Inhomogeneous imperfect fluid spherical models without Big-Bang singularity
General Relativity and Quantum Cosmology
2009-10-30 v1
Abstract
So far all known singularity-free cosmological models are cylindrically symmetric. Here we present a new family of spherically symmetric non-singular models filled with imperfect fluid and radial heat flow, and satisfying the weak and strong energy conditions. For large anisotropy in pressure and heat flux tend to vanish leading to a perfect fluid. There is a free function of time in the model, which can be suitably chosen for non-singular behaviour and there exist multiplicity of such choices.
Keywords
Cite
@article{arxiv.gr-qc/9705038,
title = {Inhomogeneous imperfect fluid spherical models without Big-Bang singularity},
author = {Naresh Dadhich},
journal= {arXiv preprint arXiv:gr-qc/9705038},
year = {2009}
}
Comments
8 pages, LaTeX version