Time dependent G and Λ cosmological model in f(R,T) gravity

被引：0
|
作者：
Kumrah, Leishingam [1 ]
Singh, S. Surendra [1 ]
Devi, Lambamayum Anjana [1 ]
机构：
[1] NIT Manipur, Dept Math, Imphal 795004, Manipur, India
来源：
NEW ASTRONOMY | 2022年 / 93卷
关键词：
Friedmann Robertson Walker model f(R; T); gravity; Dark energy; Singularity; PROBE WMAP OBSERVATIONS; UNIVERSE;
D O I：
10.1016/j.newast.2021.101760
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We consider a homogeneous and isotropic cosmological model with the gravitational and cosmological constants generalized as coupling scalars in the framework of f(R,T) gravity. A general method of finding the exact solutions is established with the conditions satisfying G = G(0)a(n) and rho = rho(0)a(-m). We investigate the behaviors of G and Lambda with the evolution of Universe. Both Big Rip and future crunch are observed in this work. In this paper, we also present the a test of the energy conditions of the present model of the Universe and demonstrate that the consistency with the observational data can be achieved.
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页数：5
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