Isaac Scientific Publishing

Advances in Astrophysics

A General Bianchi Type Viscous Fluid Cosmological Model with Both Deceleration and Acceleration

Download PDF (479.4 KB) PP. 122 - 128 Pub. Date: August 1, 2016

DOI: 10.22606/adap.2016.12007

Author(s)

  • Shri Ram*
    Department of Mathematical Sciences, Indian Institute of Technology(BHU), Varanasi -2210 05, India
  • S. Chandel
    Department of Mathematical Sciences, Indian Institute of Technology(BHU), Varanasi -2210 05, India
  • M. K. Verma
    Department of Mathematics, BBD NITM Lucknow-227105, India

Abstract

In this paper, we obtain an anisotropic general Bianchi type cosmological model in the presence of a bulk viscous fluid. The exact solution of Einstein’s field equations is obtained by utilizing a special form of time-varying deceleration parameter that gives an early decelerating and late-time accelerating model of the universe. The physical and geometrical features of the cosmological model are discussed during the evolution of the universe. We observed that the universe accelerates in time and asymptotically tends towards a static homogeneous universe.

Keywords

General bianchi model, viscosity, deceleration, acceleration.

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