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| Paper: |
Circumstellar Environments, Post-Red Supergiant Evolution, and Blue Loops |
| Volume: |
425, Hot and Cool: Bridging Gaps in Massive Star Evolution |
| Page: |
247 |
| Authors: |
Humphreys, R. M. |
| Abstract: |
The evolved yellow and red hypergiants near the empirical upper luminosity boundary all show evidence for instabilities and high mass loss, but a few are distinguished by extensive circumstellar ejecta and evidence for episodic mass-loss events and eruptions. What distinguishes these stars and what are the implications for their evolutionary state? I will also present some new results for lower-mass massive stars. |
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