Cosmological models in general relativity

Pramana

B B Paul¹ 

[1] Department of Physics, Nowgong College, Nagaon, Assam, India$$

关键词: Cosmology;    LRS Bianchi type-I;    Hubble’s constant.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

LRS Bianchi type-I space-time filled with perfect fluid is considered here with deceleration parameter as variable. The metric potentials 𝐴 and 𝐵 are functions of 𝑥 as well as 𝑡. Assuming 𝐵'/𝐵=𝑓(𝑥), where prime denotes differentiation with respect to 𝑥, it was found that 𝐴 =(𝑙'/𝑙)𝐵 and 𝐵 =𝑙𝑆(𝑡), where 𝑙 =𝑓(𝑥) and 𝑆 is the scale factor which is a function of 𝑡 only. The value of Hubble’s constant 𝐻0 was found to be less than half for non-flat model and is equal to 1.3 for a flat model.

【 授权许可】

Unknown