Abstract
We present bulk viscous Bianchi type V cosmological models with time-dependent cosmological term Λ. Exact solutions of Einstein field equations have been obtained by assuming shear scalar σ proportional to volume expansion θ. The coefficient of bulk viscosity is taken to be power function of energy density ρ or volume expansion θ. In these models cosmological term Λ come out to be negative. It is found that models obtained are expanding, shearing and non-rotating. They do not approach isotropy for large values of time t. Some observational parameters for the model have also been discussed.
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Singh, J.P., Baghel, P.S. Bulk Viscous Bianchi Type V Cosmological Models with Decaying Cosmological Term Λ. Int J Theor Phys 49, 2734–2744 (2010). https://doi.org/10.1007/s10773-010-0466-3
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DOI: https://doi.org/10.1007/s10773-010-0466-3