J/ApJ/744/141ivo://CDS.VizieR/J/ApJ/744/141doi:10.26093/cds/vizier.17440141CDSBhat P.N.Briggs M.S.Connaughton V.Kouveliotou C.van der Horst A.J.,Paciesas W.Meegan C.A.Bissaldi E.Burgess M.Chaplin V.Diehl R.,Fishman G.Fitzpatrick G.Foley S.Gibby M.Giles M.M.Goldstein A.,Greiner J.Gruber D.Guiriec S.von Kienlin A.Kippen M.McBreen S.,Preece R.Rau A.Tierney D.Wilson-Hodge C.2017-10-12T13:00:39Z2013-08-05T07:15:02ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frgamma-ray-astronomyThe light curves of gamma-ray bursts (GRBs) are believed to result from internal shocks reflecting the activity of the GRB central engine. Their temporal deconvolution can reveal potential differences in the properties of the central engines in the two populations of GRBs which are believed to originate from the deaths of massive stars (long) and from mergers of compact objects (short). We present here the results of the temporal analysis of 42 GRBs detected with the Gamma-ray Burst Monitor onboard the Fermi Gamma-ray Space Telescope. We deconvolved the profiles into pulses, which we fit with lognormal functions. The distributions of the pulse shape parameters and intervals between neighboring pulses are distinct for both burst types and also fit with lognormal functions. We have studied the evolution of these parameters in different energy bands and found that they differ between long and short bursts. We discuss the implications of the differences in the temporal properties of long and short bursts within the framework of the internal shock model for GRB prompt emission.2012ApJ...744..141Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/744/141CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/199/18 : The Fermi GBM catalog (Paciesas+, 2012)J/A+A/525/A53 : GBM parameters for detected FERMI bursts (Guetta+, 2011)J/A+A/530/A21 : Spectral properties of 438 GRBs (Nava+, 2011)J/A+A/385/377 : 319 gamma-ray bursts BATSE triggers (Quilligan+, 2002)J/ApJS/126/19 : BATSE gamma-ray burst spectral catalog. I. (Preece+, 2000)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/744/141https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/744/141http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/744/141https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/744/141https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/744/141http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/744/141GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/744/141/table1 (List of GRBs, chosen for the present analysis)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/744/141/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/744/141/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/744/141/table1?GETtext/xml+votable180.050000true176.8-60.20.0055555555555555566/2563 3318 4236 5051 5907 6152 7332 7789 7886 7890 7987 11563 12170 13215 13559 16282 20077 20800 20941 22004 23523 23949 24113 25552 25710 27961 27962 29019 31270 33813 33961 34917 36444 37628 37910 38362 39594 40400 43498 43891 47031 47438https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/744/141?format=asciiGamma-raydefaultJ/ApJ/744/141/table3Shape parameters of pulses fitted to full energy light curves of GRBsIDTrigger identificationmeta.id;meta.mainlongrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintbin[0.001/0.15] Bin widthstime.intervalfloatDetDetector (BGO or NaI)meta.idcharNum[1/32] Pulse numbermeta.idintAmp[0.00967/1980] Pulse amplitude (number/bin)src.var.amplitudedoubleTime[-13.1/141] Time since triggerstime.intervaldoubleRise[3.7e-07/22.4] Rise timestime.epochdoublee_RiseError in Risesstat.errordoubleDecay[0.00012/174] Decay timestime.intervale_DecayError in Decaysstat.errordoubleFWHM[8.82e-05/51.6] Pulse Full-Width at Half-Maximumssrc.var.pulsedoublee_FWHM[1.1e-05/21] Error in FWHMsstat.error;phys.angSizedoubleJ/ApJ/744/141/table4Shape parameters of pulses fitted to GRB light curves in different energy rangesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDTrigger identificationmeta.id;meta.mainlongE[12.5/1016.1] Mean energykeVphys.energyfloatNum[1/34] Pulse numbermeta.idintAmp[0.00222/1160] Pulse amplitude; number/binsrc.var.pulsedoubleTime[-16.6/291] Time since triggerstime.intervaldoubleRise[0.00101/44.3] Rise timestime.epochdoublee_RiseError in Risesstat.errordoubleDecay[0.00101/124] Decay timestime.intervale_DecayError in Decaysstat.errordoubleFWHM[0.0014/88.6] Pulse Full-Width at Half-Maximumssrc.var.pulsedoublee_FWHM[0/53] Error in FWHMsstat.error;phys.angSizedoubleJ/ApJ/744/141/table1List of GRBs, chosen for the present analysisGRBGRB name (YYMMDDA)meta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintType"long" or "short" GRBsrc.classcharIDTrigger identification as in Paciesas et al., 2012, Cat. J/ApJS/199/18 (YYMMDDNNN; bn)meta.idlongprimaryT90[0.192/176.2] Duration T_90_stime.epochfloate_T90[0.14/8.51] T90 uncertaintysstat.errorfloatN[2/32] Number of fitted pulsesmeta.numberintGBMDetails from the GBM GRB catalog (Cat. J/ApJS/199/18)meta.ref.urlcharpl3Trigger plot from table3meta.ref.urlcharpl4Trigger plot from table4 (different colors for photon energies)meta.ref.urlcharSimbadSimbad column added by the CDSmeta.refchar_RAPositions from the GBM GRB catalog (Cat. J/ApJS/199/18) (right ascension part)degpos.eq.ra;meta.main_DEPositions from the GBM GRB catalog (Cat. J/ApJS/199/18) (declination part)degpos.eq.dec;meta.main