探索交互精髓模型作为$$\Lambda$$CDM模型替代方案的可能性

IF 2.1 4区 物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS
Nandan Roy
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引用次数: 0

摘要

本研究考察了相互作用的精髓暗能量模型及其对精髓势的一般参数化的观测约束,其中包括广泛的流行势。考虑了四种不同形式的相互作用。分析是通过将系统表示为每次交互的一组自主方程来完成的。贝叶斯模型比较已用于将这些模型与标准Lambda冷暗物质(\(\Lambda\)CDM)模型进行比较。我们的分析显示了在\(\Lambda\)CDM模型上相互作用模型的积极和适度证据。我们还报告了这些模型的哈勃张力的状态,尽管哈勃参数的最佳拟合值有所增加,但这些模型无法解决哈勃张力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Exploring the possibility of interacting quintessence model as an alternative to the \(\Lambda \)CDM model

This study examines interacting quintessence dark energy models and their observational constraints for a general parameterization of the quintessence potential, which encompasses a broad range of popular potentials. Four different forms of interactions are considered. The analysis is done by expressing the system as a set of autonomous equations for each interaction. The Bayesian Model Comparison has been used to compare these models with the standard Lambda Cold Dark Matter (\(\Lambda \)CDM) model. Our analysis shows positive and moderate evidence for the interacting models over the \(\Lambda \)CDM model. We also report the status of the Hubble tension for these models, even though there is an increment in the best-fit value of the Hubble parameters, these models can not resolve the Hubble tension.

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来源期刊
General Relativity and Gravitation
General Relativity and Gravitation 物理-天文与天体物理
CiteScore
4.60
自引率
3.60%
发文量
136
审稿时长
3 months
期刊介绍: General Relativity and Gravitation is a journal devoted to all aspects of modern gravitational science, and published under the auspices of the International Society on General Relativity and Gravitation. It welcomes in particular original articles on the following topics of current research: Analytical general relativity, including its interface with geometrical analysis Numerical relativity Theoretical and observational cosmology Relativistic astrophysics Gravitational waves: data analysis, astrophysical sources and detector science Extensions of general relativity Supergravity Gravitational aspects of string theory and its extensions Quantum gravity: canonical approaches, in particular loop quantum gravity, and path integral approaches, in particular spin foams, Regge calculus and dynamical triangulations Quantum field theory in curved spacetime Non-commutative geometry and gravitation Experimental gravity, in particular tests of general relativity The journal publishes articles on all theoretical and experimental aspects of modern general relativity and gravitation, as well as book reviews and historical articles of special interest.
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