Robertson-Walker cosmological models with perfect fluid in general relativity

被引：3
|
作者：
Tiwari, Rishi Kumar [1 ]
机构：
[1] Govt Model Sci Coll Rewa MP, Dept Math, Rewa 486001, Madhya Pradesh, India
来源：
RESEARCH IN ASTRONOMY AND ASTROPHYSICS | 2011年 / 11卷 / 07期
关键词：
cosmological parameters; cosmology: variable cosmological term; DECAYING LAMBDA-COSMOLOGIES; HUBBLE-SPACE-TELESCOPE; BRANS-DICKE COSMOLOGY; TIME-DEPENDENT G; UNIVERSE; CONSTANT; TERM; CONSTRAINTS; DENSITY; DECELERATION;
D O I：
10.1088/1674-4527/11/7/003
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Einstein's field equations with variable gravitational and cosmological constants are considered in the presence of perfect fluid for a Robertson-Walker universe by assuming the cosmological term to be proportional to R-m (R is a scale factor and m is a constant). A variety of solutions is presented. The physical significance of the cosmological models has also been discussed.
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页码：767 / 775
页数：9
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