2017•arXiv (Cornell University)Open access

Bulk viscous cosmological model in Brans Dicke theory with new form of time varying deceleration parameter

G. P. Singh, Bïnaya K. Bishi

Abstract

In this article we have presented FRW cosmological model in the framework of Brans-Dicke theory. This paper deals with a new proposed form of deceleration parameter and cosmological constant. The effect of bulk viscosity is also studied in the presence of modified Chaplygin gas equation of state. Further, we have discussed the physical behaviors of the models.

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Key concepts: Friedmann–Lemaître–Robertson–Walker metric, Deceleration parameter, Brans–Dicke theory, Physics, Volume viscosity, Chaplygin gas, Equation of state, Cosmological model