Analysis of the Swift Gamma-Ray Bursts duration
Two classes of gamma-ray bursts have been identified in the BATSE catalogs characterized by durations shorter and longerthan about 2 seconds. There are, however, some indications for the existence of a third type of burst.Swift satellite detectorshave different spectral sensitivity than pre-Swift ones for gamma-ray bursts. Therefore it is worth to reanalyze the durationsand their distribution and also the classification of GRBs. Using The First BAT Catalog the maximum likelihood estimationwas used to analyzed the duration distribution of GRBs. The three log-normal fit is significantly (99.54％ probability) betterthan the two for the duration distribution. Monte-Carlo simulations also confirm this probability (99.2％).
γ-ray sources γ-ray bursts
I.Horvath L.G.Bal(a)zs Z.Bagoly J.Kelemen P.Veres G.Tusnady
Dept.of Physics,Bolyai Military University,H-1581 Budapest,POB 15,Hungary Konkoly Observatory,H-1525 Budapest,POB 67,Hungary Dept.of Physics of Complex Systems,Eotvos University,H-1117 Budapest,Pazmany P.s.l/A,Hungary Renyi Institute of Mathematics,Hungarian Academy of Sciences,H-1364 Budapest,POB 127,Hungary
国际会议
2008 NanJing Gamma-Ray Burst Conference(2008年伽马暴国际研讨会)
南京
英文
67-70
2008-06-23（万方平台首次上网日期，不代表论文的发表时间）