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

TL;DR

This paper explores anisotropic Bianchi V universe models within $f(R,T)$ gravity, constraining parameters using observational data and finding results consistent with recent cosmological measurements.

Contribution

It introduces a Bianchi V universe model in $f(R,T)$ gravity with a specific Lagrangian and constrains its parameters using multiple observational datasets.

Findings

Hubble parameter estimates align with Planck results

Model fits observational data well

Constraints on $f(R,T)$ model parameters are established

Abstract

We try to find the possibility of a Bianchi V universe in the modified gravitational field theory of $f(R,T)$. We have considered a Lagrangian model in the 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 constraints 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 since our estimation of this $H_0$ is remarkably consistent with various recent Planck Collaboration studies that utilize the $\Lambda$-CDM model.