Likelihood Estimation of Gamma Ray Bursts Duration Distribution
Astrophysics
2015-06-02 v1
Abstract
Two classes of Gamma Ray Bursts have been identified so far, characterized by T90 durations shorter and longer than approximately 2 seconds. It was shown that the BATSE 3B data allow a good fit with three Gaussian distributions in log T90. In the same Volume in ApJ. another paper suggested that the third class of GRBs is may exist. Using the full BATSE catalog here we present the maximum likelihood estimation, which gives us 0.5% probability to having only two subclasses. The MC simulation confirms this probability.
Keywords
Cite
@article{arxiv.astro-ph/0506335,
title = {Likelihood Estimation of Gamma Ray Bursts Duration Distribution},
author = {Istvan Horvath},
journal= {arXiv preprint arXiv:astro-ph/0506335},
year = {2015}
}
Comments
Statistical Challenges in Modern Astronomy III Eric D. Feigelson & G. Jogesh Babu (eds.) New York:Springer-Verlag