J/ApJ/953/67ivo://CDS.VizieR/J/ApJ/953/67doi:10.26093/cds/vizier/ba-xs-23CDSGe M.Y.Liu C.Z.Zhang S.N.Lu F.J.Zhang Z.Chang Z.Tuo Y.L.,Li X.B.Li C.K.Xiong S.L.Cai C.Li X.F.Zhang R.Dai Z.G.,Qu J.L.Song L.M.Zhang S.Wang L.J.2026-07-02T12:00:22Z2025-11-04T07:56:59ZCDS support team

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

cds-question@unistra.frtransient-sourcesx-ray-sourcesradio-sourcesA double-peak X-ray burst from the Galactic magnetar SGR J1935+2154 was discovered to be associated with the two radio pulses of FRB200428 separated by 28.97+/-0.02ms. Precise measurements of the timing and spectral properties of the X-ray bursts are helpful for understanding the physical origin of fast radio bursts. In this paper, we have reconstructed some information about the hard X-ray events, which were lost because the High Energy X-ray Telescope (HE) on board the Insight-HXMT mission was saturated by this extremely bright burst, and used the information to improve the temporal and spectral analyses of the X-ray burst. The arrival times of the two X-ray peaks by fitting the new Insight-HXMT/HE lightcurve with multi-Gaussian profiles are 2.77+/-0.45ms and 34.30+/-0.56ms after the first peak of FRB 200428, respectively, while these two parameters are 2.57+/-0.52ms and 32.5+/-1.4ms if the fitting profile is a fast-rise and exponential decay function. The spectrum of the two X-ray peaks could be described by a cutoff power law with cutoff energy ~60keV and photon index ~1.4; the latter is softer than the result obtained in Li+ 2021NatAs...5..378L when the two X-ray peaks appeared.2023ApJ...953...67Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/953/67CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/other/PASA/33.45 : FRBCAT: The Fast Radio Burst (FRB) Cat. (Petroff+, 2016)J/ApJ/901/L7 : NIR obs. of SGR 1935+215 with PGIR (De+, 2020)J/ApJ/902/L43 : Fermi/GBM 2019 and 2020 bursts of SGR J1935+2154 (Lin+, 2020)J/ApJ/904/L21 : NICER SGR 1935+2154 burst & persistent emission (Younes+, 2020)J/ApJS/257/59 : First CHIME/FRB Fast Radio Burst Cat. (CHIME/FRB Col.+, 2021)J/MNRAS/511/1961 : New CHIME/FRB I catalog updates released (Hashimoto+, 2022)J/A+A/675/A99 : FRBs search with Fermi-LAT (Principe+, 2023)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/953/67https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/953/67http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/953/67https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/953/67https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/953/67http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/953/67GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapX-rayRadiodefaultJ/ApJ/953/67/fig1The recovered lightcurve of HE in 15-250keVrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTypeData type (1)src.samplecharTime[-419.18/559.68] Time from first peak (G2)mstime.epochdoubleCRate[0.53/8] Count Rate, 15-250keV10000count.s**-1phot.count;em.X-ray.harddoublee_CRate[0.05/0.8] Uncertainty in CRate10000count.s**-1stat.error;phot.count;em.X-ray.harddoubleJ/ApJ/953/67/fig2The recovered lightcurves and fitting curvers of HE in energy band 15-250keVrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTypeData type (G1)meta.codecharTime[-419.18/559.68] Time from first peak (G2)mstime.epochdoubleCRate[-1.42/3.8] Count Rate, 15-250keV10000count.s**-1phot.count;em.X-ray.harddoublee_CRate[0.05/0.8] Uncertainty in CRate10000count.s**-1stat.error;phot.count;em.X-ray.harddoubleJ/ApJ/953/67/fig3The recovered lightcurves and fitting curvers of HE in energy band 15-60keVrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTypeData type (G1)meta.codecharTime[-419.18/559.68] Time from first peak (G2)mstime.epochdoubleCRate[-1.1/2.54] Count Rate, 15-60keV10000count.s**-1phot.count;em.X-ray.harddoublee_CRate[0.024/0.7] Uncertainty in CRate10000count.s**-1stat.error;phot.count;em.X-ray.harddoubleJ/ApJ/953/67/fig4The recovered lightcurves and fitting curves of HE in energy band 60-250keVrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTypeData type (G1)meta.codecharTime[-419.18/559.68] Time from first peak (G2)mstime.epochdoubleCRate[-0.73/2.9] Count Rate, 60-250keV10000count.s**-1phot.count;em.X-ray.harddoublee_CRate[0.02/0.7] Uncertainty in CRate10000count.s**-1stat.error;phot.count;em.X-ray.harddouble