Title of article
Accelerating Bianchi type-VI0 bulk viscous cosmological models in Lyra geometry
Author/Authors
Asgar, A. North-Eastern Hill University - Department of Mathematics, India , Ansari, M. North-Eastern Hill University - Department of Mathematics, India
From page
219
To page
224
Abstract
The present study deals with spatially homogeneous and totally anisotropic Bianchi type-VI0 bulk viscous cosmological models in Lyra geometry. The Einstein’s field equations have been solved exactly by taking the shear (r) in the model proportional to expansion scalar (θ) which leads to A = B^n, where A and B are metric functions and n is a positive constant (n 1). We also adopt a condition ζθ=L (constant) where ζ is the coefficient of bulk viscosity. It has been found that the displacement vector (β) is a decreasing function of time and it approaches to a small positive value at late time which is supported by recent observations. It is also found that the distance modulus curve of derived model matches with observations perfectly.
Keywords
Bianchi type , VI0 universe . Accelerated expansion . Bulk viscosity . Lyra geometry
Journal title
Journal of Theoretical and Applied Physics
Journal title
Journal of Theoretical and Applied Physics
Record number
2657783
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