Locally-rotationally-symmetric Bianchi type-V cosmology with heat flow

Pramana

A Beesham2²  C P Singh1¹ 

[1] Department of Applied Mathematics, Delhi College of Engineering, Bawana Road, Delhi 110 042, India$$;Department of Mathematical Sciences, University of Zululand, Private Box X1001, Kwa-Dlangezwa 3886, South Africa$$

关键词: Cosmology;    Bianchi models;    inflationary phase;    Hubble parameter;    deceleration parameter.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

In this paper we present a spatially homogeneous locally-rotationally-symmetric (LRS) Bianchi type-V cosmological model with perfect fluid and heat flow. A general approach is introduced to solve Einstein’s field equations using a law of variation for the mean Hubble parameter, which is related to average scale factor of the model that yields a constant value for the deceleration parameter. Exact solutions that correspond to singular and non-singular models are found with heat flow. The physical constraints on the solution and, in particular, the thermodynamical laws that govern such solutions are discussed in some detail.

【 授权许可】

Unknown