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FRW cosmology in f (R, T) gravity
被引:44
|作者:
Godani, Nisha
[1
]
机构:
[1] GLA Univ, Inst Appl Sci & Humanities, Dept Math, Mathura, Uttar Pradesh, India
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.
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页数:13
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