No abstract

The cosmological implications of the generalized ghost dark energy model in the presence of varying gravitational constant is investigated. In particular, evolution of the cosmological parameters such as the equation of state and the deceleration parameters are studied. The investigation is also generalized to the more general case where there is a bulk viscosity in the cosmic fluids. It is shown that by taking 0 < △ G ≤ 0.07, ξ = 0.01 and assuming Ω 0 D = 0.73 for the present time, we find −0.80 < w 0 D ≤ −0.78 and −0.41 < q 0 ≤ −0.36 for the present ranges of the equation of state and the deceleration parameters. This values are consistent with the recent observations.