Constraining anisotropic universe under f (R, T ) theory of gravity

被引:0
作者
Sharma, Lokesh Kumar [1 ]
Parekh, Suresh [2 ]
Ray, Saibal [3 ]
Yadav, Anil Kumar [4 ]
机构
[1] GLA Univ, Dept Phys, Mathura 281406, Uttar Pradesh, India
[2] SP Pune Univ, Dept Phys, Pune 411007, Maharastra, India
[3] GLA Univ, Ctr Cosmol Astrophys & Space Sci CCASS, Mathura 281406, Uttar Pradesh, India
[4] United Coll Engn & Res, Dept Phys, Greater Noida 201310, India
关键词
Cosmological parameters; Observational constraints; Om diagnostics; Cosmography; MCMC method; DARK ENERGY; COSMOLOGICAL CONSTANT; ACCELERATING UNIVERSE; MODELS; F(R; RECONSTRUCTION;
D O I
10.1016/j.jheap.2024.11.001
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We investigate the possibility of a Bianchi V universe in the modified gravitational field theory of f(R,T). We have considered a Lagrangian model in connection between the trace of the energy-momentum tensor T and the Ricci scalar R . In order to solve the field equations a power law for the scaling factor was also considered. To make a comparison of the model parameters with the observational data we put constraint on the model under the datasets of the Hubble parameter, Baryon Acoustic Oscillations, Pantheon, joint datasets of Hubble parameter + Pantheon and collective datasets of the Hubble parameter + Baryon Acoustic Oscillations + Pantheon. The outcomes for the Hubble parameter in the present epoch are reasonably acceptable, especially our estimation of this H0 is remarkably consistent with various recent Planck Collaboration studies that utilize the Lambda-CDM model.
引用
收藏
页码:457 / 467
页数:11
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