Anisotropic cosmological models with bulk viscosity for variable G and Λ

被引：8
|
作者：
Chakraborty, Subenoy [1 ]
Roy, Anusua [1 ]
机构：
[1] Jadavpur Univ, Dept Math, Kolkata 700032, W Bengal, India
来源：
ASTROPHYSICS AND SPACE SCIENCE | 2008年 / 313卷 / 04期
关键词：
anisotropy; bulk viscosity; variation of fundamental constants;
D O I：
10.1007/s10509-007-9708-0
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this paper we have considered axially symmetric Bianchi-I, Kantowski Sachs and Bianchi-III space-time models with bulk viscosity, where the gravitational constant G and the cosmological term Lambda vary with time. In Einstein equations this variation in G and Lambda are taken in such a way as to preserve the energy momentum tensor. Solutions are obtained with the cosmological term varying inversely with square of time.
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页码：389 / 392
页数：4
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