Cosmic anisotropy with reduced relativistic gas

Simpliciano Castardelli dos Reis, Ilya L. Shapiro
2018 European Physical Journal C: Particles and Fields  
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
more » ... type I anisotropic model and find that the solutions evolve to the isotropic universe with the pressureless matter contents.
doi:10.1140/epjc/s10052-018-5618-2 fatcat:2lcshxaz3vdzboxqjckgvinelu