A mini-supernova model for optical afterglows of GRB
arXiv:astro-ph/9709172 · doi:10.1046/j.1365-8711.1998.01251.x
Abstract
An energy deposition of \sim 10^{50} ergs into the exterior 10^{-3} M_\sun layers of a red giant is calculated to produce an optical phenomenon similar to afterglows of gamma-ray bursts (GRB) recently observed. This model can be realized if a GRB is generated by some mechanism in a close binary system. In contrast to a ``hypernova'' scenario for GRB recently proposed by Paczyński (1997), this model does not require a huge kinetic energy of the expanding shell to explain optical afterglows of GRB.
5 pages with 1 eps figures, mn.sty + epsf.sty, Submitted to MNRAS on July 17, 1997; after revision on September 17, 1997
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