我们宇宙的寿命

IF 5.9 2区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Journal of Cosmology and Astroparticle Physics Pub Date : 2025-09-17 DOI:10.1088/1475-7516/2025/09/055

Hoang Nhan Luu, Yu-Cheng Qiu and S.-H. Henry Tye

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引用次数: 0

摘要

暗能量测量（DES）和暗能量光谱仪器（DESI）的测量结果表明，暗能量状态方程w≠-1。这个观测结果可以用超轻轴子加宇宙常数Λ的轴子暗能量（aDE）模型来解释。尽管简并度相对较大，但Λ<0的概率很大。负的Λ导致宇宙在大收缩中结束。使用模型的最佳拟合值作为基准，我们发现宇宙的寿命为330亿年。

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The lifespan of our universe

The Dark Energy Survey (DES) and the Dark Energy Spectroscopic Instrument (DESI) measurements claim that the dark energy equation of state w ≠ -1. This observation can be explained by the axion Dark Energy (aDE) model of an ultralight axion plus a cosmological constant Λ. Despite a relatively large degeneracy, there is a high probability that Λ<0. This negative Λ leads the universe to end in a big crunch. Using the best-fit values of the model as a benchmark, we find the lifespan of our universe to be 33 billion years.

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来源期刊

Journal of Cosmology and Astroparticle Physics 地学天文-天文与天体物理

CiteScore

10.20

自引率

23.40%

发文量

632

审稿时长

1 months

期刊介绍： Journal of Cosmology and Astroparticle Physics (JCAP) encompasses theoretical, observational and experimental areas as well as computation and simulation. The journal covers the latest developments in the theory of all fundamental interactions and their cosmological implications (e.g. M-theory and cosmology, brane cosmology). JCAP''s coverage also includes topics such as formation, dynamics and clustering of galaxies, pre-galactic star formation, x-ray astronomy, radio astronomy, gravitational lensing, active galactic nuclei, intergalactic and interstellar matter.