J/ApJ/898/14ivo://CDS.VizieR/J/ApJ/898/14doi:10.26093/cds/vizier.18980014CDSMao J.Li L.Wang J.2022-03-21T07:04:24Z2021-12-07T08:46:14ZCDS support team

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

cds-question@unistra.frgamma-ray-astronomygamma-ray-burstsWe statistically examine the gamma-ray burst (GRB) photon indices obtained by the Fermi-GBM and Fermi-LAT observations and compare the LAT GRB photon indices to the GBM GRB photon indices. We apply the jitter radiation to explain the GRB spectral diversities in the high-energy bands. In our model, the jitter radiative spectral index is determined by the spectral index of the turbulence. We classify GRBs into three classes depending on the shape of the GRB high-energy spectrum when we compare the GBM and LAT detections: the GRB spectrum is concave (GRBs turn out to be softer and are labeled as S-GRBs), the GRB spectrum is convex (GRBs turn out to be harder and are labeled as H-GRBs), and the GRBs have no strong spectral changes (labeled as N-GRBs). A universal Kolmogorov index 7/3 in the turbulent cascade is consistent with the photon index of the N-GRBs. The S-GRB spectra can be explained by the turbulent cascade due to the kinetic magnetic reconnection with the spectral index range of the turbulence from 8/3 to 3.0. The H-GRB spectra originate from the inverse turbulent cascade with the spectral index range of the turbulence from 2.0 to 3.5 that occurred during the large lengthscale magnetic reconnection. Thus, the GRB radiative spectra are diversified because the turbulent cascade modifies the turbulent energy spectrum. More observational samples are expected in the future to further identify our suggestions.2020ApJ...898...14Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/898/14CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/swift : Swift Master Catalog (HEASARC, 2004-)J/ApJ/754/121 : GRBs from Fermi/GBM and LAT (The Fermi Team, 2012)J/ApJ/787/90 : Gamma-ray bursts minimum timescales (Golkhou+, 2014)J/ApJ/781/37 : Multi-band photometry of GRB 130427A (Perley+, 2014)J/ApJS/211/13 : The second Fermi/GBM GRB catalog (4yr) (von Kienlin+, 2014)J/ApJ/811/93 : Fermi/GBM GRB minimum timescales (Golkhou+, 2015)J/ApJS/223/28 : The third Fermi/GBM GRB catalog (6yr) (Bhat+, 2016)J/ApJ/829/7 : 3rd Swift/BAT GRB catalog (past ~11yrs) (BAT3) (Lien+, 2016)J/A+A/588/A135 : Fermi/GBM GRB time-resolved spectral catalog (Yu+, 2016)J/ApJ/893/46 : 4rth Fermi-GBM GRB catalog: 10 years (von Kienlin+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/898/14https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/898/14http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/898/14https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/898/14https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/898/14http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/898/14GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/898/14/table1 (GRB spectral properties detected by Fermi-LAT, Fermi-GBM, and Swift-BAT)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/898/14/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/898/14/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/898/14/table1?GETtext/xml+votable180.050000true232.2-4.90.0055555555555555566/888 3063 3553 4887 4902 5481 6025 6214 6576 6594 7454 7750 8044 8071 8966 9276 9431 11035 11162 11220 12031 12425 12702 12826 13350 13542 13779 13870 14810 15360 16187 17395 17398 17982 18133 18697 19097 19609 19874 20571 20631 20800 20885 21284 21737 21995 22306 22430 22478 22590 22665 23576 25710 25902 26013 26365 26434 27337 27411 27541 27810 27932 27961 28316 28342 28361 28555 28930 28959 30595 31120 31273 32027 32419 32503 32646 32661 33306 33444 33598 33612 33616 33832 33907 33922 34610 34619 34933 35263 35492 35764 35902 36460 36480 37281 37505 37541 37628 37957 38092 38319 38353 38362 39007 39304 39594 39988 40373 40599 40854 41274 41541-41542 43084 43098 43229 43310 43547 44223 44228 44277 44291 44311 44617 44976 45401 45509 45835 45868 46032 46472 46710 47031 47035 47152 48953 49089https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/898/14?format=asciiGamma-raydefaultJ/ApJ/898/14/table1GRB spectral properties detected by Fermi-LAT, Fermi-GBM, and Swift-BATSimbadNameSimbad column added by the CDSmeta.idcharnullableGRBGRB Namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClassClassification (1)src.classcharShortShort GRB? *=yesmeta.codecharLAT1[-4/-1] LAT photon index obtained from the LAT observing time intervalspect.indexfloate_LAT1[0.04/2] Uncertainty in LAT1stat.errorfloatLAT2[-5.1/-1.5]? LAT photon index obtained from the GBM observing time intervalspect.indexfloatnullablee_LAT2[0.05/2]? Uncertainty in LAT2stat.errorfloatnullableBeta[-4.7/-1.58]? Band function, high-energy photon indexspect.indexfloatnullablee_Beta[0.01/81.5]? Uncertainty in Betastat.errorfloatnullablealpha[-1.58/0.08]? Band function, low-energy photon indexspect.indexfloatnullablee_alpha[0.0/34.7]? Uncertainty in alphastat.error;spect.indexfloatnullableEpeak[0.19/42.5]? Peak energy100eVem.energyfloatnullablee_Epeak[0.01/75.9]? Uncertainty in Epeak100eVstat.errorfloatnullablePL[-2.02/-0.96]? BAT photon index, power-law fittingspect.indexfloatnullablee_PL[0.02/0.58]? Uncertainty in PLstat.errorfloatnullableCPL[-1.8/-0.66]? BAT photon index, cutoff power-law fittingspect.indexfloatnullablee_CPL[0.03/0.72]? Uncertainty in CPLstat.errorfloatnullableBAT3Display the 3rd Swift/BAT GRB catalog (Lien+, 2016, J/ApJ/829/7)meta.ref.urlintnullableFermiDisplay data from Fermi -GBM and -LAT (Fermi, 2012, J/ApJ/754/121) if anymeta.ref.urlintnullableGBMDisplay data from Fermi -GBM GRB cat. (von Kienlin+, 2020, J/ApJ/893/46) if anymeta.ref.urlintnullableNEDNED column added by the CDSmeta.ref.urlchar_RAPositions from SIMBAD (right ascension part)degpos.eq.ra;meta.mainnullable_DEPositions from SIMBAD (declination part)degpos.eq.dec;meta.mainnullable