VISCOUS MODIFIED COSMIC CHAPLYGIN GAS COSMOLOGY

被引：112

作者：

Pourhassan, B. ^{[1
]}

机构：

[1] IHU, Dept Phys, Tehran, Iran

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2013年 / 22卷 / 09期

关键词：

Bulk viscosity; cosmology; modified cosmic Chaplygin gas; dark energy; UNIFIED DARK-MATTER; ENERGY-MODEL; CONSTRAINTS; DENSITY; SUPERNOVAE; CONSTANT; UNIVERSE;

D O I：

10.1142/S0218271813500612

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper, we construct viscous modified cosmic Chaplygin gas as a model of dark energy. We use exponential function method to solve nonlinear equation and obtain time-dependent dark energy density. Then, we discuss Hubble expansion parameter and scale factor and fix them by using observational data. Effect of viscosity to the evolution of Universe is investigated. We also investigate stability of this theory.

引用

页数：15

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