The interplay of mass loss and core overshooting in massive stars |
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Authors: | Martin Beech |
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Affiliation: | (1) Department of Astronomy, University of Western Ontario, London, Ontario, Canada;(2) Present address: Southbarn, Collapit, Kingsbridge, Devon, U.K. |
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Abstract: | In this study analytic models are used in an attempt to constrain the overshooting parameter in massive stars. It is found that core overshooting up to of order 20% is required to explain the non-existence of red supergiants withMbol<–10. Furthermore, a critical mass of 60M marks the upper mass limit for stars that can undergo a red supergiant phase. The analysis employed clearly demonstrates an important interplay between mass loss and core overhooting-highlighting the difficulty of establishing the uniqueness of a given set of results. |
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