Hypersurface Homogeneous Cosmological Model in Modified Theory of Gravitation
| Autor: | R. J. Baxi, Shivdas D. Katore, S. P. Hatkar |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Physics
010308 nuclear & particles physics media_common.quotation_subject Isotropy Scalar (mathematics) Astronomy and Astrophysics Perfect fluid Astrophysics 01 natural sciences Power law Universe Exponential function Gravitation Classical mechanics Hypersurface 0103 physical sciences 010303 astronomy & astrophysics Mathematical physics media_common |
| Zdroj: | Astrophysics. 59:525-539 |
| ISSN: | 1573-8191 0571-7256 |
| DOI: | 10.1007/s10511-016-9455-4 |
| Popis: | We study a hypersurface homogeneous space-time in the framework of the f (R, T) theory of gravitation in the presence of a perfect fluid. Exact solutions of field equations are obtained for exponential and power law volumetric expansions. We also solve the field equations by assuming the proportionality relation between the shear scalar (σ ) and the expansion scalar (θ ). It is observed that in the exponential model, the universe approaches isotropy at large time (late universe). The investigated model is notably accelerating and expanding. The physical and geometrical properties of the investigated model are also discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|