Early Stages of the GRB Explosion
arXiv:astro-ph/0405214 · doi:10.1063/1.1810828
Abstract
Physics of GRB blast waves is discussed with a focus on two effects: (1) pair creation in the external medium by the gamma-ray front and (2) decay of neutrons ahead of the decelerating blast wave. Both effects impact the afterglow mechanism at radii up to 10^{17}cm.
arXiv comment5 pages, to appear in the proceedings of the 2003 GRB Conference, Santa Fe, Sep 8-12