An anisotropic cosmological model with isotropic background radiation
Saulo Carneiro, Guillermo A. Mena Marugan
TL;DR
This paper introduces an exact anisotropic cosmological model with an isotropic background radiation, combining Bianchi type III spacetime and multiple matter components, aligning with standard cosmological evolution.
Contribution
It provides a novel exact solution of Einstein equations incorporating anisotropic scalar fields and multiple fluids, extending anisotropic cosmology models.
Findings
The model reproduces standard cosmological scale factor evolution.
It demonstrates compatibility of anisotropic models with isotropic background radiation.
Provides a new exact solution for Bianchi type III spacetime.
Abstract
We present an exact solution of Einstein equations that describes a Bianchi type III spacetime with conformal expansion. The matter content is given by an anisotropic scalar field and two perfect fluids representing dust and isotropic radiation. Based on this solution, we construct a cosmological model that respects the evolution of the scale factor predicted in standard cosmology.
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