FRIEDMANN COSMOLOGY WITH LATE TIME ACCELERATION

摘要

In this paper, we study flat FRW universe in the presence of cosmological term A and bulk viscous fluid. We have solved the field equations analytically by assuming deceleration parameter q in the model to be a suitable function of Hubble parameter H which yields time dependent deceleration parameterq. The model of universe represents earlier decelerating and the current accelerating universe passing through a transition phase. Physical, geometric and kinematic behaviour of the model has been also discussed along with stability of the result. The solutions are found very compatible with recent astrophysical observations.