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<p>We review the observational evidence for the empirical upper luminosity limit in the Hertzsprung-Russell Diagram. We discuss its impact on our understanding of the evolution of the most massive stars, the importance of the high mass loss events that shape the upper limit, and the instabilities that may tigger the eruptions in stars close to their Eddington Limit.</p>

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Reflections on the upper Hertzsprung-Russell Diagram

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年9月23日

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  • Roberta M. Humphreys,
  • Kris Davidson

摘要

We review the observational evidence for the empirical upper luminosity limit in the Hertzsprung-Russell Diagram. We discuss its impact on our understanding of the evolution of the most massive stars, the importance of the high mass loss events that shape the upper limit, and the instabilities that may tigger the eruptions in stars close to their Eddington Limit.