A Massive Yellow Supergiant in the Far Outer Disk of M31: Evidence for in Situ Massive Star Formation beyond the Optical Radius

While massive stars are known to shape galactic ecosystems, their formation has long been assumed to require the high-density environments of inner galactic disks. This paradigm is challenged by mounting evidence of young massive stars in extended galaxy outskirts, yet direct confirmation of in situ...

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Bibliographic Details
Main Authors: Pinjian Chen, Bingqiu Chen, Haibo Yuan, Xuan Fang, Xiaodian Chen, Chao-Wei Tsai, Kai Zhang, Xiaowei Liu
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Series:The Astronomical Journal
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Online Access:https://doi.org/10.3847/1538-3881/ade68a
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