• BULK VISCOUS BIANCHI TYPE III COSMOLOGICAL MODEL WITH TIME DEPENDENT g AND

Abstract

We investigate anisotropic Bianchi Type III cosmological model with bulk viscosity in the presence of time-varying gravitational constant and cosmological constant . To get deterministic solution, the viscous coefficient of bulk viscous fluid is assumed to be power function of mass density. It is found that the cosmological constant is positive and a decreasing function of time. The expression for proper distance, luminosity distance, angular diameter distance, look back time and distance modulus curve are analyzed and also the distance modulus curve of derived model nearly matches with Supernova Ia (SN Ia) observations.