SNe Workshop
26-28th, Dec, 2011, YITP, Kyoto, JAPANAn approach tothe construction ofEOS Database
Chikako Ishizuka(Tokyo Univ. of Sci.)

with
H. Suzuki(TUS), A. Ohnishi(YITP), T. Suda(NAOJ)

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SNe Workshop
26-28th, Dec, 2011, YITP, Kyoto, JAPANResearch History
1. Liquid-Gas Phase Transition in SN environment
2. Hyperon EOS Table for SNe
3. Database for Metal Poor Star Observations (SAGA)
Outline of Today’s Talk
Introduction: a brief review of nuclear EoS
Motivation: Why do we construct EoS Database?
Method: How to make the database....
Application of SAGA database system
Report: What are we doing now?
Summary

11年12月26日月曜日

A brief review of nuclear EoS
EoSs for Compact Objects
Takahara-Sato: an idealized one so
as to treat phase transition in
general form

SNe Workshop
26-28th, Dec, 2011, YITP, Kyoto, JAPAN

SN: dynamics,chemical evolution,nucleosynthesis....

Baron-Cooperstein-Kahana: thecompressible liquid drop model +a variant of the polytropic form
Helmholtz EOS: wo n ucl. force,i deal gas+Co u lo mb
Wolff-Hillebrandt EOS: 3D
Skyr m e Hartree-Fo ck
calcu latio n, stiff o ne
Lattimer-Swesty EOS: compressible
liquid dropSumiyoshi-Shen EOS: relativistic
mean field
Recent progress in EOS: Ishizuka,Nakazato, Furusawa, Togashi, G. Shen,Hempel, Newton, etc.
11年12月26日月曜日

EoS of nuclear matter:
There are lots of theoretical model toinvestigate various aspects of nuclear matterbut it’s still difficult to describe a single model,
there is not so much strong connection
between researchers who study each phase:-(A brief review of nuclear EoS

SNe Workshop
26-28th, Dec, 2011, YITP, Kyoto, JAPANConstraints on EOS from nuclear physics

S(ρ) [MeV]

40RIBF

30

124Sn+132Sd@340MeV(OMEG, K. Yoneda) 2014-20
10GSIMSU
1

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Mass Formula
Isobaric Analogue states
Pigmy Dipole Resonance
Heavy Ion Collision
Neutron Skin Thickness
etc...

23

ρB/ρ0Why do we construct EoS Database?

SNe Workshop
26-28th, Dec, 2011, YITP, Kyoto, JAPAN“Motivation”
Difficulties in making EOS tables
single model description for various nuclear phase
the EOS within Exp. & Obs.?
What EOS Database can do:
1. Comparison of EOSs by different theo. models
2. Conditions suggested by NS Obs./Nucl. Exp.
3. Evaluation of the most possible EOS in each phase
4. Finding the EOS by statistical method

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Why do we construct EoS Database?

SNe Workshop
26-28th, Dec, 2011, YITP, Kyoto, JAPAN

Major Published Papers about Nucl. EoS in this decade40

APS Journals:263+
Science Direct:41+
IOP Science:52+

30
20

Phys. Rev. CNPA/PLB
J. Phys. G/APJ

100

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20012003

2005

20072009

2011

Current situation of EOS studySNe Workshop
26-28th, Dec, 2011, YITP, Kyoto, JAPANHow to make the database....
- An application of SAGA database system Compiled Object
Nucl. Theo. EOS/HIC Exp. S0, L/NS Obs.

MethodDatabase: MySQL+CSV
Search&Plot web system: Perl/cgi (SAGA DB)
Compilation by handDatataken from papers (Fig./Tab./sentences)with graph-read soft at present, however in future
to be provided from the authors of published papers
11年12月26日月曜日

SNe Workshop
26-28th, Dec, 2011, YITP, Kyoto, JAPANHow to make the database....
- An application of SAGA database system The biggest difference between
SAGA and EOS DB is the data;
SAGA: EMP observational data
basically given by table format inpapers, no need to contact directly
to the authors.
EOS DB: Most of EOS data
given by lines in a figure,
we have to contact
to the authors
or perform calc. if we wantto obtain the specific values

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What are we doing now?
Start

Which info.
Things to do (now doing)
will be needed?
(not yet fixed) ✓web platform

Checking& Picking up
papers to compile(done)✓E-mail to authors✓compilation of EoS data✓arrange the data

Looking for the EoS
within the current knowledgeof Theo./Exp./Obs. data
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SNe Workshop
26-28th, Dec, 2011, YITP, Kyoto, JAPANGoal

What are we doing now?

SNe Workshop
26-28th, Dec, 2011, YITP, Kyoto, JAPANWe should check what the word like Energy(E, F, U), Esym(a4, S)
really means by data comparison.
To do that, we should adjust the units, check the reference
point, arrange the data format very carefully...

Symmmetric Energy S[MeV]200150HShen98
GShen-FSUgold-M2?
MiyatsuLattimer-Swesty(K=220)
Togashi} relativistic

100

50

0-50
1013

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1014
Baryon density nB[g/cc]

1015

What are we doing now?

SNe Workshop
26-28th, Dec, 2011, YITP, Kyoto, JAPANIn EOS DB, we classify each EOS according to-their theo. background such as framework
for “high/medium/low” densities and/or temperatures...(1),-“rel./non-rel.”...(2),-off course their framework such as LDM, HF, RHF etc...(3)Rel.
non-linear coupling
density dependent
point coupling
Brown-Rho scaling
quark-meson coupliNon Rel.
GognySkyrme※Classification of Theo. Approach by J. Zenihiro

Compiled data: Conditions such as Yp, T, nB, physics
constants, reference point for energy, K etc. from papers,
EOS raw data from authors, S/Esym derived from the data
Please tell me what kind of physical values you needto evaluate EOS for astronomical use! Gamma_s ...?
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Expected EOS discussion with EOS DB

SNe Workshop
26-28th, Dec, 2011, YITP, Kyoto, JAPAN

Using our classifications,
we may find unknown aspects of EOS models
on the web as shown in the previous slide,besides we can customize EOS for compact objects
within exp./obs. constraints by using EOS DB.
as a tool(Lattice QCD, HIC exp. and NS Obs.)+(Bayesian Analysis) = the most probable EOS
The EOS will allow us the following discussions;
1. Internal structure of NS from phenomenological
Lagrangian by fitting the above EOS(missing higher order effects or int. strength)
2. NS radius by OV eqn. and observed NS mass
physics
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APPENDIX

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What Database can do is ....

SNe Workshop
26-28th, Dec, 2011, YITP, Kyoto, JAPANSAGA -Stellar Abundances for Galactic Archeology Database(URL)http://saga.sci.hokudai.ac.jp/wiki/doku.php?id=start/ (UK Mirror)http://www.astro.keele.ac.uk/saga/wiki/doku.php

11年12月26日月曜日

What Database can do is ....

SNe Workshop
26-28th, Dec, 2011, YITP, Kyoto, JAPANSAGA -Stellar Abundances for Galactic Archeology Database(URL)http://saga.sci.hokudai.ac.jp/wiki/doku.php?id=start/ (UK Mirror)http://www.astro.keele.ac.uk/saga/wiki/doku.php

11年12月26日月曜日

What Database can do is ....

SNe Workshop
26-28th, Dec, 2011, YITP, Kyoto, JAPANSAGA -Stellar Abundances for Galactic Archeology Database(URL)http://saga.sci.hokudai.ac.jp/wiki/doku.php?id=start/ (UK Mirror)http://www.astro.keele.ac.uk/saga/wiki/doku.php

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What SAGA can do is ....

SNe Workshop
26-28th, Dec, 2011, YITP, Kyoto, JAPANSAGA -Stellar Abundances for Galactic Archeology Database(URL)http://saga.sci.hokudai.ac.jp/wiki/doku.php?id=start/ (UK Mirror)http://www.astro.keele.ac.uk/saga/wiki/doku.php

11年12月26日月曜日

List up EOSs

SNe Workshop
26-28th, Dec, 2011, YITP, Kyoto, JAPAN

Gathering EOS table
Summarising their theoretical backgrounde.g.) Physics constants, method...

ID: eosdb
PW: snmatter
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8 EOS tables (row data & codes)
2 EOS tables coming soon
4 Links to the other EOS tables

constituents,
detailed info. of phys. const.,
ref., EOS table data, manualcomments on the tablee.g.) characteristics
of used potential
and cal. methods etc.
11年12月26日月曜日

List up EOSs

SNe Workshop
26-28th, Dec, 2011, YITP, Kyoto, JAPANTools for SN simulations- Add lepton contributions, interpolate EOS tables- Figure out EOSs coming soon
- Thomas-Fermi config. of inhomo. phase (S. Yamamuro)- Transform EOS tables from (Ye, rhoB, T) to (Ye, S, T)

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List up EOSs

Still under construction

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SNe Workshop
26-28th, Dec, 2011, YITP, Kyoto, JAPANSNe Workshop
26-28th, Dec, 2011, YITP, Kyoto, JAPAN

11年12月26日月曜日

SNe Workshop
26-28th, Dec, 2011, YITP, Kyoto, JAPAN

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SNe Workshop
26-28th, Dec, 2011, YITP, Kyoto, JAPAN

11年12月26日月曜日

Lines : Skyrme HF Calc
Blue region:: Murakami’s exp.
constraints on S0 and L