Bulk Viscous Bianchi Type I Cosmological Models with Time-Dependent Cosmological Term Λ
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- Bali, R. & Singh, J.P. Int J Theor Phys (2008) 47: 3288. doi:10.1007/s10773-008-9764-4
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Bianchi type I cosmological models with time-varying cosmological constant Λ and bulk viscous fluid are investigated. Cosmic matter is chosen to obey a barotropic equation of state. Exact solutions of Einstein’s field equations are obtained assuming the volume expansion θ proportional to the eigen values of shear tensor σij. Physical and kinematical properties of the models are discussed considering bulk viscosity to be a power function of matter density.