Mixed fluid cosmological model in $f(R,T)$ gravity
| Autor: | Sahoo, Parbati, Taori, Barkha, Mahanta, K. L. |
|---|---|
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Canadian Journal of Physics, vol. 98, issue 11, pp 109, (2020) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1139/cjp-2019-0494 |
| Popis: | We construct Locally Rotationally Symmetric (LRS) Bianchi type-I cosmological model in $f(R,T)$ theory of gravity when the source of gravitation is the mixture of barotropic fluid and dark energy (DE) by employing a time varying deceleration parameter (DP). We observe through the behavior of the state finder parameters $(r, s)$ that our model begins from the Einstein static era and goes to $\Lambda$CDM era. The EoS parameter($\omega_d$) for DE varies from phantom ($\omega<-1$) phase to quintessence ($\omega >-1$) phase which is consistent with the observational results. It is found that the discussed model can reproduce the current accelerating phase of expansion of the universe. Comment: 9 pages, 7 figures, accepted version for publication in Canadian Journal of Physics |
| Databáze: | arXiv |
| Externí odkaz: |
|