Study of Very Short GRB: New Results from BATSE and KONUS

Details Study of Very Short GRB: New Results from BATSE and KONUS Study of Very Short GRB: New Results from BATSE and KONUS

2005-10-11

arxiv.org/abs/astro-ph/0510309v1

Astrophys.J.633:L73-L76,2005

Astronomy and Astrophysics

Astrophysics

accepted for ApJ Letters

Scientific paper

10.1086/498567

Our recent studies of Very Short Gamma Ray Bursts (VSB) of duration T_{90} \le 100 ms have indicated a significant angular asymmetry and a uniform V/V_{max} distribution from the BATSE data. Here we update these studies, and we extend our research to events observed with KONUS satellite which gives a new insight into the spectra not possible with the BATSE data. KONUS has observed 18 events with T_{90} \le 100 ms duration. These events display considerable numbers of photons with energies above 1 MeV and have photons above 5 MeV in all cases. These appear to be some of the most energetic photons observed from any classes of GRB to date.

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