Friedmann-Robertson-Walker Models with Late-Time Acceleration
arXiv:1604.03804 · doi:10.1088/0256-307X/28/2/029803
Abstract
In order to account for the observed cosmic acceleration, a modification of the ansatz for the variation of density in Friedman-Robertson-Walker (FRW) models given by Islam is proposed. The modified ansatz leads to an equation of state which corresponds to that of a variable Chaplygin gas, which in the course of evolution reduces to that of a modified generalized Chaplygin gas (MGCG) and a Chaplygin gas (CG), exhibiting late-time acceleration.
arXiv comment7 pages, 0 figures
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