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Modeling of Accelerating Universe with Bulk Viscous Fluid in Bianchi V Space‐Time

G. K. Goswami, Anil Kumar Yadav, B. Mishra, S. K. Tripathy

2021Fortschritte der Physik27 citationsDOIOpen Access PDF

Abstract

Abstract In this paper, we have investigated a bulk viscous anisotropic Universe and constrained its model parameters with recent and Pantheon compilation data. Using cosmic chronometric technique, we estimate the present value of Hubble's constant as , and by bounding our derived model with recent data, Pantheon and joint and Pantheon data respectively. The present age of the Universe is specified as Gyrs. The model favours a transitioning Universe with the transition red‐shift as . We have reconstructed the jerk parameter using the observational data sets. From the analysis of the jerk parameter, it is observed that, our derived model shows a marginal departure from the concordance ΛCDM model.

Topics & Concepts

Deceleration parameterHubble's lawPhysicsJerkAge of the universeUniverseMathematical physicsLambdaCosmological constantCosmologyDe Sitter universeCosmological modelAstrophysicsClassical mechanicsDark energyAccelerationQuantum mechanicsCosmology and Gravitation TheoriesGalaxies: Formation, Evolution, PhenomenaBlack Holes and Theoretical Physics
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