Anisotropic Bianchi type-I models with constant deceleration parameter in general relativity

被引：70

作者：

Kumar, Suresh ^{[1
]}

Singh, C. P. ^{[1
]}

机构：

[1] Delhi Coll Engn, Dept Appl Math, Delhi 110042, India

来源：

ASTROPHYSICS AND SPACE SCIENCE | 2007年 / 312卷 / 1-2期

关键词：

Hubble's parameter; deceleration parameter; cosmological models; Bianchi space-time;

D O I：

10.1007/s10509-007-9623-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A special law of variation for Hubble's parameter is presented in a spatially homogeneous and anisotropic Bianchi type-I space-time that yields a constant value of deceleration parameter. Using the law of variation for Hubble's parameter, exact solutions of Einstein's field equations are obtained for Bianchi-I space-time filled with perfect fluid in two different cases where the universe exhibits power-law and exponential expansion. It is found that the solutions are consistent with the recent observations of type Ia supernovae. A detailed study of physical and kinematical properties of the models is carried out.

引用

页码：57 / 62

页数：6

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