LRS Bianchi Type-V Viscous Fluid Universe With a Time Dependent Cosmological Term $Λ$

Details LRS Bianchi Type-V Viscous Fluid Universe With a Time Dependent Cosmological Term $Λ$ LRS Bianchi Type-V Viscous Fluid Universe With a Time Dependent Cosmological Term $Λ$

2007-04-06

arxiv.org/abs/0704.0849v2

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

13 pages, no figure

Scientific paper

An LRS Bianchi type-V cosmological models representing a viscous fluid distribution with a time dependent cosmological term $\Lambda$ is investigated. To get a determinate solution, the viscosity coefficient of bulk viscous fluid is assumed to be a power function of mass density. It turns out that the cosmological term $\Lambda(t)$ is a decreasing function of time, which is consistent with recent observations of type Ia supernovae. Various physical and kinematic features of these models have also been explored.

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