GRB and Environment Interaction
Abstract
We discuss three aspects of the interaction between GRB and their surroundings. The illumination of the progenitor remnant and/or the surroundings by the X-ray afterglow continuum can produce substantial Fe K-alpha line and edge emission, with implications for the progenitor model. The presence of large dust column densities, capable of obscuring the GRB optical afterglow, will lead to characteristic delayed X-ray and far-IR light curve signatures. Pair production induced by the initial gamma-rays in the nearby environment will modify the initial spectrum and the afterglow light curve, and the magnitude of these changes provides a diagnostic for the external density.
Cite
@article{arxiv.astro-ph/0103204,
title = {GRB and Environment Interaction},
author = {P. Meszaros},
journal= {arXiv preprint arXiv:astro-ph/0103204},
year = {2009}
}
Comments
Based on invited talks at the 20th Texas Symp. on Relativistic Astrophysics, Austin, Texas, Dec. 2000; and at the 2nd Rome Workshop on GRB in the Afterglow Era, Rome, Italy, Nov. 2000. To appear in Rome Conf Procs. and in AIP Conf. Procs., Eds. J.C. Wheeler and H. Martell; uses aipsty.tex, 5 pages, one figure