Stability of viscous fluid in Bianchi type-VI model with cosmological constant

被引：15
|
作者：
Sadeghi, J. [1 ]
Amani, Ali R. [2 ]
Tahmasbi, N. [1 ]
机构：
[1] Mazandaran Univ, Dept Phys, Fac Basic Sci, Babol Sar, Iran
[2] Islamic Azad Univ, Ayatollah Amoli Branch, Dept Phys, Fac Basic Sci, Amol, Iran
来源：
ASTROPHYSICS AND SPACE SCIENCE | 2013年 / 348卷 / 02期
关键词：
Dark energy; Bianchi type-VI model; Viscous fluid; Cosmological constant; UNIVERSE;
D O I：
10.1007/s10509-013-1579-y
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this paper, we investigate Bianchi type-VI cosmological model for the universe filled with dark energy and viscous fluid in the presence of cosmological constant. Also, we show accelerating expansion of the universe by drawing volume scale, pressure and energy density versus cosmic time. In order to solve the Einstein's field equations, we assume the expansion scalar is proportional to a component of the shear tensor. Therefore, we obtain the directional scale factors and show the EOS parameter crosses over phantom divided-line.
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页码：559 / 564
页数：6
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