The Edge of a Gamma Ray Burst Afterglow
Astrophysics
2009-10-30 v2
Abstract
We discuss the formation of spectral features in the decelerating ejecta of gamma-ray bursts, including the possible effect of inhomogeneities. These should lead to blueshifted and broadened absorption edges and resonant features, especially from H and He. An external neutral ISM could produce detectable H and He, as well as Fe X-ray absorption edges and lines. Hypernova scenarios may be diagnosed by Fe K- and H Ly- emission lines.
Cite
@article{arxiv.astro-ph/9806183,
title = {The Edge of a Gamma Ray Burst Afterglow},
author = {P. Meszaros and M. J. Rees},
journal= {arXiv preprint arXiv:astro-ph/9806183},
year = {2009}
}
Comments
M.N.R.A.S., accepted July 16 1998; submitted June 4 1998; latex, 11 pages