A comprehensive analysis of Barrow holographic Chaplygin gas model reconstruction and its cosmological consequences

IF 5 2区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Physics of the Dark Universe Pub Date : 2025-02-12 DOI:10.1016/j.dark.2025.101843

Sanjeeda Sultana , Chayan Ranjit , Surajit Chattopadhyay

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引用次数: 0

Abstract

In the current study, we have reconstructed variable modified Chaplygin gas in the Barrow holographic dark energy framework motivated by many recent studies. We have validated the generalized second law of thermodynamics for the reconstructed model. The permissible values of the reconstructed model have been determined by the recent astrophysical and cosmological observational data. The Hubble parameter is presented in terms of the observable parameters and redshift

z

and other model parameters. From the Stern data set and joint data set of Stern with BAO and CMB observations, the bounds of the model parameters

(B_{0}, Ω_{b h d 0})

are obtained by the

χ^{2}

minimization procedure. The best-fit value of the distance modulus

μ (z)

against redshift

z

is obtained for the reconstructed model and it is consistent with the SNe Ia union2 sample data.

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来源期刊

Physics of the Dark Universe ASTRONOMY & ASTROPHYSICS-

CiteScore

9.60

自引率

7.30%

发文量

118

审稿时长

61 days

期刊介绍： Physics of the Dark Universe is an innovative online-only journal that offers rapid publication of peer-reviewed, original research articles considered of high scientific impact. The journal is focused on the understanding of Dark Matter, Dark Energy, Early Universe, gravitational waves and neutrinos, covering all theoretical, experimental and phenomenological aspects.