Anisotropic dark energy models with constant deceleration parameter

被引：55

作者：

Kumar, Suresh ^{[1
]}

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

机构：

[1] Delhi Technol Univ, Dept Appl Math, Delhi 110042, India

来源：

GENERAL RELATIVITY AND GRAVITATION | 2011年 / 43卷 / 05期

基金：

英国科研创新办公室;

关键词：

Bianchi space-time; Anisotropic dark energy; Constant deceleration parameter; Cosmological models; I SPACE-TIME; COSMOLOGICAL MODELS; OMEGA(LAMBDA); CONSTRAINTS; SUPERNOVAE; OMEGA(M);

D O I：

10.1007/s10714-010-1125-y

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider a spatially homogeneous and totally anisotropic Bianchi-I space-time with perfect fluid (dark matter and standard visible matter) and anisotropic dark energy, which has dynamical energy density. The two sources are assumed to interact minimally and therefore their energy momentum tensors are conserved separately. Using suitable physical assumptions, the field equations are solved exactly. Various dark energy models are studied and it is found that quintessence model is suitable for describing the present evolution of the universe. The geometrical and kinematical features of the models and the behavior of the anisotropy of the dark energy, are examined in detail.

引用

页码：1427 / 1442

页数：16

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