Supernovae - Optical Precursors of Short Gamma-Ray Bursts

Details Supernovae - Optical Precursors of Short Gamma-Ray Bursts Supernovae - Optical Precursors of Short Gamma-Ray Bursts

2011-02-20

arxiv.org/abs/1102.4072v1

Astronomy Letters 37, 83 (2011)

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

12 pages, 1 figure; this paper has the e-precursor arXiv:1101.3298 [astro-ph.HE]

Scientific paper

10.1134/S1063773710120035

The probability of observing "supernova - gamma-ray burst" (GRB) pair events and recurrent GRBs from one galaxy in a time interval of several years has been estimated. Supernova explosions in binary systems accompanied by the formation of a short-lived pair of compact objects can be the sources of such events. If a short GRB is generated during the collision of a pair, then approximately each of ~300 short GRBs with redshift z must have an optical precursor - a supernova in the observer's time interval <2(1+z)yr. If the supernova explosion has the pattern of a hypernova, then a successive observation of long and short GRBs is possible. The scenario for the generation of multiple GRBs in collapsing galactic nuclei is also discussed.

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