Precursors of short GRBs

Details Precursors of short GRBs Precursors of short GRBs

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1279..132t&link_type=abstract

DECIPHERING THE ANCIENT UNIVERSE WITH GAMMA-RAY BURSTS. AIP Conference Proceedings, Volume 1279, pp. 132-135 (2010).

Astronomy and Astrophysics

Astronomy

Gamma-Ray Sources (Astronomical), Neutron Stars, Brightness, Gamma-Ray Sources, Gamma-Ray Bursts, Neutron Stars, Luminosity And Mass Functions

Scientific paper

We carried out a systematic search of precursors on the sample of short GRBs observed by Swift. We found that ~8-10% of short GRBs display such early episode of emission. One burst (GRB 090510) shows two precursor events, the former ~13 s and the latter ~0.5 s before the GRB. We discuss possible mechanisms to reproduce the observed precursor emission within the scenario of compact object mergers.

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