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Anisotropic Universes Sourced by Modified Chaplygin Gas
Version 1
: Received: 28 July 2023 / Approved: 31 July 2023 / Online: 1 August 2023 (13:48:48 CEST)
A peer-reviewed article of this Preprint also exists.
Ray, S.; Tripathy, S.K.; Sengupta, R.; Bal, B.; Rout, S.M. Anisotropic Universes Sourced by Modified Chaplygin Gas. Universe 2023, 9, 453. Ray, S.; Tripathy, S.K.; Sengupta, R.; Bal, B.; Rout, S.M. Anisotropic Universes Sourced by Modified Chaplygin Gas. Universe 2023, 9, 453.
Abstract
In this work we perform a comparative study of the Kantowski-Sachs (KS) and Bianchi-I anisotropic universes with Modified Chaplygin gas (MCG) as matter source. We obtain the volume and scale factors as solutions to the Einstein Field Equations (EFEs) for the anisotropic universes, and check whether the initial anisotropy is washed out or not for different values of the MCG parameters present in the solution by obtaining the anisotropy parameters for each solution. The deceleration parameter is also obtained for each solution, the significance of which is discussed in the concluding section. Interestingly there are a number of notable results that appear from our study which help us to compare and contrast the two different anisotropic models along with proper understanding of the role of MCG as matter source in these models.
Keywords
Anisotropic universe; Modified Chaplygin gas; Cosmological constant; Deceleration parameter
Subject
Physical Sciences, Astronomy and Astrophysics
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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