在遥远的静态星系中探测来自渐近-后分支恒星的强光谱特征

IF 12.9 1区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Nature Astronomy Pub Date : 2024-10-22 DOI:10.1038/s41550-024-02392-8

引用次数: 0

摘要

利用 JWST，在遥远星系的近红外辐射中探测到了光谱特征。这些观测结果解决了一个长期存在的争议，即热脉动渐近边支恒星对星系发射的贡献，这对星系年龄和恒星质量的计算以及恒星群合成模型都有影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Detection of strong spectral features from asymptotic-giant-branch stars in distant quiescent galaxies

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Detection of strong spectral features from asymptotic-giant-branch stars in distant quiescent galaxies

Using JWST, spectral features have been detected in the near-infrared emission of distant galaxies. The observations address a long-standing controversy about the contribution of thermally pulsing asymptotic-giant-branch stars to galaxy emission, with implications for the calculation of galaxy ages and stellar masses, and for models of stellar population synthesis.

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来源期刊

Nature Astronomy Physics and Astronomy-Astronomy and Astrophysics

CiteScore

19.50

自引率

2.80%

发文量

252

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