Cosmic anisotropy with Reduced Relativistic Gas
Abstract
The dynamics of cosmological anisotropies is investigated for Bianchi type I universe filled by a relativistic matter represented by the reduced relativistic gas model (RRG), with equation of state interpolating between radiation and matter. Previously it was shown that the interpolation is observed in the background cosmological solutions for homogeneous and isotropic universe and also for the linear cosmological perturbations. We extend the application of RRG to the Bianchi type I anisotropic model and find that the solutions evolve to the isotropic universe with the pressureless matter contents.
Keywords
Cite
@article{arxiv.1712.03066,
title = {Cosmic anisotropy with Reduced Relativistic Gas},
author = {Simpliciano Castardelli dos Reis and Ilya L. Shapiro},
journal= {arXiv preprint arXiv:1712.03066},
year = {2019}
}
Comments
18 pages, 4 figures. Added small Appendix and a few extra references, slightly extended discussion on the possible application of the results. Version accepted in European Journal of Physics C, with LaTeX format modified accordingly