Authors: J P Singh P S Baghel A Singh
Publish Date: 2015/01/25
Volume: 54, Issue: 8, Pages: 2740-2757
Abstract
Bianchi type V viscous fluid cosmological models with varying cosmological term Λ are investigated We have examined a cosmological scenario proposing expansion anisotropy σ/θ to be suitable function of average scale factor S in the background of homogeneous anisotropic Bianchi type V spacetime The models isotropize asymptotically and the presence of shear viscosity accelerates the isotropization Our models describe a unified expansion history of the universe indicating initial decelerating expansion and late time accelerating phase consistent with observations Physical and kinematical parameters of the models are discussed
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