Universe With Time Dependent Deceleration Parameter and $Λ$ Term in General Relativity
Abstract
Description
A new class of exact solutions of Einstein's field equations with perfect fluid for an LRS Bianchi type-I spacetime is obtained by using a time dependent deceleration parameter. We have obtained a general solution of the field equations from which three models of the universe are derived: exponential, polynomial and sinusoidal form respectively. The behaviour of these models of the universe are also discussed in the frame of reference of recent supernovae Ia observations.
14 pages, 9 figures. Astrophys. Space Sci. (2006), to appear
14 pages, 9 figures. Astrophys. Space Sci. (2006), to appear