J/ApJS/232/17ivo://CDS.VizieR/J/ApJS/232/17doi:10.26093/cds/vizier.22320017CDSKirmizibayrak D.Sasmaz Mus S.Kaneko Y.Gogus E.2017-12-13T18:43:29Z2017-10-26T08:03:15ZCDS support team

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

cds-question@unistra.frpulsarsx-ray-sourcesWe present our broadband (2-250keV) time-averaged spectral analysis of 388 bursts from SGR J1550-5418, SGR 1900+14, and SGR 1806-20 detected with the Rossi X-ray Timing Explorer (RXTE) here and as a database in a companion web-catalog. We find that two blackbody functions (BB+BB), the sum of two modified blackbody functions (LB+LB), the sum of a blackbody function and a power-law function (BB+PO), and a power law with a high-energy exponential cutoff (COMPT) all provide acceptable fits at similar levels. We performed numerical simulations to constrain the best fitting model for each burst spectrum and found that 67.6% of burst spectra with well-constrained parameters are better described by the Comptonized model. We also found that 64.7% of these burst spectra are better described with the LB+LB model, which is employed in the spectral analysis of a soft gamma repeater (SGR) for the first time here, than with the BB+BB and BB+PO models. We found a significant positive lower bound trend on photon index, suggesting a decreasing upper bound on hardness, with respect to total flux and fluence. We compare this result with bursts observed from SGR and AXP (anomalous X-ray pulsar) sources and suggest that the relationship is a distinctive characteristic between the two. We confirm a significant anticorrelation between burst emission area and blackbody temperature, and find that it varies between the hot and cool blackbody temperatures differently than previously discussed. We expand on the interpretation of our results in the framework of a strongly magnetized neutron star.2017ApJS..232...17Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/232/17CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/psr : ATNF Pulsar Catalogue (Manchester+, 2005)J/ApJ/634/L89 : 4.8GHz observations of SGR 1806-20 (Gelfand+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/232/17https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/232/17http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/232/17https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/232/17https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/232/17http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/232/17GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/232/17/table9 (Results of single and broken power-law fits with corresponding flux intervals)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/232/17/table9?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/232/17/table9?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/232/17/table9?GETtext/xml+votable180.050000true272.16385-20.411140.0055555555555555566/29090 30607 41814https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/232/17?format=asciiRadioX-raydefaultJ/ApJS/232/17/sgr15Observations and spectral properties of bursts for SGR J1550-5418 (tables 1 and 7)bpdof[1/131]? BB+PO DOF (3)stat.fit.dofintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/221] Burst IDmeta.id;meta.mainintf_SeqSaturated bursts are marked with asteriskmeta.codecharTstartMETBurst Start Time, in METtime.epochdoubleTstartUTBurst Start Time, in UTCtime.epochcharTExp[0.08/6.6] Spectrum duration, T_Exp_ (1)stime.epochfloatObsIDObservation IDmeta.id;obscharbbkt1[0.5/4]? BB+BB kT 1 (1)keVphys.temperaturefloatnullableE_bbkt1? BB+BB kT 1 upper bound error (2)keVstat.error;stat.maxfloatnullablee_bbkt1? BB+BB kT 1 lower bound error (2)keVstat.errorfloatnullablebbkt2[3.2/60]? BB+BB kT 2 (1)keVphys.temperaturefloatnullableE_bbkt2? BB+BB kT 2 upper bound error (2)keVstat.error;stat.maxfloatnullablee_bbkt2? BB+BB kT 2 lower bound error (2)keVstat.errorfloatnullablebbchi[0.01/251]? BB+BB chi-squared statistic (1)stat.fit.chi2floatnullablebbdof[1/131]? BB+BB DOF (3)stat.fit.dofintnullablebpkt[0.0001/200]? BB+PO kT (1)keVphys.temperaturefloatnullableE_bpkt? BB+PO kT upper bound error (2)keVstat.error;stat.maxfloatnullablee_bpkt? BB+PO kT lower bound error (2)keVstat.errorfloatnullablebppho[-3/4.5]? BB+PO power law photon index (1)spect.indexfloatnullableE_bppho? BB+PO power law photon index upper bound error (2)stat.error;stat.maxfloatnullablee_bppho? BB+PO power law photon index lower bound error (2)stat.errorfloatnullablebpchi[0.1/236]? BB+PO chi-squared statistic (1)stat.fit.chi2floatnullablelbkt1[0.5/5]? LB+LB kT 1 (1)keVphys.temperaturefloatnullableE_lbkt1? LB+LB kT 1 upper bound error (2)keVstat.error;stat.maxfloatnullablee_lbkt1? LB+LB kT 1 lower bound error (2)keVstat.errorfloatnullablelbkt2[3.5/60]? LB+LB kT 2 (1)keVphys.temperaturefloatnullableE_lbkt2? LB+LB kT 2 upper bound error (2)keVstat.error;stat.maxfloatnullablee_lbkt2? LB+LB kT 2 lower bound error (2)keVstat.errorfloatnullablelbchi[0.02/157]? LB+LB chi-squared statistic (1)stat.fit.chi2floatnullablelbdof[1/131]? LB+LB DOF (3)stat.fit.dofintnullablecpthcut[2/500]? COMPT cut-off energy (1)keVem.energyfloatnullableE_cpthcut? COMPT cut-off energy upper bound error (2)keVstat.error;stat.maxfloatnullablee_cpthcut? COMPT cut-off energy lower bound error (2)keVstat.errorfloatnullablecptpho[-2/2]? COMPT power law photon index (1)spect.indexfloatnullableE_cptpho? COMPT power law photon index upper bound error (2)stat.error;stat.maxfloatnullablee_cptpho? COMPT power law photon index lower bound error (2)stat.errorfloatnullablecptchi[0.1/229]? COMPT chi-squared statistic (1)stat.fit.chi2floatnullablecptdof[3/133]? COMPT DOF (3)stat.fit.dofintnullablecptpcaflux? COMPT PCA Flux (4)mW.m**-2phot.flux;em.X-raydoublenullableE_cptpcaflux? COMPT PCA Flux Upper bound error (2)mW.m**-2stat.error;stat.maxdoublenullablee_cptpcaflux? COMPT PCA Flux Lower bound error (2)mW.m**-2stat.errordoublenullablecpthxtflux? COMPT HEXTE Flux (5)mW.m**-2phot.flux;em.X-raydoublenullableE_cpthxtflux? COMPT HEXTE Flux Upper bound error (2)mW.m**-2stat.error;stat.maxdoublenullablee_cpthxtflux? COMPT HEXTE Flux Lower bound error (2)mW.m**-2stat.errordoublenullableJ/ApJS/232/17/sgr18Observations and spectral properties of bursts for SGR 1806-20 (tables 3 and 6)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/221] Burst IDmeta.id;meta.mainintf_SeqSaturated bursts are marked with asteriskmeta.codecharTstartMETBurst Start Time, in METtime.epochdoubleTstartUTBurst Start Time, in UTCtime.epochcharTExp[0.08/6.6] Spectrum duration, T_Exp_ (1)stime.epochfloatObsIDObservation IDmeta.id;obscharbbkt1[0.5/4]? BB+BB kT 1 (1)keVphys.temperaturefloatnullableE_bbkt1? BB+BB kT 1 upper bound error (2)keVstat.error;stat.maxfloatnullablee_bbkt1? BB+BB kT 1 lower bound error (2)keVstat.errorfloatnullablebbkt2[3.2/60]? BB+BB kT 2 (1)keVphys.temperaturefloatnullableE_bbkt2? BB+BB kT 2 upper bound error (2)keVstat.error;stat.maxfloatnullablee_bbkt2? BB+BB kT 2 lower bound error (2)keVstat.errorfloatnullablebbchi[0.01/251]? BB+BB chi-squared statistic (1)stat.fit.chi2floatnullablebbdof[1/131]? BB+BB DOF (3)stat.fit.dofintnullablebpkt[0.0001/200]? BB+PO kT (1)keVphys.temperaturedoublenullableE_bpkt? BB+PO kT upper bound error (2)keVstat.error;stat.maxfloatnullablee_bpkt? BB+PO kT lower bound error (2)keVstat.errordoublenullablebppho[-3/4.5]? BB+PO power law photon index (1)spect.indexfloatnullableE_bppho? BB+PO power law photon index upper bound error (2)stat.error;stat.maxfloatnullablee_bppho? BB+PO power law photon index lower bound error (2)stat.errorfloatnullablebpchi[0.1/236]? BB+PO chi-squared statistic (1)stat.fit.chi2floatnullablebpdof[1/131]? BB+PO DOF (3)stat.fit.dofintnullablelbkt1[0.5/5]? LB+LB kT 1 (1)keVphys.temperaturefloatnullableE_lbkt1? LB+LB kT 1 upper bound error (2)keVstat.error;stat.maxfloatnullablee_lbkt1? LB+LB kT 1 lower bound error (2)keVstat.errorfloatnullablelbkt2[3.5/60]? LB+LB kT 2 (1)keVphys.temperaturefloatnullableE_lbkt2? LB+LB kT 2 upper bound error (2)keVstat.error;stat.maxfloatnullablee_lbkt2? LB+LB kT 2 lower bound error (2)keVstat.errorfloatnullablelbchi[0.02/157]? LB+LB chi-squared statistic (1)stat.fit.chi2floatnullablelbdof[1/131]? LB+LB DOF (3)stat.fit.dofintnullablecpthcut[2/500]? COMPT cut-off energy (1)keVem.energyfloatnullableE_cpthcut? COMPT cut-off energy upper bound error (2)keVstat.error;stat.maxfloatnullablee_cpthcut? COMPT cut-off energy lower bound error (2)keVstat.errorfloatnullablecptpho[-2/2]? COMPT power law photon index (1)spect.indexfloatnullableE_cptpho? COMPT power law photon index upper bound error (2)stat.error;stat.maxfloatnullablee_cptpho? COMPT power law photon index lower bound error (2)stat.errorfloatnullablecptchi[0.1/229]? COMPT chi-squared statistic (1)stat.fit.chi2floatnullablecptdof[3/133]? COMPT DOF (3)stat.fit.dofintnullablecptpcaflux? COMPT PCA Flux (4)mW.m**-2phot.flux;em.X-raydoublenullableE_cptpcaflux? COMPT PCA Flux Upper bound error (2)mW.m**-2stat.error;stat.maxdoublenullablee_cptpcaflux? COMPT PCA Flux Lower bound error (2)mW.m**-2stat.errordoublenullablecpthxtflux? COMPT HEXTE Flux (5)mW.m**-2phot.flux;em.X-raydoublenullableE_cpthxtflux? COMPT HEXTE Flux Upper bound error (2)mW.m**-2stat.error;stat.maxdoublenullablee_cpthxtflux? COMPT HEXTE Flux Lower bound error (2)mW.m**-2stat.errordoublenullableJ/ApJS/232/17/sgr19Observations and spectral properties of bursts for SGR 1900+14 (tables 2 and 5)bbdof[1/131]? BB+BB DOF (3)stat.fit.dofintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/221] Burst IDmeta.id;meta.mainintf_SeqSaturated bursts are marked with asteriskmeta.codecharTstartMETBurst Start Time, in METtime.epochdoubleTstartUTBurst Start Time, in UTCtime.epochcharTExp[0.08/6.6] Spectrum duration, T_Exp_ (1)stime.epochfloatObsIDObservation IDmeta.id;obscharbbkt1[0.5/4]? BB+BB kT 1 (1)keVphys.temperaturefloatnullableE_bbkt1? BB+BB kT 1 upper bound error (2)keVstat.error;stat.maxfloatnullablee_bbkt1? BB+BB kT 1 lower bound error (2)keVstat.errorfloatnullablebbkt2[3.2/60]? BB+BB kT 2 (1)keVphys.temperaturefloatnullableE_bbkt2? BB+BB kT 2 upper bound error (2)keVstat.error;stat.maxfloatnullablee_bbkt2? BB+BB kT 2 lower bound error (2)keVstat.errorfloatnullablebbchi[0.01/251]? BB+BB chi-squared statistic (1)stat.fit.chi2floatnullablebpkt[0.0001/200]? BB+PO kT (1)keVphys.temperaturefloatnullableE_bpkt? BB+PO kT upper bound error (2)keVstat.error;stat.maxfloatnullablee_bpkt? BB+PO kT lower bound error (2)keVstat.errorfloatnullablebppho[-3/4.5]? BB+PO power law photon index (1)spect.indexfloatnullableE_bppho? BB+PO power law photon index upper bound error (2)stat.error;stat.maxfloatnullablee_bppho? BB+PO power law photon index lower bound error (2)stat.errorfloatnullablebpchi[0.1/236]? BB+PO chi-squared statistic (1)stat.fit.chi2floatnullablebpdof[1/131]? BB+PO DOF (3)stat.fit.dofintnullablelbkt1[0.5/5]? LB+LB kT 1 (1)keVphys.temperaturefloatnullableE_lbkt1? LB+LB kT 1 upper bound error (2)keVstat.error;stat.maxfloatnullablee_lbkt1? LB+LB kT 1 lower bound error (2)keVstat.errorfloatnullablelbkt2[3.5/60]? LB+LB kT 2 (1)keVphys.temperaturefloatnullableE_lbkt2? LB+LB kT 2 upper bound error (2)keVstat.error;stat.maxfloatnullablee_lbkt2? LB+LB kT 2 lower bound error (2)keVstat.errorfloatnullablelbchi[0.02/157]? LB+LB chi-squared statistic (1)stat.fit.chi2floatnullablelbdof[1/131]? LB+LB DOF (3)stat.fit.dofintnullablecpthcut[2/500]? COMPT cut-off energy (1)keVem.energyfloatnullableE_cpthcut? COMPT cut-off energy upper bound error (2)keVstat.error;stat.maxfloatnullablee_cpthcut? COMPT cut-off energy lower bound error (2)keVstat.errorfloatnullablecptpho[-2/2]? COMPT power law photon index (1)spect.indexfloatnullableE_cptpho? COMPT power law photon index upper bound error (2)stat.error;stat.maxfloatnullablee_cptpho? COMPT power law photon index lower bound error (2)stat.errorfloatnullablecptchi[0.1/229]? COMPT chi-squared statistic (1)stat.fit.chi2floatnullablecptdof[3/133]? COMPT DOF (3)stat.fit.dofintnullablecptpcaflux? COMPT PCA Flux (4)mW.m**-2phot.flux;em.X-raydoublenullableE_cptpcaflux? COMPT PCA Flux Upper bound error (2)mW.m**-2stat.error;stat.maxdoublenullablee_cptpcaflux? COMPT PCA Flux Lower bound error (2)mW.m**-2stat.errordoublenullablecpthxtflux? COMPT HEXTE Flux (5)mW.m**-2phot.flux;em.X-raydoublenullableE_cpthxtflux? COMPT HEXTE Flux Upper bound error (2)mW.m**-2stat.error;stat.maxdoublenullablee_cpthxtflux? COMPT HEXTE Flux Lower bound error (2)mW.m**-2stat.errordoublenullableJ/ApJS/232/17/table9Results of single and broken power-law fits with corresponding flux intervalsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSoft gamma repeater (SGR) namemeta.id;meta.maincharlogFluxlog_10_ flux interval in erg/cm^2^/slog(0.001W.m**-2)phot.flux;em.X-raycharloEnergy[-7.6/-3.5] Low-energy index, broken power lawkeVem.energyfloate_loEnergyloEnergy uncertaintykeVstat.errorfloathiEnergy[-5.6/-3.4] High-energy index, broken power lawkeVem.energyfloate_hiEnergyHiEnergy uncertaintykeVstat.errorfloatkTbk[5.2/8.1] The break index in kTkeVmeta.code;phys.energyfloatChi2[0.4/2.2] {chi}^2^/DOF; broken power lawstat.fit.chi2floatIndex[-3.6/-3.2] Single power law indexspect.indexfloate_IndexIndex uncertaintystat.error;spect.indexfloatChi2s[0.5/3] {chi}^2^/DOF; single power lawmeta.notefloatNbNumber of bursts; column added by CDSmeta.numberintSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main