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Red supergiants and stellar evolution

Published online by Cambridge University Press:  23 May 2013

S. Ekström ,
C. Georgy ,
G. Meynet ,
J. Groh  and
A. Granada
S. Ekström
Affiliation:
Geneva Observatory, University of Geneva, Maillettes 51, Sauverny, 1290 Versoix, Switzerland
C. Georgy
Affiliation:
CRAL, ENS-Lyon, 46 allée d’Italie, 69369 Lyon Cedex 07, France
G. Meynet
Affiliation:
Geneva Observatory, University of Geneva, Maillettes 51, Sauverny, 1290 Versoix, Switzerland
J. Groh
Affiliation:
Geneva Observatory, University of Geneva, Maillettes 51, Sauverny, 1290 Versoix, Switzerland
A. Granada
Affiliation:
Geneva Observatory, University of Geneva, Maillettes 51, Sauverny, 1290 Versoix, Switzerland
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Abstract

We review the significant role played by red supergiants (RSGs) in stellar populations, and some challenges and questions they raise for theoretical stellar evolution. We present how metallicity and rotation modify the way stars go to the red part of the Hertzsprung-Russell diagram or come back from it, and how RSGs might keep a trace of their main-sequence evolution. We compare theoretical population ratios with observed ones.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 60: Betelgeuse Workshop 2012 The Physics of Red Supergiants: Recent Advances and Open Questions , 2013 , pp. 31 - 41
Copyright
© EAS, EDP Sciences 2013

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