Transit cosmological models in F(R,T¯) gravity theory
Maurya D.C. Myrzakulov R.
May 2024Springer Nature
European Physical Journal C
2024#84Issue 5
In the present paper, we investigate some exact cosmological models in F(R,T¯) gravity theory. We have considered the arbitrary function F(R,T¯)=R+λT¯ where λ is an arbitrary constant, R,T¯ are respectively, the Ricci-scalar curvature and the torsion. We have solved the field equations in a flat FLRW spacetime manifold for Hubble parameter and using the MCMC analysis, we have estimated the best fit values of model parameters with 1-σ,2-σ,3-σ regions, for two observational datasets like H(z) and Pantheon SNe Ia datasets. Using these best fit values of model parameters, we have done the result analysis and discussion of the model. We have found a transit phase decelerating-accelerating universe model with transition redshifts zt=0.4438-0.0790+0.1008,0.3651-0.0904+0.1644. The effective dark energy equation of state varies as -1≤ωde≤-0.5176 and the present age of the universe is found as t0=13.8486-0.0640+0.1005,12.0135-0.2743+0.6206 Gyrs, respectively for two datasets.
Text of the article Перейти на текст статьи
Centre for Cosmology, Astrophysics and Space Science, GLA University, Uttar Pradesh, Mathura, 281 406, India
Eurasian International Centre for Theoretical Physics and Department of General and Theoretical Physics, Eurasian National University, Astana, 010008, Kazakhstan
Centre for Cosmology
Eurasian International Centre for Theoretical Physics and Department of General and Theoretical Physics
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026