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J/PAZh/43/859       ISGRI type I X-ray bursts (2003-2015)    (Chelovekov+, 2017)

Type I X-ray bursts detected by the JEM-X telescope onboard the INTEGRAL observatory in 2003-2015. Chelovekov I.V., Grebenev S.A., Mereminskiy I.A., Prosvetov A.V. <Pis'ma Astron. Zh. 43, 859 (2017)> =2017AstL...43..781C =2017PAZh...43..859C (SIMBAD/NED BibCode)
ADC_Keywords: X-ray sources Keywords: X-ray bursts - X-ray bursters Abstract: We present the results of our analysis of the JEM-X/INTEGRAL data obtained from January 2003 to January 2015 aimed at searching for type I X-ray bursts from known and new bursters. Such bursts are caused by thermonuclear explosions on the surface of a neutron star. We have searched for bursts in the records of the count rate of the JEM-X detectors in the 3-20keV energy band. We have separately reconstructed and analyzed the light curves of 104 X-ray bursters known to date based on the JEM-X data. A similar search for bursts was previously carried out in the 15-25keV data from the IBIS/ISGRI telescope onboard the INTEGRAL observatory obtained in 2003-2009. We have continued to analyze the data from this telescope up until the observations in January 2015. The joint catalog of bursts detected by the two instruments includes 2201 events; their basic parameters are given. The large size of the sample of bursts makes it one of the most representative of the existing one and allows various statistical studies of bursts to be performed. In particular, we have constructed the dependence of the mean rate of type I bursts from bursters on the luminosity (accretion rate), revealed an appreciable burst rate from sources with a near-Eddington luminosity, and investigated the population of multiple bursts with a recurrence time much shorter than the time it takes for a critical mass of matter required for the initiation of an explosion to be accumulated on the neutron star surface. Almost all of the detected bursts are associated with already known bursters,we have found only one previously unknown burster, IGRJ17380-3749, in the archival data, and one more known, but poorly studied source, AX J1754.2-2754, has been identified as a burster. Several similar sources have previously been identified as bursters directly during the INTEGRAL observations. Description: Already 103 X-ray bursters1 are known to date. Table 2 gives the list of X-ray bursters from which type I bursts were detected during our investigation. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 53 103 Parameters of known X-ray bursters based on publicaly available publications (23-Oct-2017) table2.dat 82 833 Catalog of type I X-ray bursts detected by the ISGRI detector for 24 sources catalog.dat 157 2201 *Catalog of type I X-ray bursts detected by IBIS/ISGRI and JEM-X telescopes onboard INTEGRAL for 55 sources
Note on catalog.dat: The catalog is based on the analysis of 3-20keV JEM-X and 15-25keV ISGRI detector lightcurves and 3-20keV JEM-X light curves of 103 known X-ray burtsers all with 5s time bin. Last updated: October 16 2017
See also: J/ApJ/607/L33 : First IBIS Catalog: 20-100keV (Bird+, 2004) J/ApJ/636/765 : Second IBIS/ISGRI soft gamma-ray survey catalog (Bird+, 2006) J/ApJS/170/175 : Third IBIS/ISGRI soft gamma-ray survey catalog (Bird+, 2007) J/ApJS/186/1 : The 4th IBIS/ISGRI soft gamma-ray survey catalog (Bird+, 2010) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 22 A22 --- Source Source name 25- 30 F6.2 deg RAdeg Right ascension (J2000.0) 31 A1 --- --- [,] 33- 38 F6.2 deg DEdeg Declination (J2000.0) 41- 46 F6.2 kpc Dist Distance 48- 53 F6.3 10-22cm-2 NH Hydrogen column density
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq Burst number 5- 21 A17 --- Source Source name 22- 31 A10 "DD.MM.YYYY" Observation date (UTC) 33- 40 A8 "h:m:s" Obs.time Observation time (UTC) 42- 43 I2 s DurI Duration ISGRI burst parameters 45- 48 F4.1 Crab FluxI Peak flux ISGRI burst parameters 50- 52 I3 s DurJ ? Duration JEM-X burst parameters 54- 57 F4.2 Crab FluxJ ? Peak flux JEM-X burst parameters 59- 70 F12.6 h TLB ? Time since last burst from the source 72- 82 F11.6 d JD TimeB Burst time (JD-2450000)
Byte-by-byte Description of file: catalog.dat
Bytes Format Units Label Explanations
1- 4 I4 --- Seq Burst sequential number 6- 26 A21 --- Source Source Name 28- 43 A16 --- SCW SCW identified 45- 54 A10 "YYYY-MM-DD" Observation date (UTC) 56- 63 A8 "h:m:s" Obs.time Observation time (UTC) 65- 67 I3 s DurI Duration, ISGRI burst parameters 69- 71 F3.1 Crab pctI Peak countrate, ISGRI burst parameters 73- 75 I3 s DurJ ? Duration, JEM-X burst parameters 76- 80 A5 --- n_DurJ [ISGRI ] ISGRI for detected by ISGRI 82- 87 F6.1 ct/s pctJ ? Peak countrate, JEM-X burst parameters 89- 93 F5.1 ct/s e_pctJ ? rms uncertainty on pctJ 94- 98 A5 --- n_pctJ [ISGRI ] ISGRI for detected by ISGRI 99-103 F5.2 10-11W/m2 FluxP ? Peak burst 3-20keV JEM-X flux (10-8erg/cm2/s) 105-109 F5.2 10-11W/m2 e_FluxP ? rms uncertainty pn FluxP 110-114 A5 --- n_FluxP [ISGRI ] ISGRI for detected by ISGRI 116-121 F6.1 10-13W/m2 Fluxp ? Preburst 3-100 keV JEM-X flux (10-10erg/cm2/s) 123-126 F4.1 10-13W/m2 e_Fluxp ? rms uncertainty pn Fluxp 127-131 A5 --- n_Fluxp [ISGRI ] ISGRI for detected by ISGRI 133-139 F7.1 h Tsb ? Time since last burst from the source 141-151 F11.6 d TimeP Burst peak time (IJD, JD-2450000) 153-157 F5.1 10+31J Fluence Burst fluence (1038erg)
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(End) Patricia Vannier [CDS] 20-Dec-2017
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