Observational constraints on modified CPL models for dark energy

被引：1

作者：

Sardar, Gopal ^{[1
]}

Chakraborty, Subenoy ^{[1
]}

机构：

[1] Jadavpur Univ, Dept Math, Kolkata 700032, West Bengal, India

来源：

INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS | 2024年 / 21卷 / 02期

关键词：

Cosmology; CPL model; dark energy; COSMOLOGICAL CONSTANT; SAMPLE;

D O I：

10.1142/S0219887824500506

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this paper, we consider two modified Chevallier-Polarski-Linder (CPL) models in the background of homogeneous and isotropic FLRW space-time model. From the observational dataset (Pantheon + BAO + HST) we find that the logarithmic form of the equation of state for the dark energy (model II) is more preferred with the use of AIC and BIC and tightly constrained than the other form of the equation of state parameter (model I). However, model I is more favored compared to the model II in the context of Bayesian evidence. Finally, for H0 tension it is found that model I is more preferable than model II.

引用

页数：12

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