Power law cosmology in modified theory with thermodynamics analysis

Singh, J.K.; Shaily,; Pradhan, Anirudh; Beesham, Aroonkumar

doi:10.1016/j.dark.2024.101658

Physics of the Dark Universe

2024

DOI: 10.1016/j.dark.2024.101658

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Power law cosmology in modified theory with thermodynamics analysis

J.K. Singh,

Shaily,

Anirudh Pradhan

et al.

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Cited by 3 publications

References 98 publications

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Gupta,

Pradhan

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Computation of bulk viscous pressure with observational constraints via scalar field in the General relativity and f(Q) gravity

Dixit,

Gupta,

Pradhan

et al. 2024

Astronomy and Computing

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Power law cosmology in Gauss-Bonnet gravity with pragmatic analysis

Rani,

Shaily,

Goswami

et al. 2025

Journal of High Energy Astrophysics

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Evolution of the Universe with quintessence model in Rastall gravity

Singh,

Ghosh

et al. 2024

Phys. Scr.

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We investigate the universe's evolution within the framework of Rastall gravity, which is an extension of the standard $\Lambda$CDM model. Utilizing a linear parametrization of the Equation of State (EoS) in a Friedmann-Lema\^{\i}tre-Robertson-Walker (FLRW) background, we constrain the model parameters through analysis of cosmic chronometers (CC), Pantheon, Gold, Gamma Ray Burst (GRB), and Baryon Acoustic Oscillations (BAO) datasets, as well as their joint analysis, under $1\sigma$ and $2\sigma$ confidence levels, considering the Rastall parameter $\lambda$. The constrained parameters are then used to compare our model with the standard $\Lambda$CDM model. Our findings include a detailed examination of the model's physical interpretations and demonstrate the potential for an accelerating universe expansion in later times, aligning with the observed behavior of dark energy.

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Power law cosmology in modified theory with thermodynamics analysis

Cited by 3 publications

References 98 publications

Computation of bulk viscous pressure with observational constraints via scalar field in the General relativity and f(Q) gravity

Computation of bulk viscous pressure with observational constraints via scalar field in the General relativity and f(Q) gravity

Power law cosmology in Gauss-Bonnet gravity with pragmatic analysis

Evolution of the Universe with quintessence model in Rastall gravity

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