Theory of GRB Afterglow
Astrophysics
2009-11-06 v1
Abstract
The most interesting current open question in the theory of GRB afterglow is the propagation of jetted afterglows during the sideway expansion phase. Recent numerical simulations show hydrodynamic behavior that differs from the one suggested by simple analytic models. Still, somewhat surprisingly, the calculated light curves show a `jet break' at about the expected time. These results suggest that the expected rate of orphan optical afterglows should be smaller than previously estimated.
Keywords
Cite
@article{arxiv.astro-ph/0107009,
title = {Theory of GRB Afterglow},
author = {Tsvi Piran and Jonathan Granot},
journal= {arXiv preprint arXiv:astro-ph/0107009},
year = {2009}
}
Comments
A short review, invited talk in the second Rome GRb meeting. To appear in the procceedings