The truncated lognormal distribution as a luminosity function for SWIFT-BAT gamma-ray bursts
Cosmology and Nongalactic Astrophysics
2016-11-08 v1
Abstract
The determination of the luminosity function (LF) in gamma ray bursts (GRBs) depends on the adopted cosmology, each one characterized by its corresponding luminosity distance. Here we analyse three cosmologies: the standard cosmology, the plasma cosmology, and the pseudo-Euclidean universe. The LF of the GRBs is firstly modeled by the lognormal distribution and the four broken power law, and secondly by a truncated lognormal distribution. The truncated lognormal distribution fits acceptably the range in luminosity of GRBs as a function of the redshift.
Keywords
Cite
@article{arxiv.1611.01650,
title = {The truncated lognormal distribution as a luminosity function for SWIFT-BAT gamma-ray bursts},
author = {L. Zaninetti},
journal= {arXiv preprint arXiv:1611.01650},
year = {2016}
}
Comments
20 pages and 15 figures