Status of early dark energy after DESI: The role of Ωm and rsH0

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

Physics of the Dark Universe Pub Date : 2025-03-28 DOI:10.1016/j.dark.2025.101902

Jun-Qian Jiang

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引用次数: 0

Abstract

The EDE model is one of the promising solutions to the long-standing Hubble tension. This paper investigates the status of several EDE models in light of recent BAO observations from the Dark Energy Spectroscopic Instrument (DESI) and their implications for resolving the Hubble tension. The DESI Y1 BAO results deviate from the CMB and Type Ia supernova (SNeIa) observations in their constraints on the matter density

Ω_{m}

and the product of the sound horizon and the Hubble constant

r_{s} H_{0}

. Meanwhile, these EDE models happen to tend towards this deviation. Therefore, in this work, it is found that DESI Y1 BAO results strengthen the preference for EDE models and help to obtain a higher

H_{0}

. Even considering the Pantheon+ observations for SNeIa, which have an opposite tendency, DESI still dominates the preference for EDE. This was unforeseen in past SDSS BAO measurements and therefore emphasizes the role of BAO and SNeIa measurements in Hubble tension.

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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.