Analysis of the Swift Gamma-Ray Bursts duration

I. Horváth, L. G. Balázs, Z. Bagoly, J. Kelemen, P. Veres, G. Tusnády

Research output: Conference contribution

2 Citations (Scopus)


Two classes of gamma-ray bursts have been identified in the BATSE catalogs characterized by durations shorter and longer than about 2 seconds. There are, however, some indications for the existence of a third type of burst. Swift satellite detectors have different spectral sensitivity than pre-Swift ones for gamma-ray bursts. Therefore it is worth to reanalyze the durations and their distribution and also the classification of GRBs. Using The First BAT Catalog the maximum likelihood estimation was used to analyzed the duration distribution of GRBs. The three log-normal fit is significantly (99.54% probability) better than the two for the duration distribution. Monte-Carlo simulations also confirm this probability (99.2%).

Original languageEnglish
Title of host publication2008 Nanjing Gamma-Ray Burst Conference
Number of pages4
Publication statusPublished - dec. 1 2008
Event2008 Nanjing Gamma-Ray Burst Conference - Nanjing, China
Duration: jún. 23 2008jún. 27 2008

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Other2008 Nanjing Gamma-Ray Burst Conference


ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Horváth, I., Balázs, L. G., Bagoly, Z., Kelemen, J., Veres, P., & Tusnády, G. (2008). Analysis of the Swift Gamma-Ray Bursts duration. In 2008 Nanjing Gamma-Ray Burst Conference (pp. 67-70). (AIP Conference Proceedings; Vol. 1065).