EGRET observations of three gamma-ray bursts at energies ≳30 MeV
- 1 January 1994
- proceedings article
- Published by AIP Publishing in AIP Conference Proceedings
- Vol. 307 (1) , 22-26
- https://doi.org/10.1063/1.45796
Abstract
EGRET has imaged three gamma‐ray bursts at energies above 30 MeV. The bursts are GRB930131, GRB910503, and GRB910601—listed in order of decreasing intensity. GeV emission has been detected in two bursts which increases by an order of magnitude the maximum energy gamma rays observed from a gamma‐ray burst. The high energy emission is a significant contributor to the fluence of these burst, and the duration of the high energy emission is at least as long and in some cases longer than the emission observed by BATSE. The high energy gamma rays are also used to determine the most probable direction of the burst.Keywords
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