Modified Chaplygin gas cosmology with bulk viscosity

被引：26
|
作者：
Benaoum, H. B. [1 ]
机构：
[1] Univ Sharjah, Dept Appl Phys, Sharjah, U Arab Emirates
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2014年 / 23卷 / 10期
关键词：
Dark energy; Chaplygin gas; modified Chaplygin gas cosmology; viscous cosmology; UNIFIED DARK-MATTER; ENERGY COMPONENT; CONSTRAINTS; UNIVERSE; STATEFINDER; CONSTANT; EQUATION; MODEL;
D O I：
10.1142/S0218271814500825
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this paper, we investigate the viscous modified Chaplygin gas cosmological model. Solutions for different values of the viscosity parameter are obtained using both analytical and numerical methods. We have calculated the deceleration and defined newly statefinder {r, s} pair in D dimensions. It is shown that when D = 4, the usual statefinder parameters are recovered. Furthermore, we apply the statefinder diagnostic to the MCG model with and without viscosity in D dimensions and explore these parameters graphically.
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页数：11
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