The "Fireshell" model in the Swift era
Astrophysics
2016-11-15 v1
Abstract
We here re-examine the validity of the constant-index power-law relation between the fireshell Lorentz gamma factor and its radial coordinate, usually adopted in the current Gamma-Ray Burst (GRB) literature on the grounds of an "ultrarelativistic" approximation. Such expressions are found to be mathematically correct but only approximately valid in a very limited range of the physical and astrophysical parameters and in an asymptotic regime which is reached only for a very short time, if any.
Keywords
Cite
@article{arxiv.0804.2816,
title = {The "Fireshell" model in the Swift era},
author = {Carlo Luciano Bianco and Remo Ruffini},
journal= {arXiv preprint arXiv:0804.2816},
year = {2016}
}
Comments
3 pages, 1 figure, to appear on the Proceedings of the Eleventh Marcel Grossmann Meeting, Berlin (Germany), July 2006