Causal Bulk Viscous LRS Bianchi I Models With Variable Gravitational and Cosmological "Constant"

Details Causal Bulk Viscous LRS Bianchi I Models With Variable Gravitational and Cosmological "Constant" Causal Bulk Viscous LRS Bianchi I Models With Variable Gravitational and Cosmological "Constant"

2003-10-04

arxiv.org/abs/gr-qc/0310023v2

SpacetimeandSubstance6:116-120,2005

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

9 pages, LaTex, typos added

Scientific paper

In this paper we have investigated an LRS Bianchi I anisotropic cosmological model of the universe by taking time varying $G$ and $\Lambda$ in the presence of bulk viscous fluid source described by full causal non-equilibrium thermodynamics. We obtain a cosmological constant as a decreasing function of time and for $m, n > 0$, the value of cosmological ``constant'' for this model is found to be small and positive which is supported by the results from recent supernovae observations.

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