Hypersurface Homogeneous Cosmological Model in Modified Theory of Gravitation
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 proportiona...
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| Veröffentlicht in: | Astrophysics 2016-12, Vol.59 (4), p.525-539 |
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| creator | Katore, S. D. Hatkar, S. P. Baxi, R. J. |
| description | 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. |
| doi_str_mv | 10.1007/s10511-016-9455-4 |
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| subjects | Astronomy Astrophysics and Astroparticles Astrophysics and Cosmology Computational fluid dynamics Cosmology Geometry Gravitation Gravity (Force) Mathematical analysis Mathematical models Observations and Techniques Physics Physics and Astronomy Physics research Scalars Space Exploration and Astronautics Space Sciences (including Extraterrestrial Physics Universe |
| title | Hypersurface Homogeneous Cosmological Model in Modified Theory of Gravitation |
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