论文标题
来自JWST早期观察的高红移星系：黑暗能源模型的约束
High-Redshift Galaxies from Early JWST Observations: Constraints on Dark Energy Models
论文作者
论文摘要
与JWST进行的早期观察导致发现了意外的大密度（恒星质量密度$ρ_*\大约10^{6} \，M _ {\ odot} \，mpc^{ - 3} $的大型星系（恒星质量$ m_**$ _*$ geq 10^^\ od} Moseve a { - 3} $ { RedShifts $ z \大约10美元。我们表明，在最保守的假设和与银河形成有关的Baryon物理学无关的情况下，这种丰度不仅与标准的$λ$ CDM宇宙学紧张，而且对宇宙的扩张历史以及与广泛的黑暗能源（DE）模型相关的生长因子提供了极大的限制。我们以高（$>2σ$）置信度得出规则的约束，这是通过现有宇宙学探针允许（甚至偏爱）的动态DE模型参数空间的主要部分。
Early observations with JWST have led to the discovery of an unexpected large density (stellar mass density $ρ_*\approx 10^{6}\,M_{\odot}\,Mpc^{-3}$) of massive galaxies (stellar masses $M_*\geq 10^{10.5}M_{\odot}$) at extremely high redshifts $z\approx 10$. We show that - under the most conservative assumptions, and independently of the baryon physics involved in galaxy formation - such abundance is not only in tension with the standard $Λ$CDM cosmology, but provides extremely tight constraints on the expansion history of the Universe and on the growth factors corresponding to a wide class of Dark Energy (DE) models. The constraints we derive rule out with high ($>2σ$) confidence level a major portion of the parameter space of Dynamical DE models allowed (or even favoured) by existing cosmological probes.
