Fermi and Swift observations of the bright short GRB 090510

Details Fermi and Swift observations of the bright short GRB 090510 Fermi and Swift observations of the bright short GRB 090510

2010-02-15

arxiv.org/abs/1002.2863v1

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

Proceedings for the 2009 Fermi Symposium. eConf Proceedings C091122

Scientific paper

The bright short-hard GRB 090510 was observed by both Swift and Fermi telescopes. The study of the prompt emission by Fermi revealed an additional high-energy spectral component, the largest lower limit ever on the bulk Lorentz factor in a short GRB jet, and brought the most stringent constraint ever on linear Lorentz invariance violation models. The fast repoint and follow-up by both telescopes allowed the first multiwavelength study of a GRB afterglow from optical range to several GeV. This long-lived emission has been studied in the framework of the internal shock and external shock models.

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