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1、thecorrelationbetweenobservedflux∽andpeakenergy㈣)of1痧spectruminrisinganddecayingphasesofthesepulses．Twokindsof島evolutiontrends，i?ehard-to—soft(two—thi池ofpulsesinoursample)and屏-tracing—F(one-thirdofpulsesinOursample)，areobservedinpulsesfromdifferentGRBsandevenfro
2、mdifferentpulsesofsameburst．Nodependenceofspectralevolutionfeatureonpulseshapeisfound．Atightp耳positivecorrelationisobservedindecayingphases，withapower-lawindex。2．2，whichismuchshallowerthanthatexpectedfromcurvatureeffect．Inrisingphase，theobservedFiseithercorrelat
3、edoranti—correlatedwim屏，dependingonspectralevolutionfeature，andpower-lawindexofcorrelationisdramaticallydifferentamongpulses．Morethan80％oflow—energyphotonindicesintime-resolvedspectra,whoseep’Sareanti—correlatedwithFduringrisingphase，violatedeathlineofsynchrotro
4、nradiation,disfavoringsynchrotronradiationmodelforthesegammarays．Thep昂correlation，especiallyforthoseGRBswithEp-tracking-Fspectralevolution，maybeduetoviewingangleandjetstructureeffects．Inthisscenario，theobservedp島correlationinrisingphasemaybeduetolineofsighttowar
5、dastructuredjetmovingfromoff-beamtoon—beam(jitter)，andbothon—beamemissionanddecayedphotonsfromhighlatitudeofGRBfireballcontributetodecayingphase，resultinginashallowerslopeofIVobservedp島correlationthanthatpredictedbythepurecurvatureeffect．Low—energyphotonsgeneral
6、lylagbehindthehighenergyphotonsinGRBs．WestudythespectrallagsinboththeGRBpulsesandlateX-rayflares．WeshowthatthelagsintheflaresaremuchlongerthanthatintheGRBpulses，andthelongerdurationofapulse／flaretendstohavelongerspectrallag．Normalizedthelagtothedurationofthecorr
7、espondingpulse／flare，wefindthatthenormalizedlagsintheflaresandpulsesroughlyfollowthesamerelation，likelyindicatingthatphysicaloriginofthelaginboththepulsesandflaresaresimilar．KEYWORDS：Gamma-RayBursts，Spectrum，blackbodyV1．1伽瑪暴的觀測?????????????????????????????．21．1．
8、1觀測儀器???????????????????????????．21．1．2觀測特征????????????????????????????61．2伽瑪暴的分類?????????????????????????????171．2．1長暴和短暴??????????????????????????．171．2．2TypeI型和Typ
