论文标题

宇宙学模拟可以在$ z \ geq 10 $上繁殖光谱镜确认的星系吗?

Can Cosmological Simulations Reproduce the Spectroscopically Confirmed Galaxies Seen at $z\geq 10$?

论文作者

Keller, B. W., Munshi, F., Trebitsch, M., Tremmel, M.

论文摘要

最近,JWST的极端$(Z> 10)$ RedShift星系的最新光度检测已被证明与现有的星系组的现有模拟模型处于强烈的张力,并且在最急性的情况下,与$λcdm$本身的紧张关系。但是,这些结果都取决于通过光谱证实这些距离的确认。最近,Jades调查发现了最遥远的星系,并具有光谱镜确认的红移,发现了四个星系,红移在$ z = 10.38 $和$ z = 13.2 $之间。在本文中,我们比较了来自四个大宇宙学和两个缩放原始群体的仿真预测与JADES观测值,以确定这些光谱确认的星系检测是否与现有的星系组模型或$λCDM$ $更广泛地张紧。我们发现,现有的宇宙星系形成模型通常可以从星系恒星质量,恒星形成速率以及$ z> 10 $的星系密度的情况下重现Jades的观察结果。

Recent photometric detections of extreme $(z>10)$ redshift galaxies from the JWST have been shown to be in strong tension with existing simulation models for galaxy formation, and in the most acute case, in tension with $ΛCDM$ itself. These results, however, all rest on the confirmation of these distances by spectroscopy. Recently, the JADES survey has detected the most distant galaxies with spectroscopically confirmed redshifts, with four galaxies found with redshifts between $z=10.38$ and $z=13.2$. In this paper, we compare simulation predictions from four large cosmological volumes and two zoom-in protoclusters with the JADES observations to determine whether these spectroscopically confirmed galaxy detections are in tension with existing models for galaxy formation, or with $ΛCDM$ more broadly. We find that existing models for cosmological galaxy formation can generally reproduce the observations for JADES, in terms of galaxy stellar masses, star formation rates, and the number density of galaxies at $z>10$.

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