cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57780/esa-ry91ijd
title: 0620007

description: The presence of excess emission from the Coma cluster above 10 keV has been claimed from BeppoSAX and RXTE observations. However an independent analysis of the same BeppoSAX data by another group still casts doubts on this result. Confirmation of this result is of prime importance to study the population of relativistic electrons to measure directly the magnetic field in the cluster and to understand the state of the gas in the cluster. Existing INTEGRAL data (1 Ms) allowed us to to identify a region South-West of the cluster core in excess compared to the 1-10 keV profile. We found that the position of the excess coincides with the 1.4 GHz radio peak which strongly suggests that the emission from this region is non-thermal. However it is not yet possible to exclude the possibility that the emission is due to very hot thermal gas. Therefore we propose another 1 Ms INTEGRAL observation of the Coma cluster that will allow usto detect the source up to 80 keV in order to reveal the nature of the excess. Moreover we will be able to better characterize the morphology of the cluster above 18 keV and study more extensively the high-energy emitting region discovered in existing INTEGRAL data which is a unique use of INTEGRAL?s imaging capabilities. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-s1ay23p
title: 0299845

description: Galactic Plane Survey for AO 02 and Pattern 45
DOI: 10.57780/esa-s1cmetg
title: 1320027

description: We propose to study the long-term evolution of the CRSF centroid energy in three persistentaccreting pulsars showing a well measurable cyclotron line and for which a considerable record of previousCRSF measurements exists: Her X-1 1H 1538522 and Cen X-3. Such a long-term CRSF evolution is a newlydiscovered phenomenon which has so far only been observed in Her X-1 with an indication of an evolution alsopresent in 1H 1538522. The variability is most probably related to the evolving configuration of the magneticfield and of the mounds formed by matter accumulated in the polar regions of the accreting neutron star.The proposed measurements of the CRSF energy in 1H 1538522 and Cen X-3 will allow us to verify and toconstrain its long-term trend in these sources. In case of Her X-1 the new measurements will allow us to followthe on-going decay of the CRSF energy and to search for jumps in its behavior. Such jumps are most probablyassociated with catastrophic re-adjustments of the accretion mound back to the unperturbed configuration. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-s30qljw
title: 0399802

description: Galactic Plane Survey for AO 03 and Pattern 02
DOI: 10.57780/esa-s7z7ux3
title: 1660001

description: INTEGRAL Periodic  monitoring of the  Crab every four revolutions
DOI: 10.57780/esa-s8rtd1s
title: 2070006

description: TOO Observtion of GX 5-1Coordinated observation with IXPE.
DOI: 10.57780/esa-s9gs61h
title: 0299921

description: Galactic Centre Deep Exposure for AO 02 and Pattern 21 Cycle 1
DOI: 10.57780/esa-saxowu0
title: 0532000

description: We propose a deep 6 Ms exposure of the Cygnus X region as a multi-year INTEGRAL key program in order to answer a number of central questions related to stellar nucleosynthesis and positron production and diffusion. Cygnus X is the most nearby massive star forming region in our Galaxy housing several tens of OB associations and massive star clusters at a distance of approximately ~1.5 kpc. The proximity of the region brings gamma-ray line emission from individual star clusters in reach of the SPI telescope and the spatial extent of ~10 degrees of Cygnus X allows to resolve their contributions. The proposed exposure builds on existing observations of roughly ~4.6 Ms of this region. We present analysis results based on the existing observations and illustrate that an additional 6 Ms exposure will allow for a breakthrough in nucleosynthesis and positron annihilation science. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-sbje3n3
title: 0820022

description: Thermonuclear bursts in systems accreting pure helium reveal  the structure of the neutron star (NS) interiors. In the absence of heating from steady H-burning between bursts the burst properties (the burst recurrence times versus the accretion rate) are much more  sensitive to the thermal properties and processes in the NS crust and core.  Interestingly burst ignition models predict significantly longer burst recurrence times than observed for such sources. Our recent analysis of one such source 4U 1728-34 confirms this  discrepancy  suggesting the fractional covering  of the accreted fuel on the  NS surface as a possible solution. However  a large scatter in our data indicates that other processes such as steady burning of He and fuel storage and mixing due to shear instabilities may also be important. To distinguish between these possibilities the    precise  accretion rate measurements in a wide multi-instrument energy band are crucial as they will enable to detect  additional both soft and hard spectral components outside the sensitivity band of individual detectors.  We propose to observe 4U~1728-34 with INTEGRAL and XMM-Newton simultaneously in order to measure the burst recurrence time and X-ray flux (and hence the accretion rate) in a much broader band than previous observations.  The results of this study will have profound consequences  for facilitating future burst ignition modelling.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-sc6g5ys
title: 1770015

description: INTEGRAL TOO observartions of SGR 1935+2154
DOI: 10.57780/esa-scofbx1
title: 8860310

description: OMC FF sequence ISOC V10 onwards: sequence of ff measurements with LED on/off followed by a DC cal.
DOI: 10.57780/esa-sfevejg
title: 1470009

description: Hidden TOO on GW event at 41.07 -45.49
DOI: 10.57780/esa-sfxfvz1
title: 1970005

description: INTEGRAL ToO Observation of GS 1826-24
DOI: 10.57780/esa-sghs4ae
title: 8860038

description: Empty field Backup A calibration observation in August 2003.
DOI: 10.57780/esa-sgok0bb
title: 0110009

description: The prime objective of this proposal is to perform INTEGRAL pointed observations of the persistent Vela region.All observations contained in this proposal are part of the INTEGRAL Guaranteed Time Programme (Core Programme). [truncated! Please see actual data for full text]
DOI: 10.57780/esa-sitt6dr
title: 8860073

description: Crab at 14.5 deg spring/05
DOI: 10.57780/esa-sm5e3oy
title: 8860021

description: This proposal consists of two scans. The first scan places the crab at different off-axis positions along the +y axis the 2nd scan places the Crab at the same off-set positions along the +(y+45 degree)-axis. The scan has the goal to calibrate the instrument off-axis properties along the +y axis. offset from onaxis are in degrees: 0.5 1.0 1.5 2.4 3.4 4.9azimuth angles:  0. and 45 degreeNote the scan will be executed from 4.9->0.5 along the y-axis and then from 0.5->4.9 along the y+45 degree axis. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-spc6wgt
title: 1720012

description: Back in 1997 McConnell et al. searched for 2.2 MeV emission from neutron capture processes with COMPTEL and reported one 3.7 sigma signal in their full sky survey. As exceptional as this discovery was as surprising it still is that no targeted follow-up observation of this source with a gamma-ray telescope has been performed up to now. In addition the only suggested counterpart to this 2.2 MeV signal is very peculiar and INTEGRAL/SPI is the only instrument capable of clarifying this 20 year old puzzle.The most promising candidate is claimed to be RE J0317-853 a fast rotating extremely hot and highly magnetised binary white dwarf (WD). This claim was barely investigated further only trying to connect radio emission as a possible proof of particle acceleration and flaring activity. In general the properties of such exceptional objects and extreme environments are widely debated.A detailed spectral analysis of the 2.2 MeV line from RE J0317-853 can confirm its correspondence to the signal found by McConnell et al. (1997). Furthermore this will provide basic insight in fundamental processes concerning X-ray binary feedback in WD systems. This includes neutron production and accretion in the presence of large magnetic fields as well as recombination physics in extreme environments. RE J0317-853 is the closest high-B WD only 27 pc awayat (l/b) = (299.85/-30.68) and the most massive WD known. This makes it also one of the best candidates to study a possible progenitor of a type Ia supernova in a double-degenerate WD-merger scenario. Its properties especially the extreme values of temperature magnetisation rotation and mass make it to one of the most promising INTEGRAL/SPI high-energy targets.We propose a dedicated 1.5 Ms observation of this serendipitous 2.2 MeV source with INTEGRAL/SPI in addition to the currently available not solar-flare contaminated or zenith-angle constrained 500 ks. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-sqgpc62
title: 0220133

description: As a follow-up of the 2 Msec observation in AO-1 we propose a newdeep 2 Msec exposure of the field of the GalacticCenter. Observations of the GC region make the best use of the uniqueINTEGRAL capabilities and undoubtedly are the most efficient investment of its preciousobserving time. With the proposed observation the total INTEGRALexposure of the GC field will exceed 5 Msec by the end of AO-2doubling the number which will be achieved after completion of the AO-1.  As confirmed by the preliminary analysis of the first ~0.5 Msecof the AO-1 observations the guaranteed science includes detailedstudy of the diffuse Gamma-ray line and continuum emissionmonitoring of Sgr A* and of dozens of X-ray binaries study oftransient phenomena. Should this proposal beaccepted the data will be made available during the proprietaryperiod to scientists of major astrophysical institutions of Russia. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-stmiqmq
title: 1270004

description: Public ToO observation of GS 1354-645 together with Swift SALT ATCA.
DOI: 10.57780/esa-stodbha
title: 8860268

description: OMC FF sequence ISOC V10 onwards: sequence of ff measurements with LED on/off followed by a DC cal.
DOI: 10.57780/esa-su100up
title: 0120125

description: The detection of nuclear decay emission at 1157 keV associated with the decay of Ti-44 from Cas Aby Comptel came as a surprise as its flux implies an initial Ti-44 mass in excess of 2E-4 solar masses higher than supernova model predictions.Observations by other instruments mainly aimed at the other two lines produced by the decay of T-44 at 68 keV and 78 keV  failed to detect Ti-44 emission with upper limits close or even below the Comptel detection limit. Although the detection of 1157 keV line emission by Comptel seems firm the flux level needs clearly an independent confirmation.We propose here to observe Cas A with INTEGRAL for 2500 ks which is sufficient to observe all three nuclear decay lines simultanuously at a 4sigma level even if the actual flux for each line isa factor 2 below the flux observed by Comptel.A reliable flux estimate will determine the initial Ti-44 mass which will strongly constrain nucleosynthesis models of the explosion that created Cas A an alleged type 1b supernova. This will shed new lights on the mass-cut (determining the size of the stellar remnant) explosion energy and explosion assymetries.In addition with a 2500 ks observation of Cas A SPI and IBIS will allow us to observe the shape of the hard X-ray continuum up to 100 keV. This may finally settle the issue whether the emission is due to synchrotron radiation or non-thermal bremsstrahlung. Confirmation of either mechanism will provide important information on shock acceleration processes. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-swclwvd
title: 0299834

description: Galactic Plane Survey for AO 02 and Pattern 34
DOI: 10.57780/esa-sws1akg
title: 1120026

description: PSR B1259-63 is a gamma-ray binary comprising a radio pulsar in orbit around a Be star. To study the hard X-ray activity after the next periastron passage happening within AO11 perhaps concurrent with a new GeV flare we propose a series of INTEGRAL observations with total exposure of 800 ks. These observations will provide a unique chance to understand the hard X-ray emission after periastron and shed light on the nature of the possible GeV flare. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-sxcn7o3
title: 1420020

description: Rotation powered pulsars are known to produce outflows in the form of wind nebulae and jets and are recognised as important probes of relativistic shocks and particle acceleration. When the pulsar responsible for these outflows is travelling at supersonic linear velocity the entire system strongly interacts with the surrounding medium. The properties of these high velocity PWN systems departs significantly from their more common zero/low-velocity cousins. In particular recent X-ray observations are revealing -against any previous expectation- parsec-scale jets produced by some of the highest velocity pulsars. These jets develop unbent almost perpendicularly to their direction of motion. Although several hypotheses have been explored at present the launching mechanism at the origin of these exceptional jets is still unclear. The INTEGRAL source IGR J11014-6103 (in the Carina region) hosts the brightest and most elongated of these jets which extends helicoidaly over 15 pc and is accompanied by a straight 1pc counter-jet.Here we propose a 4 Msec observation of IGR J11014-6103 with INTEGRAL (to be performed in the next 2 AOs) to study the hard X-ray spectral properties of the system and in particular to constrain the hard X-ray spectral turn-over and consequently the maximum energy of the injected electrons. The spectral turnover is expected in the range 80-200 keV and therefore IBIS/ISGRI is the only detector currently able to provide such a constraint. This observation will complete a large multi-wavelength campaign that our group is performing on the source from radio up to hard X-rays. The data will allow us to firmly establish the average intensity of the magnetic field responsible for the synchrotron radiation. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-sy7tnsu
title: 0520047

description: We propose to obtain the first hard X-ray/soft gamma-ray image of M31 with INTEGRAL. The proposed 400 ks INTEGRAL observation will image the whole M31 and will resolve isolated bright point sources in the disk. In the bulge although sources are unresolved with INTEGRAL we can estimate the point source contribution using archival Chandra and XMM-Newton data and study the origin of hard X-rays recently detected with Suzaku. M31 also houses a very luminous (5e38 erg/s) globular cluster Bo375. IBIS will allow us to study the hard X-ray spectrum of the source and JEM-X can study the soft X-ray variability providing important information about the nature of the source. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-sz07x4q
title: 8860248

description: OMC FF sequence ISOC V10 onwards: sequence of ff measurements with LED on/off followed by a DC cal.
DOI: 10.57780/esa-t0hqxdr
title: 1420032

description: INTEGRAL observations around the region (l b) = (50-3)
DOI: 10.57780/esa-t12mqu2
title: 1770001

description: For the first time a periodicity has been found in arepeating FRB.The detection of a 16.35?0.18 day periodicity from the repeating FRB 180916.J0158+65 by the Canadian Hydrogen Intensity Mapping Experiment Fast Radio Burst Project (CHIME/FRB) has a strong impact on our knowledge of FRBs. So far no X-ray nor gamma-ray counteparts of FRBs have beendetected. The next burst activity for this source is predicted to happen from 2020-02-03 00:51 to 2020-02-07 22:35 with a peak around 2020-02-05 07:48. With this ToO we aim at finding a high energy counterpart of this burst activity characterizing for the first time the spectral and variability properties of such event. A detection at X-rays/soft gamma rays will allow to understand the nature of this class of FRB and to put a firm constraint on possible physical models invoked to explain the mysterious FRB phenomenon. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-t1eiap7
title: 0399840

description: Galactic Plane Survey for AO 03 and Pattern 40
DOI: 10.57780/esa-t2cunj4
title: 8860237

description: Crab 2011: IBIS Mask Corner rev 1019
DOI: 10.57780/esa-t36tbd5
title: 1620026

description: The Perseus OB2 association is the second closest (300 pc) massive star region and is about 6 Myr old. Among its stellar content of approximately 20000 stars there are 17 high-mass stars of spectral type B. Since the birth of the stellar group already the most-massive stars exploded and enriched the surrounding interstellar medium with freshly-produced elements. This is direct evidence for ongoing nucleosynthesis in the Milky Way. One of the most important tracers of this chemical enrichment is the beta+-unstable isotope 26Al. The decay of radioactive 26Al nuclei as observed by gamma-ray line at 1808.63 keV provides a unique tool to study the effects of massive stars onto their environment the feedback scenario. This is only possible with SPI aboard INTEGRAL.Previous 26Al studies focussed on other prominent massive star regions such as Cygnus Orion and Scorpius Centaurus. These associations are well studied in kinematics (Doppler-shift and -broadening) and 26Al content (flux mass). However the morphology of the 26Al emission cannot accurately be modelled there as either the signals are too weak or the galactic background emission is glaring into the desired region. Per OB2 is located in the galactic anti-centre and below the galactic plane probably associated with the Gould Belt and thus predestinated for 26Al observations.In this proposal we ask for a 3 Ms two-year observation campaign towards the direction of Per OB2 in order to:1) validate and refine the previous measurements with COMPTEL and SPI (2.9 Ms) 2) measure the kinematics of the 26Al ejecta from the congeries of Per OB2 stars and supernovae 3) determine the spatial distribution of 26Al with respect to the Perseus supershell 4) search for 60Fe gamma-rays at 1173 and 1332 keV from a spatially distinguished OB association 5) provide another measure of the 1.8 MeV foreground emission towards a galactic-wide picture. [truncated! Please see actual data for full text]
DOI: 10.15468/dl.ce67bd
title: Occurrence Download

description: A dataset containing 300 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Macrourus whitsoni (Regan, 1913)"
 ]
}

 The dataset includes 300 records from 28 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0008429-250310093411724/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.57780/esa-t8ec2g4
title: 8860149

description: Crab-2007 Spring: SPI 5x5 pattern
DOI: 10.57780/esa-t8pfuvp
title: 0430000

description: This is the Key Programme proposal for AO-4 observing the galactic centre.
DOI: 10.57780/esa-t9iapge
title: 1520022

description: We ask for the continuation of the INTEGRAL Key Programme observations of the area of the Galaxy bounded by -20 <= l <= +20 and -15 <= b <= +15 with a total of 2 Msec of observations per AO. The aim is to study the inner region of the Galaxy including the hard X-ray variability of Sgr A* and to enable significant serendipitous science in the Galactic center region. We do not ask for data rights for any of the sources except for the Galactic Center. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-tbyb2u0
title: 1420003

description: We request a 2-year INTEGRAL program in AO-12 and AO-13 for 4 Ms observation in each year centred on 3C273 in order to obtain the deepest extragalactic wide field observation ever performed in the hard X-rays. The INTEGRAL mission provides us with the best wide angle imaging capabilities in the hard X-ray band above 20 keV available to date. In view of upcoming AOs and future missions we feel that it is time to think about legacy projects which will have a lasting impact on our knowledge of phenomena in the Universe far beyond the missions duration. Such a legacy can be the ultra-deep extragalactic field (UDF) which we propose to observe in the Virgo region centered on 3C273. Together with already exisiting data on this field INTEGRAL will thus achieve 21.5 Msec on this field and a detection sensitivity of 1.5e-12 erg/cm**2/sec for a 5-sigma point source significance in IBIS/ISGRI.This will derive around 100 source detections in total on this field out of which a significant fraction might be Compton thick and/or not previously known in the energy range below 10 keV. The scientific goals of this proposal are manifold: determining the luminosity function of AGN out to a redshift of about z=0.1 resolving 10% of the Cosmic X-ray Background (CXB) deriving an independent measurement of the CXB directly from the IBIS/ISGRI data performing a population study of AGN at hard X-rays in the low and high-luminosity domain and extending the spectral monitoring on 3C273 and of several Seyfert galaxies in the field. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-td4rxbj
title: 0420056

description: yWe propose to obtain up to 6 deep exposures of a black hole transientin outburst as part of a global simultaneous multi-wavelengthcampaign.  Each exposure should be 130 ksec in duration (1/2 orbit).Curvature and breaks in the high energy spectra of black holes areessential for comparing gamma-ray and X-ray states and forrevealing the relationship between hard X-ray emission and jets.  Itis now clear that deep exposures are needed to reveal diagnosticcurvature in the high energy spectra of black holes.  To ease theburden of these observations on INTEGRAL and the community andto generate broad interest in this science we request that thedata be made public immediately. [truncated! Please see actual data for full text]
DOI: 10.57780/esa-tdxeovg
title: 0920016

description: The mass transfer and accretion mechanisms in SFXTs are key questions to be answered in order to place the SFXTs in the wider context of HMXB systems. Current theories centre on mass transfer via isotropic but inhomogeneous (`clumpy) winds but some systems also show evidence of disk-like structures around the supergiant analogous to those seen in Be/X-ray binaries. We propose a campaign of periastron observations of 7 systems with known ephemeris using both XMM and INTEGRAL to measure the instantaneous accretion rate emission spectrum and periodic signals generated around and on the neutron star. Now that the orbital parameters of these SFXT are well-determined targeted continuous broad-band observations around periastron provide us with the best opportunity to use the (assumed) neutron star as a direct probe of the circumstellar wind environment. To achieve the goals outlined in this proposal we request ~1.7 Ms of INTEGRAL observations complemented with 140 ks of simultaneous XMM-Newton observatons.  [truncated! Please see actual data for full text]