Anisotropic Cosmological Model in a Modified Theory of Gravitation
نویسندگان
چکیده
Current observations indicate that, on a large enough scale, the universe is homogeneous and isotropic. However, this does not preclude possibility of some anisotropy having occurred during early stages evolution universe, which could then have been damped out later. This idea has aroused interest in Bianchi models, are but anisotropic. Secondly, there much modified gravity these days due to problems that usual ΛCDM model faces general relativity. Hence, paper, study was conducted type-I cosmological f(R,T)-modified gravity. Following ideas from cosmography, specific form deceleration parameter assumed, leading exhibited transition late-time acceleration. The derived approached isotropy at late times. physical properties were discussed, expressions for various parameters derived. It also possible make progress towards solving constant problem, since f(R,T) gravity, variable cosmological-type arose, decreased value later
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ژورنال
عنوان ژورنال: Universe
سال: 2021
ISSN: ['2218-1997']
DOI: https://doi.org/10.3390/universe7070226