Convective Core Overshoot & Mass Loss in Classical Cepheids: A Solution to the Mass Discrepancy?

Details Convective Core Overshoot & Mass Loss in Classical Cepheids: A Solution to the Mass Discrepancy? Convective Core Overshoot & Mass Loss in Classical Cepheids: A Solution to the Mass Discrepancy?

2010-11-19

arxiv.org/abs/1011.4391v2

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

8 pages, 3 figures. To appear in the proceedings of Cool Stars 16: 16th Cambridge Workshop on Cool Stars, Stellar Systems, and

Scientific paper

We explore the role of mass loss and convective core overshoot in the evolution of Classical Cepheids. Stellar evolution models are computed with a recipe for pulsation-driven mass loss and it is found that mass loss alone is unable to account for the long-standing Cepheid mass discrepancy. However, the combination of mass loss and moderate convective core overshooting does provide a solution, bringing the amount of convective core overshooting in Cepheids closer to that found for other stars.

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