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- W2999282016 abstract "Abstract In this paper, we have investigated a flat FLRW (Friedmann Lemaitre Robertson Walker metric) cosmological model in f(R, T) gravity with specific Hubble parameter. We have considered f ( R , T ) = f ( R ) + 2 f ( T ) where f ( R ) = R + α R 2 , f ( T ) = λ T and R is Ricci scalar, T the trace of energy momentum tensor. To obtain exact solutions of modified Einstein’s field equation, we have considered a specific Hubble parameter H ( a ) = l ( a − n + k ) which gives the scale factor a ( t ) = [ e k l n ( t + m ) − 1 k ] 1 n where n > 0, k, l, m are arbitrary constants called model parameters. With this scale factor, we have obtained a transit phase cosmological model with variable deceleration parameter (DP). We have compared our results with observational constraints obtained from various observations by using the curve-fitting techniques and found that the derived model is a transit dark energy model quintessence ( ω > − 1 ) at present ( ω 0 ≈ − 0.7406 ) and approaches to cosmological constant value ( ω = − 1 ) at late time universe. The transition point is found as z t c ≈ 0.676 which is in good agreement with the recent observations. Also, the derived model explains formation of different structures in the universe from past to present scenarios." @default.
- W2999282016 created "2020-01-23" @default.
- W2999282016 creator A5034294948 @default.
- W2999282016 date "2020-05-01" @default.
- W2999282016 modified "2023-09-26" @default.
- W2999282016 title "Transit cosmological model with specific Hubble parameter in F(R, T) gravity" @default.
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- W2999282016 doi "https://doi.org/10.1016/j.newast.2020.101355" @default.
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