Kantowski-Sachs Universe with Anisotropic Dark Energy in Brans-Dicke Gravity Theory

Abstract

A spatially homogeneous Kantowski-Sachs universe filled with anisotropic dark energy is investigated within the framework of Brans-Dicke gravity theory. We obtain exact solution to the field equations by utilizing a special form of the Hubble parameter that yields a time-varying deceleration parameter. We discuss the physical and kinematical features of early decelerating and late-time accelerating model of the universe. We observe that the anisotropic universe approaches isotropy for large time through its evolution, which is consistent with the recent observations on present-day universe. For large time, the universe achieves the de-sitter phase and expands forever with the dominance of dark energy.