24 13 283.894 5 2163.5 17

227.42 12 301.124 7 2163.7 17

227.49 12 308.559 9 2163.77 17

227.57 13 313.048 4 2412.73 18

227.72 13 313.677 4 2412.94 18

227.73 12 313.92 4 2413.18 18

227.76 12 379.308 2 2413.54 18

227.82 12 427.840 3 2413.78 18

227.90 12 488.103 1 2590.04 14

228.85 11 488.868 1 2593.60 14

228.88 11 489.501 1 2595.68 14

228.91 11 489.641 1 2610.03 16

229.19 11 490.310 1 2611.42 16

229.22 11 491.050 1 2612.5 16

229.34 11 2086.96 19 2613.41 16

251.145 10 2087.44 19 2614.51 16

251.558 10 2088.92 19 2615.87 16

251.726 10 2089.43 19 2677.90 15

267.059 6 2092.44 19 2678.64 15

267.516 6 2095.54 19

267.709 6 2159.44 17 282.50 8 2159.60 17

283.178 5 2160.88 17

283.206 5 2161.04 17

283.690 5 2161.22 17

The values for the majority of the transitions are taken from the self-consistent field calculations

(with exchange) by Weiss[l]. These calculations do not include the important effects of configuration interaction; hence, fairly large uncertainties must be expected in most cases. The average

of the dipole length and velocity approximations is adopted [1]. For the 2s2 2p4 J S — 2s2p5

1

P° transition a value is available from the calculations of Bolotin

et al. [2] which include configuration interaction in a limited way. Again, large uncertainties are

to be expected.

References

[1] Weiss, A. W., private communication (1965).

[2] Bolotin, A. B., Shironas, I. I., and Braiman, M.

33, matematika, fizika, 9, 107-112 (1960).

Yu., Vilniaus Valstybinio v. Kapsuko vardo universiteto Mokslo Darbai,

138
Nelli. Allowed Transitions

No. Transition

Array

Multiplet

\(A) £/(cm_I

) £/t(cm ’) gi gk /*A-i(10

H sec

-1

)

fik S(at.u.) lug gf Accuracy source

1 2s'

22p4 - 3p _ :ip° 489.54 317 204589 9 9 71 0.26 3.7 0.36 E 1 2s2p5 (1 uv)

489.501 0 204292 5 5 52 0.19 1.5 - 0.03 E Is 489.641 643 204879 3 3 18 0.064 0.31 -0.72 E Is 488.103 0 204879 5 3 30 0.063 0.51 -0.50 E Is 488.868 643 205204 3 1 71 0.085 0.41 - 0.59 E Is 491.050 643 204292 3 5 17 0.11 0.51 -0.50 E Is 490.310 927 204879 1 3 23 0.25 0.41 -0.60 E Is

2

l D -lp° 379.308 25841 289479 5 3 210 0.27 1.7 0.13 E 1 (6 uv)

3 (r 1 “0o 427.840 55747 289479 1 3 16 0.13 0.19 -0.87 E 2

(9 uv)

4 2P

4 - 3p _ 3§° 313.35 317 319445 9 3 81 0.040 0.37 -0.45 E 1 2p3

( 4 S°)3s (2 uv)

313.048 0 319445 5 3 46 0.041 0.21 -0.69 E Is 313.677 643 319445 3 3 26 0.039 0.12 -0.93 E Is 313.92 927 319445 1 3 9.0 0.040 0.041 -1.40 E Is

5 2P

4 - 3p __ 3J)° 283.41 317 353167 9 15 28 0.057 0.48 -0.29 E 1 2p3

( 2 D°)3s' (3 uv)

283.206 0 353148 5 7 28 0.047 0.22 -0.63 E Is 283.690 643 353177 3 5 21 0.043 0.12 -0.89 E Is 283.894 927 353197 1 3 16 0.057 0.053 -1.25 E Is 283.178 0 353177 5 5 7.1 0.0086 0.040 -1.37 E Is 283.690 643 353197 3 3 12 0.014 0.040 -1.37 E Is 283.178 0 353197 5 3 0.80 5.8 X 10-4 0.0027 -2.54 E Is

6 2P

4 - 3p _ 3p° 267.29 317 374448 9 9 32 0.034 0.27 -0.51 E 1 2p3

( 2 P°)3s"

(4 uv)

267.059 0 374434 5 5 23 0.025 0.11 -0.90 E Is 267.516 643 374461 3 3 8.1 0.0087 0.023 -1.58 E Is 267.059 0 374461 5 3 13 0.0086 0.038 -1.36 E Is 267.516 643 374478 3 1 32 0.011 0.030 -1.47 E Is 267.516 643 374434 3 5 8.0 0.014 0.038 -1.37 E Is 267.709 927 374461 1 3 11 0.034 0.030 -1.47 E Is

7 2p4 ~ 4 D — 'D° 301.124 25841 357930 5 5 71 0.097 0.48 -0.32 E 1 2p3

( 2 D°)3s' (7 uv)

8 2p4 - 1 D — 4 P° 282.50 25841 379834 5 3 45 0.032 0.15 -0.79 E 1 2p3

( 2 P°)3s" (8 uv)

9 2p4 — cJo 1 *6o 308.559 55747 379834 1 3 32 0.14 0.14 -0.86 E 1 2p3

( 2 P°)3s" (10 uv)

10 2P

4 - 3p _ 3J3° 251.33 317 398203 9 15 140 0.21 1.6 0.29 D- 1 2p3

( 4S°)3d (5 uv)

251.145 0 398211 5 7 140 0.18 0.75 -0.04 D- Is 251.558 643 398197 3 5 100 0.16 0.40 -0.32 D- Is 251.726 927 398193 1 3 76 0.22 0.18 -0.66 D- Is 251.145 0 398197 5 5 33 0.031 0.13 -0.80 D- Is 251.558 643 398193 3 3 55 0.052 0.13 -0.80 D- Is 251.145 0 398193 5 3 3.8 0.0022 0.0089 -1.97 D- Is

11 2P

4 - 3p _ 3J)° 229.06 317 436891 9 15 73 0.096 0.65 -0.06 D- 1 2p3

( 2 D°)3d'

[228.91| 0 436845 5 7 72 0.080 0.30 -0.40 D- Is [229.22J 643 436914 3 5 54 0.071 0.16 -0.67 D- Is [229.34] 927 436959 1 3 40 0.095 0.072 -1.02 D- Is [228.88] 0 436914 5 5 18 0.014 0.054 -1.14 D- Is [229.19] 643 436959 3 3 30 0.024 0.054 - 1.15 D- Is [228.85] 0 436959 5 3 2.0 9.6 X 10-4 0.0036 -2.32 D- Is

139
Nelli. Allowed Transitions — Continued

No. Transition

Array

Multiplet

X(A) £i(cm Ek { cm Si gk Aki (l(P sec

-1

)

fik S(at.u.) log gf Accuracy

Source

12 3p _ 3p° 227.62 317 439646 9 9 160 0.12 0.83 0.04 D- 1

[227.49] 0 439586 5 5 120 0.093 0.35 -0.33 D- Is [227.76] 643 439708 3 3 39 0.031 0.069 -1.04 D- Is [227.42] 0 439708 5 3 69 0.032 0.12 -0.80 D- Is [227.73] 643 439760 3 1 160 0.041 0.092 -0.91 D- Is [227.82] 643 439586 3 5 41 0.053 0.12 -0.80 D- Is [227.90] 927 439708 1 3 52 0.12 0.092 -0.91 D- Is

13 3p _ 3g° 227.40 317 440065 9 3 210 0.055 0.37 -0.31 D- 1

[227.24] 0 440065 5 3 120 0.056 0.21 -0.55 D- Is [227.57] 643 440065 3 3 69 0.053 0.12 -0.80 D- Is [227.72] 927 440065 1 3 23 0.055 0.041 -1.26 D- Is

14 2p33s — 5 S°- 5 P 2592.3 [314148] [352712] 5 15 2.5 0.76 32 0.58 D ca 2p3

( 4 S°)3p (11 uv)

2590.04 [314148] [352746] 5 7 2.5 0.36 15 0.25 D Is 2593.60 [314148] [352693] 5 5 2.5 0.25 11 0.10 D Is 2595.68 [314148] [352662] 5 3 2.5 0.15 6.5 -0.12 D Is

15 3§° _ 3p 2678.2 319445 356773 3 9 2.4 0.78 20 0.37 D ca

(12 uv)

2677.90 319445 356777 3 5 2.4 0.43 11 0.11 D Is 2678.64 319445 356766 3 3 2.4 0.26 6.8 -0.11 D Is 2677.90 319445 356777 3 1 2.4 0.086 2.3 -0.59 D Is

16 2p33s' — 3J)° _ 3p 2612.4 353167 391435 15 21 2.4 0.34 44 0.71 D ca 2p3

( 2 DP)3p'

2610.03 353148 391450 7 9 2.4 0.32 19 0.34 D Is 2613.41 353177 391430 5 7 2.1 0.31 13 0.18 D Is 2615.87 353197 391414 3 5 2.0 0.34 8.9 0.01 D Is 2611.42 353148 391430 7 7 0.27 0.027 1.6 -0.72 D Is 2614.51 353177 391414 5 5 0.37 0.038 1.6 -0.72 D Is [2612.5] 353148 391414 7 5 0.011 7.8 X 10 -4 0.047 -2.26 D Is

17 2p33p — 5p _ 5 D

o 2pYS°)Sd 2163.77 [352746] [398947] 7 9 6.5 0.59 29.4 0.62 C- ca , Is 2161.22 [352693] [398949] 5 7 4.36 0.428 15.2 0.330 C- ca , Is 2159.60 [352662] [398952] 3 5 2.30 0.268 5.7 - 0.096 C- ca. Is [2163.7] [352746] [398949] 7 7 2.25 0.158 7.9 0.044 C- ca. Is 2161.04 [352693] [398952] 5 5 3.82 0.267 9.5 0.126 C- ca. Is 2159.44 [352662] [398956] 3 3 4.92 0.344 7.3 0.014 C- ca. Is [2163.5] [352746] [398952] 7 5 0.450 0.0227 1.12 -0.80 c- ca. Is 2160.88 [352693] [398956] 5 3 1.64 0.069 2.45 -0.464 c- ca. Is

18 3p _ 3J)° 2413.0 356773 398203 9 15 4.87 0.71 51 0.80 c- ca

2412.73 356777 398212 5 7 4.87 0.59 23.6 •0.473 c- Is 2412.94 356766 398197 3 5 3.65 0.53 12.7 0.202 c- Is 2413.78 356777 398193 1 3 2.70 0.71 5.6 -0.150 c- Is 2413.54 356777 398197 5 5 1.22 0.106 4.22 -0.275 c- Is 2413.18 356766 398193 3 3 2.03 0.177 : 4.22 -0.275 c- Is 2413.78 356777 398193 5 3 0.135 0.0071 0.281 -1.451 c- Is

19 2p33p' — 3 D — 3 D° 2091.7 389099 436891 15 15 3.92 0.257 26.6 0.59 c- ca 2p3

( 2 D°)3d'

2095.54 389139 436845 7 7 3.47 0.228 11.0 0.204 c- Is 2089.43 389069 436914 5 5 2.73 0.179 6.2 -0.048 c- Is 2086.96 389058 436959 3 3 2.96 0.194 3.99 -0.236 c- Is 2092.44 389139 436914 7 5 0.61 0.0286 1.38 -0.70 c- Is 2087.44 389069 436959 5 3 0.99 0.0387 1.33 -0.71 c- Is 2092.44 389069 436845 5 7 0.435 0.0400 1.38 -0.70 c- Is 2088.92 389058 436914 3 5 0.59 0.064 1.33 -0.71 c- Is

140
Forbidden Transitions

The adopted values represent, as in the case of F II, the work of Garstang [1] and Naqvi [2],

who independently have done essentially the same calculations and have arrived at very similar

results. For the selection of values, the same considerations as for F II have been applied.

References

[1] Garstang, R. H., Monthly Notices Roy. Astron. Soc. Ill, 115-124 (1951).

[2] Naqvi, A. M., Thesis Harvard (1951).

Ne in. Forbidden Transitions

No. Transition

Array

Multiplet

MA) FiCcm J ) Ek( cm x ) gi gk Type of

Transition

Aki(sec

-1

) S(at.u.) Accuracy

Source

1 2p

4 — 2p4 3p 3p

[15.55 x 104

] 0 642.9 5 3 m. 0.00599 2.50 B 1,2

[15.55 x 104

] 0 642.9 5 3 e 2.60 X 10-9 0.422 C 1 [10.79 x 104

] 0 927 5 1 e 2.03 x 10-8 0.176 C 1 [36.19 x 104

] 642.9 927 3 1 m 0.00115 2.00 B 1,2

2 3p_lD

(1 F)

3868.74 0 25841 5 5 m 0.170 0.00182 C 2 3868.74 0 25841 5 5 e 3.0 x 10-4 7.7 X 10“4 D 1 3967.51 642.9 25841 3 5 m 0.052 6.1 x 10-4 C 2 3967.51 642.9 25841 3 5 e 3.8 x 10-5 1.1 x 10-4 D 1 [4012.7] 927 25841 1 5 e 1.2 x 10-5 3.7 X 10-5 D 1 3

3 p_lS

[1793.8] 0 55747 5 1 e 0.0051 5.6 x 10-5 D 1 [1814.8] 642.9 55747 3 1 m 2.20 4.87 X 10-4 C 1

4 'D-'S

(2 F)

3342.9 25841 55747 5 1 e 2.80 0.70 C 1

141
Ground State

Ne IV.

ls2 2s2 2p3 4 S3

°/2

Ionization Potential 97.02 eV= 782768 cm-1

Allowed Transitions

List of tabulated lines:

Wavelength [A] No.

TIT 9 Wavelength [A] No.

o Wavelength [A] No.

208.485 7 541.124 1 2262.08 14

208.734 7 542.076 1 2264.54 14

208.899 7 543.884 1 2285.79 12

212.556 8 2018.44 13 2293.14 12 357.831 3 2022.19 13 2293.49 12

358.70 3 2029.2 13 2350.84 9

387.13 6 2033.5 13 2352.52 9

388.23 6 2174.4 10 2357.96 9

421.584 5 2176.1 10 2362.68 9

469.77 2 2188.0 10 2363.28 11

469.817 2 2192.6 10 2365.49 11 469.865 2 2203.88 10 2372.16 9

521.730 4 2206.4 10 2384.20 9

521.74 4 2220.81 10 2384.95 9

521.810 4 2258.02 14 2404.28 11

2405.19 9

The values for several of the transitions are taken from the self-consistent field calculations

(with exchange) by Weiss [1]. These calculations do not include the important effects of configuration interaction; hence, fairly large uncertainties must be expected. The average of the

dipole length and velocity approximations is adopted [1]. For the 2o 22

p

3 2 P° — 2s2p4 2 D, 2S transitions values are available from the calculations of Levin- son et al. [2J which include configuration interaction in a limited way. Again, large uncertainties

are to be expected.

References

[1] Weiss, A. W., private communication (1965).

[2] Levinson, I. B., Bolotin, A. B., and Levin, L. L, Trudy Vil’nyusskogo un. 5, 49-55 (1956).
Ne IV. Allowed Transitions

No. Transition Multi- x(A) 5 E ^(cm_1

) gi /M10« file S(at.u.) lug gf Accu- Source

Array plet sec

-1

) racy

1 2s22p3 — 4 S°- 4 P 542.82 0 184222 4 12 25 0.34 2.4 0.13 E 1 2s2p4 (1 uv)

543.884 0 183860 4 6 25 0.17 1.2 -0.17 E Is 542.076 0 184477 4 4 25 0.11 0.80 -0.35 E Is 541.124 0 184799 4 2 25 0.056 0.40 - 0.65 E Is

2

2 D° — 2 D 469.84 [40968] [253808] 10 10 51 0.17 2.6 0.23 E 1 (4 uv)

469.817 [40950] [253799] 6 6 49 0.16 1.5 -0.01 E Is 469.817 [40995] [253822] 4 4 46 0.15 0.94 -0.22 E Is [469.77J [40950] [253822] 6 4 4.9 0.011 0.10 -1.19 E Is 469.865 [40995] [253799] 4 6 3.3 0.016 0.10 -1.19 E Is

3

2J)o 2p 358.40 [40968] [319985] 10 6 150 0.18 2.1 0.25 E 1 (5 uv)

358.70 [40950] [319751] 6 4 140 0.18 1.3 0.04 E Is 357.831 [40995] [320452] 4 2 150 0.15 0.70 -0.23 E Is 358.70 [40995] [319751] 4 4 15 0.030 0.14 -0.93 E Is

4 2p°_2[) 521.78 [62155] [253808] 6 10 7.7 0.052 0.54 -0.50 E 2

(8 uv)

521.810 [62157] [253799] 4 6 7.6 0.047 0.32 -0.73 E Is 521.730 [62150] [253822] 2 4 6.4 0.052 0.18 -0.98 E Is [521.74] [62157] [253822] 4 4 1.3 0.0052 0.036 -1.68 E Is

5

2 po_ 2 S 421.584 [62755] [299351] 6 2 120 0.11 0.92 -0.18 E 2

(9 uv)

6

2p° 2p 387.85 [62755] [319985] 6 6 75 0.17 1.3 0.01 E 1 (10 uv)

388.23 [62157] [319751] 4 4 62 0.14 0.72 -0.25 E Is 387.13 [62150] [320452] 2 2 51 0.11 0.29 -0.64 E Is 387.13 [62157] [320452] 4 2 24 0.027 0.14 -0.96 E Is 388.23 [62150] [319751] 2 4 12 0.055 0.14 -0.96 E Is

7 2p

3 - 4 S°- 4 P 208.63 0 479309 4 12 48 0.095 0.26 -0.42 E 1 2p2

( 3 P)3s (2 uv)

208.485 0 479662 4 6 48 0.047 0.13 -0.72 E Is 208.734 0 479083 4 4 48 0.032 0.087 -0.90 E Is 208.899 0 478701 4 2 48 0.016 0.043 -1.20 E Is

8 2p

3 - 2D° — 2 D 212.556 [40968] [511681] 10 10 74 0.050 0.35 -0.30 E 1 2p2

( 1 D)3s' (6 uv)

9 2p23s — 4p_4J)0 2361.5 479309 521643 12 20 2.5 0.34 32 0.62 D ca 2p2

( 3 P)3p

2357.96 479662 522058 6 8 2.5 0.28 13 0.22 D Is 2352.52 479083 521578 4 6 1.7 0.22 6.7 -0.06 D Is 2350.84 478701 521226 2 4 1.0 0.17 2.7 -0.46 D Is 2384.95 479662 521578 6 6 0.72 0.061 2.9 -0.43 D Is 2372.16 479083 521226 4 4 1.3 0.11 3.4 -0.36 D Is 2362.68 478701 521013 2 2 2.0 0.17 2.7 -0.47 D Is 2405.19 479662 521226 6 4 0.12 0.0067 0.32 -1.39 D Is 2384.20 479083 521013 4 2 0.40 0.017 0.53 -1.17 D Is

10 4p 4p° 2197.5 479309 524802 12 12 3.1 0.23 20 0.43 D ca

2203.88 479662 525022 6 6 2.2 0.16 6.8 -0.03 D Is [2192.6] 479083 524677 4 4 0.42 0.030 0.86 -0.92 D Is [2188.0] 478701 524391 2 2 0.52 0.037 0.54 -1.13 D Is 2220.81 479662 524677 6 4 1.4 0.067 2.9 -0.40 D Is [2206.4] 479083 524391 4 2 2.5 0.093 2.7 -0.43 D Is [2176.1] 479083 525022 4 6 0.96 0.10 2.9 -0.39 D Is [2174.4] 478701 524677 2 4 1.3 0.19 2.7 -0.42 D Is

143

766-655 0-66—11
NelV. Allowed Transitions — Continued

No. Transition

Array

Multiplet

x(A) £i(cm 9 Ek(cm 9 gi gk 4«(108 sec~9

fik S(at.u.) log gf Accuracy

Source

11 2p_2D

0 2366.7 [488934] [531174] 6 10 2.6 0.37 17 0.35 D ca

2363.28 [489161] [531462] 4 6 2.7 0.33 10 0.12 D Is 2365.49 [488479] [530741] 2 4 2.2 0.37 5.7 -0.13 D Is 2404.28 [489161] [530741] 4 4 0.42 0.036 1.1 -0.84 D Is

12 2p2 3s' — 2£)_2jr° 2289.1 [511687] [555353] 10 14 2.8 0.30 23 0.48 D ca 2p2

(

1 D)3p'

2285.79 [511678] [555413] 6 8 2.8 0.29 13 0.24 D Is 2293.49 [511685] [555273] 4 6 2.6 0.30 9.2 0.08 D Is 2293.14 [511678] [555273] 6 6 0.18 0.014 0.65 -1.06 D Is

13 2 D — 2 D° 2031.7 [511681] [560885] 10 10 4.0 0.25 17 0.39 D ca

2022.19 [511678] [560846] 6 6 3.8 0.23 9.3 0.14 D Is 2018.44 [511685] [560943] 4 4 3.7 0.22 6.0 -0.05 D Is [2029.2] [511678] [560943] 6 4 0.40 0.017 0.66 -1.00 D Is [2033.5] [511685] [560846] 4 6 0.27 0.025 0.66 -1.00 D Is

14 2p23s" — 6g 6p° 2260.8 [538500] [582718] 6 18 2.7 0.63 28 0.58 D ca 2p2

( 1 S)3p"

2258.02 [538500] [582773] 6 8 2.7 0.28 12 0.23 D Is 2262.08 [538500] [582693] 6 6 2.7 0.21 9.4 0.10 D Is 2264.54 [538500] [582645] 6 4 2.7 0.14 6.2 -0.08 D Is

Forbidden Transitions

Garstang’s 1960 calculations [1] are exclusively used, since it is felt that the important effects

of configuration interaction are partially taken into account in this work and a reliable estimate

of the quadrupole integral is provided (see also general introduction).

Reference

[1] Garstang, R. H., Monthly Notices Roy. Astron. Soc. 120, 201 (1960).

Ne IV. Forbidden Transitions

No. Transition Multi- x(A) Ei( cm 9 Ek ( cm 9 gi gk Type of Aki( sec 9 S(at.u.) Accu- Source

Array plet Transition racy

1 2p

3 - 2p3 4 S° — 2 D°

[2441.3] 0 40950 4 6 m 1.80 x 10~4 5.8 x 10- 7 C 1 [2441.3] 0 40950 4 6 e 4.1 x 10“4 1.3 X 10-4 D 1 [2438.6] 0 40995 4 4 m 0.0053 1.14 X 10-5 C 1 [2438.6] 0 40995 4 4 e 2.7 X 10 4 5.5 x 10-5 D 1

2

4g° 2po

[1609.0] 0 62150 4 2 m 0.53 1.64 X 10-4 C 1 [1609.0] 0 62150 4 2 e 8.6 x 10-6 1.1 x 10-7 D 1 [1608.8] 0 62157 4 4 m 1.33 8.2 x 10-4 C 1 [1608.8] 0 62157 4 4 e 1.5 X 10- 7 3.8 x lO-9 D 1

3

o 1 QO Q

[22.2 x 105

] 40950 40995 6 4 m 1.48 X 10“6 2.40 C + 1 [22.2 x 105

] 40950 40995 6 4 e 1.1 x 10“ 17 0.0014 D 1

144
Ne IV. Forbidden Transitions — Continued

No. Transition

Array

Multiplet

x(A) £i(cm ') Ek(cm ') gi gk Type of

Transition

/Gf(sec -1

) S(at.u.) Accuracy

Source

4 2J)o _ 2po

(1 F)

4714.25 40950 62150 6 2 e 0.110 0.305 C 1 4715.61 40950 62157 6 4 m 0.210 0.00327 C 1 4715.61 40950 62157 6 4 e 0.191 1.06 C 1 4724.15 40995 62157 4 4 m 0.358 0.0056 C 1 4724.15 40995 62157 4 4 e 0.079 0.439 C 1 4725.62 40995 62150 4 2 m 0.229 0.00179 C 1 4725.62 40995 62150 4 2 e 0.160 0.446 C 1

5 2 p° _ 2fK> [15.6 X 106

] 62150 62157 2 4 m 2.36 X 10"9 1.33 C + 1 [15.6 x 106

] 62150 62157 2 4 e 2.6 X 10"22 5.7 x 10"4 D 1

Ground State

NeV.

ls2 2s2 2p2 3P0

Ionization Potential 126.3 eV = 1018634 cm'1

Allowed Transitions

List of tabulated lines:

Wavelength [AJ No. Wavelength [A] No. Wavelength [A] No.

142.44 8 173.932 6 572.336 1 142.52 8 357.955 3 2224.12 14

142.58 8 358.472 3 2227.42 14

142.66 8 359.385 3 2232.41 14

142.72 8 365.594 5 2236.29 14

143.22 7 416.198 4 2245.48 14

143.27 7 480.406 2 2256.05 14

143.30 7 481.281 2 2257.9 14

143.34 7 481.361 2 2259.57 13

143.42 7 482.987 2 2263.39 13

143.45 7 568.418 1 2265.71 13

147.13 11 569.759 1 2274.54 14

148.78 10 569.830 1 2282.61 13

151.42 9 572.03 1 2306.31 13

156.61 12 572.106 1 2330.3 13

For the 2s2 2p2 — 2s2p3 transition array, values are available from the calculations of Bolotin

et al. [1] which include the important effects of configuration interaction only in a limited way.

Hence, fairly large uncertainties must be expected.

The values for several other transitions are taken from the self-consistent field calculations

(with exchange) by Weiss [2J. These calculations neglect the effects of configuration interaction

entirely. The average of the dipole length and the velocity approximations is adopted [2J.

References

[1] Bolotin, A. B., Levinson, I. B., and Levin, L. L, Soviet Phys.— JETP 2, 391-395 (1956).

[2] Weiss, A. W., private communication (1965).

145
Ne V. Allowed Transitions

No Transition

Array

Multiplet

x(A) Ei(cm J ) Ek(cm x ) gi gk ^;(108 sec

-1

)

fat S(at.u.) log gf Accuracy

Source

1 2s22p2 - 3p_3D° 571.04 756 175876 9 15 14 0.11 1.9 0.00 E 1 2s2p3 (1 uv)

572.336 1112 175834 5 7 14 0.094 0.89 -0.33 E Is 569.830 414 175905 3 5 10 0.084 0.47 -0.60 E Is 568.418 0 175927 1 3 7.7 0.11 0.21 -0.95 E Is 572.106 1112 175905 5 5 3.5 0.017 0.16 -1.07 E Is 569.759 414 175927 3 3 5.8 0.028 0.16 -1.07 E Is [572.03] 1112 175927 5 3 0.40 0.0012 0.011 -2.23 E Is

2 3p _ 3p° 482.15 756 208161 9 9 40 0.14 2.0 0.10 E 1 (2 uv)

482.987 1112 208157 5 5 30 0.10 0.83 -0.28 E Is 481.361 414 208157 3 3 10 0.036 0.17 -0.97 E Is 482.987 1112 208157 5 3 17 0.035 0.28 -0.75 E Is 481.281 414 208193 3 1 40 0.046 0.22 -0.86 E Is' 481.361 414 208157 3 5 10 0.059 0.28 -0.75 E Is 480.406 0 208157 1 3 13 0.14 0.22 -0.86 E Is

3 3p _ 3g° 358.93 756 279365 9 3 220 0.14 1.5 0.10 E 1 (3 uv)

359.385 1112 279365 5 3 120 0.14 0.83 -0.15 E Is 358.472 414 279365 3 3 73 0.14 0.50 -0.37 E Is 357.955 0 279365 1 3 25 0.14 0.17 -0.84 E Is

4

! D — >D° 416.198 30294 270564 5 5 110 0.28 1.9 0.14 E 1 (4 uv)

5

i D -ip° 365.594 30294 303812 5 3 150 0.18 1.1 -0.04 E 1 (5 uv)

6 2p2 - 0 Q 1Dh 173.932 30294 605231 5 3 230 0.063 0.18 -0.50 E 2

2p(

2 P°)3s (6 uv)

7 2P

2 - 3p_3J)° 143.32 756 698517 9 15 1200 0.61 2.6 0.74 D- 2

2p(2 P°)3c?

[143.34] 1112 698735 5 7 1200 0.51 1.2 0.41 D- Is [143.27] 414 698382 3 5 900 0.46 0.65 0.14 D- Is [143.22] 0 698231 1 3 670 0.62 0.29 -0.21 D- Is [143.42] 1112 698382 5 5 300 0.093 0.22 -0.33 D- Is [143.30] 414 698231 3 3 500 0.16 0.22 -0.33 D- Is [143.45] 1112 698231 5 3 32 0.0059 0.014 -1.53 D- Is

8 3p _ 3p° 142.61 756 701945 9 9 670 0.20 0.86 0.26 D- 2

[142.72] 1112 701765 5 5 500 0.15 0.36 -0.12 D- Is [142.52] 414 702074 3 3 170 0.051 0.072 -0.81 D- Is [142.66] 1112 702074 5 3 280 0.051 0.12 -0.59 D- Is [142.44] 414 702459 3 1 670 0.068 0.096 -0.69 D- Is [142.58] 414 701765 3 5 170 0.085 0.12 -0.59 D- Is [142.44] 0 702074 1 3 220 0.20 0.096 -0.69 D- Is

9 *D — 1 D° [151.42] 30294 690691 5 5 400 0.14 0.34 -0.17 D- 2

10 i D -ip° [148.78] 30294 702412 5 3 37 0.0073 0.018 -1.43 D- 2

11 J D — ‘F° [147.13] 30294 709956 5 7 1300 0.58 1.4 0.46 D- 2

12 0

un 1Oh [156.61] 63900 702412 1 3 690 0.76 0.39 -0.12 D- 2

146
Ne V. Allowed Transitions —Continued

No. Transition Multi- mA) Ei( cm *) Ek(cm *) gi gk Akt (W fik S(at.u.) log gf Accu- Source

Array plet sec

-1

) racy

13 2p2>s — 3 P° — ;1 D 2269.0 597083 641142 9 15 2.2 0.28 19 0.40 D ca

2p(2 P°)3p

2265.71 597523 641646 5 7 2.2 0.24 8.9 0.07 D Is 2259.57 596626 640868 3 5 1.7 0.21 4.7 - 0.20 D Is 2263.39 596254 640422 1 3 1.2 0.28 2.1 - 0.55 D Is 2306.31 597523 640868 5 5 0.52 0.042 1.6 -0.68 D Is 2282.61 596626 640422 3 3 0.89 0.070 1.6 -0.68 D Is [2330.31 597523 640422 5 3 0.056 0.0027 0.11 -1.86 D Is

14 2s2p23s —

2s2p2

( 4 P)3p

5 P — 5 D°

2232.41 698504 743285 7 9 0.20 0.019 0.96 -0.88 D ca , Is 2227.42 697935 742816 5 7 0.13 0.014 0.50 -1.17 D ca. Is 2224.12 697507 742455 3 5 0.069 0.0085 0.19 -1.59 D ca. Is 2256.05 698504 742816 7 7 0.063 0.0048 0.25 -1.47 D ca, Is 2245.48 697935 742455 5 5 0.11 0.0084 0.31 -1.37 D ca. Is 2236.29 697507 742210 3 3 0.15 0.011 0.24 -1.49 D ca, Is 2274.54 698504 742455 7 5 0.012 6.8 X 10"4 0.036 -2.32 D ca, Is [2257.9] 697935 742210 5 3 0.047 0.0022 0.080 -1.97 D ca. Is

Forbidden Transitions

The adopted values represent, as in the case of F IV, the work of Garstang [1] and Naqvi [2],

who independently have done essentially the same calculations and have arrived at very similar

results. For the selection of values, the same considerations as for F IV have been applied.

References

[1) Garstang, R. H., Monthly Notices Roy. Astron. Soc. Ill, 115-124 (1951).

[2] Naqvi, A. M., Thesis Harvard (1951).

NeV. Forbidden Transitions

No. Transition Multi- mA) Ei(cm *) Ek{cm 4

) gi gk Type of Aki( sec" 1 ) S(at.u.) Accu- Source

Array plet Transition racy

1 2p

2 - 2p2 3p _ 3p

[24.15 x 104

] 0 414 1 3 m 0.00129 2.00 B 1, 2

[8.990 x 104

] 0 1112 1 5 e 5.2 X 10- 9 0.091 C 1 [14.32 X 104

] 414 1112 3 5 m 0.00459 2.50 B 1, 2

[14.32 X 104

] 414 1112 3 5 e 1.10 X 10-9 0.197 C 1 2

CO 1 6

(1 F)

[3300.0] 0 30294 1 5 e 1.9 x 10-5 2.2 X 10-5 D 1 3345.9 414 30294 3 5 m 0.138 9.6 X 10-4 C 1, 2 3345.9 414 30294 3 5 e 6.2 x 10-5 7.7 X 10-5 D 1 3425.8 1112 30294 5 5 m 0.382 0.00285 C 1, 2 3425.8 1112 30294 5 5 e 3.9 x 10- 4 5.5 x 10~* D 1 3 3p_lS

[1575.2] 414 63900 3 1 rn 4.20 6.1 X 10~* C 1 [1592.7] 1112 63900 5 1 e 0.0068 4.1 x 10-5 D 1 4

(2 F)

2972 30294 63900 5 1 e 2.60 0.359 C 1

147
NeVI

Ground State ls2 2s22p 2Pi°/ 2

Ionization Potential 157.91 eV = 1274000 cm-1

Allowed Transitions

List of tabulated lines:

Wavelength [A] No. Wavelength [A] No. Wavelength [A] No.

122.49 9 440.404 5 571.00 6

122.69 9 440.46 5 637.90 7 138.39 8 440.60 5 638.19 7 138.64 8 451.843 4 641.26 7 399.82 3 452.745 4 641.55 7

401.14 3 454.072 4 2042.38 10

401.93 3 558.59 1 2055.93 10

403.26 3 562.71 1 2213.1 11 433.176 2 562.80 1 2229.1 11 435.649 2 570.77 6

The transition probabilities are taken from the self-consistent field calculations (with exchange)

by Weiss [1]. These calculations neglect the effects of configuration interaction entirely. The

average of the dipole length and velocity approximations is adopted [1].

Reference

[1] Weiss, A. W., private communication (1965).

NeVI. Allowed Transitions

No. Transition

Array

Multiplet

mA) Ei( cm 4

) £fc(cm x) gi gk ^wdO8 sec x

) /» S(at.u.) log gf Accuracy

Source

1 2s2 2p — 2p° 2J) 561.38 873 179004 6 10 17 0.14 1.5 -0.09 E 1 2s2p2 [562.80] 1310 178992 4 6 17 0.12 0.90 -0.31 E Is [558.59] 0 179021 2 4 15 0.14 0.50 -0.57 E Is [562.71] 1310 179021 4 4 2.8 0.013 0.10 -1.27 E Is

2 2p° __ 2g 434.82 873 230853 6 2 32 0.030 0.26 -0.74 E 1

435.649 1310 230853 4 2 21 0.030 0.17 -0.93 E Is 433.176 0 230853 2 2 11 0.031 0.087 -1.21 E Is

3 2p° _ 2p 401.66 873 249839 6 6 100 0.25 2.0 0.18 E 1

[401.93] 1310 250112 4 4 86 0.21 1.1 -0.08 E Is [401.14] 0 249292 2 2 69 0.17 0.44 -0.48 E Is [403.26] 1310 249292 4 2 34 0.041 0.22 -0.78 E Is [399.82] 0 250112 2 4 17 0.084 0.22 -0.78 E Is

4 2s2p2 -2p3 4 P- 4 S° 453.26 [101204] [321829] 12 4 82 0.084 1.5 0.00 E 1

454.072 [101600] [321829] 6 4 41 0.084 0.75 -0.30 E Is 452.745 [100954] [321829] 4 4 27 0.084 0.50 -0.47 E Is 451.843 [100513] [321829] 2 4 14 0.084 0.25 -0.77 E Is

148
Ne vi. Allowed Transitions — Continued

No Transition

Array

Multiple

\(A) Ei( cm ') Ek( cm ') gi gk /M10«

sec

-1

) fIk STat.u.) log gf Accuracy

Source

5

2 D _ 2 po 440.47 179004 406032 10 6 25 0.044 0.64 - 0.36 E 1

440.404 178992 406056 6 4 23 0.044 0.38 - 0.58 E Is 440.60 179021 405984 4 2 25 0.036 0.21 -0.84 E Is [440.46] 179021 406056 4 4 25 0.0074 0.043 -1.53 E Is

6

2 S _ 2 po 570.84 230853 406032 2 6 12 0.17 0.64 -0.47 E 1

[570.77] 230853 406056 2 4 12 0.11 0.43 -0.64 E Is [571.00] 230853 405984 2 2 12 0.056 0.21 -0.95 E Is

7 2p 2po 640.23 249839 406032 6 6 19 0.12 1.5 -0.15 E 1

[641. 26J 250112 406056 4 4 16 0.098 0.83 -0.41 E Is [638.19] 249292 405984 2 2 13 0.079 0.33 -0.80 E Is [641.55] 250112 405984 4 2 6.5 0.020 0.17 -1.09 E Is [637.90] 249292 406056 2 4 3.3 0.040 0.17 -1.09 E Is

8 2p-(1 S)3s 2 po 2g 138.55 873 722610 6 2 300 0.029 0.078 -0.77 E 1

[138.64] 1310 722610 4 2 200 0.028 0.052 -0.94 E Is [138.39] 0 722610 2 2 100 0.029 0.026 -1.24 E Is

9 2p-(»S)3d 2p° 2JJ 122.62 873 816405 6 10 1400 0.54 1.3 0.51 D 1

[122.69] 1310 816405 4 6 1400 0.48 0.78 0.29 D Is [122.49] 0 816405 • 2 4 1200 0.53 0.43 0.03 D Is [122.69] 1310 816405 4 4 240 0.054 0.087 -0.67 D Is

10 3s — (

x S)3p 2g 2po 2046.9 722610 771449 2 6 2.72 0.51 6.9 0.010 C 1

2042.38 722610 771557 2 4 2.73 0.342 4.60 -0.165 C Is 2055.93 722610 771234 2 2 2.68 0.170 2.30 - 0.469 C Is

11 3p — (*S)3d 2p° _ 2£) 2223.7 771449 816405 6 10 1.82 0.225 9.9 0.131 C 1

[2229.1] 771557 816405 4 6 1.80 0.201 5.9 - 0.095 C Is [2213.1] 771234 816405 2 4 1.54 0.226 3.30 - 0.344 C Is [2229.1] 771557 816405 4 4 0.302 0.0225 0.66 -1.046 c Is

Forbidden Transitions

Naqvi’s calculation [1] of the one possible transition in the ground state configuration 2p is the only available source. The line strength should be quite accurate, since it does not sensitively

depend on the choice of the interaction parameters.

Reference

[1] Naqvi, A. M., Thesis Harvard (1951).

NeVI. Forbidden Transitions

No. Transition

Array

Multiple x(A) Ei(cm *) Ek(cm ') gi gk Type of

Transition

Aki( sec

-1

) S(at.u.) Accuracy

Source

1 2p — 2p

2 p° _ 2p°

[76.32 X 103

] 0 1310 2 4 m 0.0202 1.33 B 1

149
Ne VII.

Ground State ls 2 2s 2

Ionization Potential 207.21 eV= 1671700 cm- 1

Allowed Transitions

The values are taken from the calculations of Veselov [1] who has used relatively simple wave

functions and neglected the effects of configuration interaction entirely. Hence, large uncertainties

are to be expected.

Reference

[1] Veselov, M. G., Zhur. Eksptl. i Teoret. Fiz. 19 , 959-964 (1949).

NeVII. Allowed Transitions

No. Transition

Array

Multiplet

mA) Ei( cm b Ek(cm b gi gk ^-(108 sec

-1

)

fik S(at.u.) log gf Accuracy

Source

1 2s2 i S -ip° 465.221 0 214952 1 3 58 0.57 0.87 -0.25 E 1

2s( 2 S)2p

2 2s2p — 2p

2 3p° _ 3p 561.59 [112208] [290273] 9 9 33 0.16 2.6 0.14 E 1

561.728 [112700] [290722] 5 5 25 0.12 1.1 -0.23 E Is 561.378 [111706] [289839] 3 3 8.2 0.039 0.21 -0.94 E Is 564.529 [112700] [289839] 5 3 14 0.040 0.37 -0.70 E Is 562.992 [111706] [289328] 3 1 32 0.051 0.28 -0.81 E Is 558.61 [111706] [290722] 3 5 8.6 0.067 0.37 -0.70 E Is 559.947 [111251] [289839] 1 3 11 0.15 0.28 -0.81 E Is

3 2s3s — 3§ __ 3p° 1987.0 [978300] [7028626] 3 9 2.3 0.41 8.1 0.09 D ca

2s(2 S)3p

1981.97 [978300] [1028755] 3 5 2.4 0.23 4.5 -0.16 D Is 1992.06 [978300] [1028499] 3 3 2.3 0.14 2.7 -0.38 D Is 1997.35 [978300] [1028367] 3 1 2.3 0.046 0.90 -0.86 D Is

Forbidden Transitions

Naqvi’s calculations [1| are the only available source. The results for the 3 P° — 3 P° transitions are essentially independent of the choice of the interaction parameters. For the 3 P°— ’P°

transitions, Naqvi uses empirical term intervals, i.e., the effects of configuration interaction

should be partially included.

Reference

[1] Naqvi, A. M., Thesis Harvard (1951).

150
NeVII. Forbidden Transitions

No. Transition Multi- X(A) E,(cm ') Ek(cm ') gi gk Type of Aki ( sec"') Slat.u.) Accu- Source

Array plet Transition racy

1 2s2p — W X

0 1 CO Xo

2s(2S)2p

[21.97 x 104

] 111251 111706 1 3 m 0.00170 2.00 B 1 [10.06 X 104

] 111706 112700 3 5 m 0.0132 2.50 B 1

2 3p° _ lpo

[964.31] 111251 214952 1 3 m 0.91 9.1 X 10- 5 C 1 [968.56] 111706 214952 3 3 m 100 0.0101 C 1 [977.98] 112700 214952 5 3 m 1.10 1.14 X 10~ 4 C 1

Ne VIII.

Ground State ls 2 2s 2 S m

Ionization Potential 239 eV = 1928000 cm' 1 (?)

Allowed Transitions

The extensive self-consistent field calculations including exchange by Weiss [1J are used for

this ion. Values have been calculated in both the dipole length and velocity approximations

and agree quite well. The dipole length values are chosen. For the 2s — 2p transition an experimental result from the lifetime measurement of Berkner et al. [2] is available and agrees very

well with Weiss’ value.

References

[1] Weiss, A. W., Astrophys. J. 138, 1262-1276 (1963).

[2] Berkner, K. H„ Cooper, W. L., Kaplan, S. N„ and Pyle, R. V., Phys. Letters 16, 35 (1965).

NeVIII. Allowed Transitions

No. Transition

Array

Multiple

mA) Fdcm 9 Ek(cm 9 g> gk A-i(108 sec

_ 9

fik S(at.u.) log gf Accuracy

Source

1 2s — 2p

2g _ 2p° 773.69 .0 129251 2 6 5.64 0.152 0.774 -0.517 B + 1, 2

770.402 0 129801 2 4 5.72 0.102 0.516 -0.692 B 4- Is 780.324 0 128152 2 2 5.50 0.0502 0.258 - 0.998 B + Is

2 2s — 3p

2g _ 2p° [88.134] 0 [1134634] 2 6 853 0.298 0.173 - 0.225 B 1

3 2p — 3s 2po 2g [103.05] 129251 [1099681] 6 2 462 0.0245 0.0499 -0.833 B 1

4 2p — 3d

2p°_2D [98.308] 129251 [ 1 146459] 6 10 2760 0.667 1.30 0.602 B 1

5 3s — 3p

2S _ 2 po

[2860.1] [1099681] [1134634] 2 6 0.696 0.256 4.82 -0.291 B 1

6 3p — 3d 2po_2D [8454.3] [1134634] [1146459] 6 10 0.0214 0.0382 6.38 - 0.640 B 1

151
Ne IX.

Ground State

j 5

2 ig

o

Ionization Potential 1 195 e V = 9641000 cm - 1 (?)

Allowed Transitions

The results of extensive non-relativistic variational calculations by Weiss [1] are chosen.

Values have been calculated in both the dipole length and dipole velocity approximations and agree

to within 1%, except for the 3p

1 P° — 3c? 1 D transition where agreement is not as good. The average

of the two approximations is adopted [’]•

Reference

['] Weiss, A. W., private communication (1964).

NeIX. Allowed Transitions

No. Transition

Array

Multiplet

x(A) Ei( cm ‘) Ek(cm’1

) gi gk ^fci(108 sec

_1

) fat S(at.u.) log gf Accuracy

Source

1 ls2 -

ls2p

>S - »P° [13.460] 0 [7429270] 1 3 8.87 X 104 0.723 0.0320 -0.141 A

2 ls2 -

\s3p

1S _ ip° [11.558] 0 [8652380] 1 3 2.48 X 104 0.149 0.00567 - 0.827 A

3 ls2s —

ls2p

l S -ip° [1901.5] [7376680] [7429270] 1 3 0.329 0.0535 0.335 -1.272 A

4 ls2s —

ls3p

is-tp0 [78.388] [7376680] [8652380] 1 3 1400 0.386 0.0996 -0.413 A

5 ls2p —

ls3d

tp°_ 1 D [82.010] [7429270] [8648630] 3 5 4180 0.703 0.569 0.324 A

6 \s3d —

ls3p

l D -lp° [26660]? [8648630] [8652380] 5 3 9.99 X 10-4 0.00639 2.80 -1.496 C +

7 ls2s —

ls2p

3g 3p° [1297.5] [7294740] [7371810] 3 9 0.980 0.0742 0.951 -0.653 A

8 ls2s —

ls3p

3g _ 3p° [74.527] [7294740] [8636540] 3 9 1460 0.365 0.269 0.039 A

9 ls2p —

ls3d

3p° 3J) [78.356] [7371810] [8648030] 9 15 4380 0.672 1.56 0.782 A

10 ls3p —

ls3d

3p° 3£) [8700.8] [8636540] [8648030] 9 15 0.0155 0.0294 7.58 -0.577 A

l

l

l

1

l

1

1

1

l

1

152
List of Recent Additional Material

(New material which would have been employed if received before cut-off date)

Spectrum References Spectrum References

He I D, H, K Nil L

N in C, L

Li I A, B N iv I N v B, E

Be I I Be II B Oi G, J On F

Bi C, L O III F

B ii L O iv C

Bin B O v I O vi B, E

Cl L

C ii C Fv C

C iii I Civ B, E Ne 1 D

Ne ii F

Ni G, J, L Ne vi C

References and Comments

A. Anderson, E. M., and Zilitis, V. A., Optics and Spectroscopy (U.S.S.R.) 16, 211-214 (1963). Li i. Semi-empirical calculations. Extensive tabulations, in fair agreement with our adopted values except for some of the

high-lying transitions, especially those of the resonance series where these values are as much as 50% lower.

B. Flannery, M. R., and Stewart, A. L., Monthly Notices Roy. Astron. Soc. 126, 387-392 (1963). Li i. Be ii, B iii, C iv, N v, O vi. Variational calculations. Good agreement with tabulated values, usually within 10—25%, except for cases where cancellation occurs. Some transitions are covered for which we have no values. Has been used for F vil. C. Nikitin, A. A., and Yakubovskii, O. A., Soviet Phys. -Doklady 9 , 409—411 (1964). B i, C ii, N iii, O iv, F v, Ne vi. Quantum mechanical calculations for forbidden transitions. Values are presented for quadrupole transitions in sp2 configurations. We have no values for these transitions. D. Bennett, Jr., W. R., Kindlmann, P. J., and Mercer, G. N., Applied Optics Supplement 2 of Chemical Lasers pp. 34-

57, (1965). He I, Ne I. Lifetime determinations. The results for Ne agree within 25% with the adopted values and with the experimental

results of Klose. The He results have been incorporated from an earlier paper which was referenced in this tabulation.

E. Berkner, K., Cooper III, W. S., Kaplan, S. N., and Pyle, R. V., Physics Letters 16, 35-36 (1965). C iv, N v, O vi. Lifetime determinations using the accelerator technique. Agrees with Weiss’ extensive calculations within the stated experimental and theoretical error limits. Has been used for F VII and Ne VIII. F. Froese, C., Phys. Rev. 137, A1644-A1648 (1965). O II, O III, Ne II. Self-consistent field calculations. Excellent agreement with the adopted values of Kelly, Mastrup, and Wiese, and the Coulomb approximation. Tends to be a few percent high in all cases except one and should be used in preference

to the Coulomb approximation.

G. Morse, F. A., and Kaufman, F„ J. Chem. Phys. 42, 1785-1790 (1965). N I, O I. Absorption of resonance radiation. The lower limit given for N I is considerably lower than the values from the arc experiment of Labuhn and the lifetime determination of Lawrence and Savage (See ref. L), but is' closer to the value

of Prag, Fairchild, and Clark (See ref. J). For Ol the values are in excellent agreement with the tabulated values. H. Pendleton, W. R., and Hughes, R. H., Phys. Rev. 138, A683-A687 (1965). He I. Lifetime determination. Supports the theory quite well and usually agrees with other referenced lifetime experiments

within the stated error limits.

I. Pfennig, H., Steele, R., and Trefftz, E., J. Quant. Spectrosc. Radiat. Transfer 5, 335-357 (1965). Be I, C III, N IV, O V. Self-consistent field calculations. Good agreement with tabulated values of Weiss; fair agreement with Kelly and

the Coulomb approximation, with better agreement for the visible lines where Kelly and the Coulomb approximation

have been averaged. Large divergences may occur where cancellation is significant.

J. Prag, A. B., Fairchild, C. E., and Clark, K. C., Phys. Rev. 137, A1358-A1363 (1965). N I, O I. Absorption of resonance radiation. For Nl, disagrees by as much as a factor of 3-4 (low) with the adopted values

(arc experiment by Labuhn) and with the lifetime experiment of Lawrence and Savage (See ref. L). Agrees well for O I but this is to be expected because of the choice of “best” values. K. Green, L. C., Kolchin, E. K., and Johnson, N. C,, Submitted for publication in the Transactions of the International Astronomical Union Symposium, #26 (1965). He I. Extensive variational calculations. Excellent agreement, within the assigned error limits, except for 1*S— 7, 8 'P. where the disagreement is 10—15% low. These new values should be used for l'S— 7, 8'P.

L. Lawrence, G. M., and Savage, B. D., (To be published in Phys. Rev.)

B I, II, C i, N I, II, III. Lifetime experiment using the phase shift method. Supports the adopted results of Weiss and Bolotin and the arc experiments of Boldt and Labuhn. The lifetimes tend to be somewhat longer than the adopted values.

153
.

' r>

'

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