J/A+A/589/A97ivo://CDS.VizieR/J/A+A/589/A97doi:10.26093/cds/vizier.35890097CDSDichiara S.Guidorzi C.Amati L.Frontera F.Margutti R.2017-12-06T07:38:41Z2016-04-19T08:18:41ZCDS support team

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

cds-question@unistra.frgamma-ray-astronomyThe origin of the gamma-ray burst (GRB) prompt emission still defies explanation, in spite of recent progress made, for example, on the occasional presence of a thermal component in the spectrum along with the ubiquitous non-thermal component that is modelled with a Band function. The combination of finite duration and aperiodic modulations make GRBs hard to characterise temporally. Although correlations between GRB luminosity and spectral hardness on one side and time variability on the other side have long been known, the loose and often arbitrary definition of the latter makes the interpretation uncertain. We characterise the temporal variability in an objective way and search for a connection with rest-frame spectral properties for a number of well-observed GRBs. We studied the individual power density spectra (PDS) of 123 long GRBs with measured redshift, rest-frame peak energy E_p,i_ of the time-averaged {nu}F{nu} spectrum, and well-constrained PDS slope {alpha} detected with Swift, Fermi and past spacecraft. The PDS were modelled with a power law either with or without a break adopting a Bayesian Markov chain Monte Carlo technique.2016A&A...589A..97Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/589/A97CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/777/132 : A search for progenitors of short GRBs (Dichiara+, 2013)J/A+A/589/A98 : Swift GRBs individual power density spectra (Guidorzi+, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/589/A97https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/589/A97http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/589/A97https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/589/A97https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/589/A97http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/589/A97GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/589/A97/table1 (PDS parameters of a sample of 123 long GRBs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/589/A97/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/589/A97/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/589/A97/table1?GETtext/xml+votable180.050000true75.444583311.78138890.0055555555555555566/500 646 962 2044 2682 3089 3111 3586 4449 5051 5625 6141 6261 6523 7227 7518 7532 7589 8074 8103 8182 8569 8798 9370 9431 9662 9910 9989 9998 10094 10424 10519 10589 10704 11220 11657 11822 12438 13694 13779 14259 15295 15530 16282 16661 17316 17411 17814 17911 17982 18728 18777 19097 19519 19731 20460 21284 21595 22008 23413 24072 24097 24779 25452 26365 27541 27810 27933 27961-27962 28058 28344 28546 28555 28930 29231 29731 30557 31185 31281 31494 32239 32646 32713 33004 33050 33146 33278 33525 33735 33860 34832 35633 35844 36066 36074 36460 37123 37391 37505 37628 39427 39594 40433 40778 41095 42545 44857 45347 45401 45510 45938 46022 46218 47148 47162 47217 48054 48804 49004https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/589/A97?format=asciiGamma-raydefaultJ/A+A/589/A97/table1PDS parameters of a sample of 123 long GRBse_alphaalpha errorstat.error;pos.eq.rafloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGRBGRB name (YYMMNNA)meta.id;meta.maincharExpExperiment use for detection and spectroscopy (1)meta.id;obscharzRedshiftsrc.redshiftfloatr_z[1-70]? References for redshift values, in refs.dat filemeta.ref;pos.frameintnullablelog(E52)logarithmic value of Eiso (isotropic-equivalent radiated energy) (in 10^52^erg)log(1e+45J)phys.energyfloate_log(E52)logarithmic error related to Log(E52) (in 10^52^erg)log(1e+45J)stat.errorfloatlog(Epi)logarithmic value of Ep,i (peak energy of the nuFnu spectrum)log(keV)phys.energyfloate_log(Epi)logarithmic error related to Log(Epi)log(keV)stat.errorfloatr_log(Epi)[71-104]? References for Ep,i values, in refs.dat filemeta.ref;pos.frameintnullabletstartTime interval used for the PDS extraction: start time (2)stime.interval;instr.setupfloattstopTime interval used for the PDS extraction: stop time (2)stime.interval;instr.setupfloatalphaPDS power-law indexspect.indexfloatlogfb? logarithmic break frequency of PDS (3)log(Hz)em.freqfloatnullablee_logfb? logarithmic error related to logfblog(Hz)stat.errorfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.mainnullable_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainnullableJ/A+A/589/A97/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference ocdemeta.ref;pos.frameintBibCodeBibCodemeta.bib.bibcodecharautAtuhor's namemeta.id;meta.maincharComCommentsmeta.notechar