Direct and bulk-scattered forward-shock emissions: sources of X-ray afterglow diversity
Astrophysics
2009-06-23 v1
Abstract
I describe the modifications to the standard forward-shock model required to account for the X-ray light-curve features discovered by Swift in the early afterglow emission and propose that a delayed, pair-enriched, and highly relativistic outflow, which bulk-scatters the forward-shock synchrotron emission, yields sometimes a brighter X-ray emission, producing short-lived X-ray flares, X-ray light-curve plateaus ending with chromatic breaks, and fast post-plateau X-ray decays.
Keywords
Cite
@article{arxiv.0802.1235,
title = {Direct and bulk-scattered forward-shock emissions: sources of X-ray afterglow diversity},
author = {A. Panaitescu},
journal= {arXiv preprint arXiv:0802.1235},
year = {2009}
}
Comments
6 pages, submitted to the proceedings of 2007 GRB meeting, Santa Fe, NM, Nov 5-9 2007