SNe Data Analysis in Variable Speed of Light Cosmologies without Cosmological Constant
Cosmology and Nongalactic Astrophysics
2015-06-19 v1 General Relativity and Quantum Cosmology
Abstract
In this work, we aim to show the possibilities of the variable speed of light (VSL) theory in explaining the type Ia supernovae observations without introducing dark energy. The speed of light is assumed to be scale factor dependent, which is the most popular assumption in VSL theory. We show the modified calculation of the distance modulus, and the validity of the redshift-scale factor relation in VSL theory. Three different models of VSL are tested SNe data-sets with proper constraints on the model parameters. The comparison of the three models and flat CDM in distance modulus is showed. Some basic problems and the difficulties of the confirmation of the VSL theory are also discussed
Keywords
Cite
@article{arxiv.1404.7693,
title = {SNe Data Analysis in Variable Speed of Light Cosmologies without Cosmological Constant},
author = {Peng-fei Zhang and Xin-he Meng},
journal= {arXiv preprint arXiv:1404.7693},
year = {2015}
}
Comments
9ps,9figs