Supernovae-optical precursors of short gamma-ray bursts |
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| Authors: | V I Dokuchaev Yu N Eroshenko |
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| Institution: | 1.Institute for Nuclear Research,Russian Academy of Sciences,Moscow,Russia |
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| Abstract: | 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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