X-ray afterglows from gamma-ray bursts
Astrophysics
2009-10-30 v1
Abstract
We consider possible interpretations of the recently detected X- ray afterglow from the gamma-ray burst source GRB 970228. Cosmological and Galactic models of gamma-ray bursts predict different flux and spectral evolution of X-ray afterglows. We show that models based on adiabatic expansion of relativistic forward shocks require very efficient particle energization or post-burst re-acceleration during the expansion. Cooling neutron star models predict a very distinctive spectral and flux evolution that can be tested in current X-ray data.
Cite
@article{arxiv.astro-ph/9703150,
title = {X-ray afterglows from gamma-ray bursts},
author = {M. Tavani},
journal= {arXiv preprint arXiv:astro-ph/9703150},
year = {2009}
}
Comments
15 pages, 2 postscript files with figures submitted to Astrophys. J. Letters, March 18, 1997