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.

中文翻译：

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探测遥远静止星系中渐近-巨支-分支星的强光谱特征


使用 JWST，已经在遥远星系的近红外发射中检测到光谱特征。这些观测解决了关于热脉冲渐近巨分支星对星系发射贡献的长期争议，对星系年龄和恒星质量的计算以及恒星种群合成的模型产生了影响。