TITLE:
Bulk Viscous Anisotropic Cosmological Models with Generalized Chaplygin Gas with Time Varying Gravitational and Cosmological Constants
AUTHORS:
Shubha Kotambkar, Gyan Prakash Singh, Rupali Kelkar
KEYWORDS:
Bianchi Type III, Bulk Viscosity, Cosmological Constant, Gravitational Constant, Generalized Chaplygin Gas
JOURNAL NAME:
Natural Science,
Vol.7 No.6,
June
9,
2015
ABSTRACT: This paper is devoted to studying the generalized Chaplygin gas models in Bianchi type III space- time geometry with time varying bulk viscosity, cosmological and gravitational constants. We are considering the condition on metric potential . Also to obtain deterministic models we have considered physically reasonable relations like , and the equation of state for generalized Chaplygin gas given by . A new set of exact solutions of Einstein’s field equations has been obtained in Eckart theory, truncated theory and full causal theory. Physical behaviour of the models has been discussed.