FRW cosmology in f (R, T) gravity

被引：48

作者：

Godani, Nisha ^{[1
]}

机构：

[1] GLA Univ, Inst Appl Sci & Humanities, Dept Math, Mathura, Uttar Pradesh, India

来源：

INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS | 2019年 / 16卷 / 02期

关键词：

Age of the universe; cosmology; apparent magnitude; luminosity distance; PERFECT FLUID; F(R; T); THEORY; UNIVERSE; CURVATURE; SEQUENCE; MODELS;

D O I：

10.1142/S0219887819500245

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In the present paper, the work of Moreas et al. [P. H. R. S. Moraes, G. Ribeiro and R. A. C. Correa, A transition from a decelerated to an accelerated phase of the universe expansion from the simplest non-trivial polynomial function of T in the f (R, T) formalism, Astrophys. Space Sci. 361 (2016) 227-2311 is extended to study the FRW model in f (R, T) gravity. The expressions for deceleration and Hubble parameters are determined in terms of redshift. The age of the universe is established using 42 high-redshift type Ia supernovae data from the Supernova cosmology project and 15 low-redshift type Ia supernovae data from the Calhn/Tolono Supernova survey [S. Permutter et al., Measurements of Omega and Lambda from 42 High-Redshift Supernovae, Astrophys. J. 517 (1999) 565-585]. For these redshifts, the data of observed apparent magnitude and luminosity distance are used for the comparison with the obtained theoretical values.

引用

页数：13

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