A comparison of the gamma-ray bursts detected by BATSE and Swift

Details A comparison of the gamma-ray bursts detected by BATSE and Swift A comparison of the gamma-ray bursts detected by BATSE and Swift

2009-05-29

arxiv.org/abs/0905.4821v1

Astronomy and Astrophysics, 504 (2009) 67-71

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

9 pages, 3 figures, accepted for publication in Astronomy and Astrophysics

Scientific paper

The durations of 388 gamma-ray bursts, detected by the Swift satellite, are studied statistically in order to search for their subgroups. Then the results are compared with the results obtained earlier from the BATSE database. The standard chi^2 test is used. Similarly to the BATSE database, the short and long subgroups are well detected also in the Swift data. Also the intermediate subgroup is seen in the Swift database. The whole sample of 388 GRBs gives a support for three subgroups.

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