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arXiv · 1202.3050

Bianchi Type V Viscous Fluid Cosmological Models in Presence of Decaying Vacuum Energy

Raj Bali·Pratibha Singh·J. P. Singh
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Abstract

Bianchi type V viscous fluid cosmological model for barotropic fluid distribution with varying cosmological term $Λ$ is investigated. We have examined a cosmological scenario proposing a variation law for Hubble parameter $H$ in the background of homogeneous, anisotropic Bianchi type V space-time. The model isotropizes asymptotically and the presence of shear viscosity accelerates the isotropization. The model describes a unified expansion history of the universe indicating initial decelerating expansion and late time accelerating phase. Cosmological consequences of the model are also discussed.

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Raj Bali, Pratibha Singh, J. P. Singh. 2012-02-13. Bianchi Type V Viscous Fluid Cosmological Models in Presence of Decaying Vacuum Energy. https://doi.org/10.1007/s10509-012-1134-2

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