Cosmic and thermodynamics consequences of Chaplygin–Jacobi corrected HDE model

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

Physics of the Dark Universe Pub Date : 2025-02-01 DOI:10.1016/j.dark.2025.101819

Nadeem Azhar , Shamaila Rani , Abdul Jawad , Mohammad Mahtab Alam , Sanjar Shaymatov

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引用次数: 0

Abstract

In this study, we investigate a cosmologically compatible model of the universe using the generalized Chaplygin–Jacobi gas framework. The holographic generalized Chaplygin–Jacobi gas model presents an advanced approach to analyzing dark energy behavior and its role in cosmic evolution. This model brings together ideas from holographic dark energy, generalized Chaplygin gas and Jacobi gas theories. We assume that dark energy sources can be described as generalized Chaplygin–Jacobi gas, associating the Hubble horizon with the Chaplygin scalar field and incorporating specific elliptic identities. In this context, we explore the equation of state parameter,

ω - ω^{'}

plane and

O m

diagnostics. To assess model stability, we analyze the squared speed of sound and examine the validity of the generalized second law of thermodynamics/thermal condition. Additionally, we evaluate the model’s energy density and pressure to compare its correspondence with the Chaplygin scalar field model. Overall, our findings suggest that the constraints align well with current observational 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.