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.

引用

页数：5

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