Y2 Isochrones with an Improved Core Overshoot

Abstract

Convective core overshoot affects stellar evolution rates and the dating of stellar populations. In this paper, we provide a patch to the $Y^2$ isochrones with an improved treatment of convective core overshoot. The new tracks cover the transition mass range from no convective core to a fully developed convective core. We compare the improved isochrones to CMDs of a few well observed open star clusters in the Galaxy and the Large Magellanic Cloud. Finally we discuss future prospects for improving the treatment of core overshoot with the help of asteroseismology.

Accepted for publication in ApJS (December issue)

References in corpus (3)

• Towards Better Age Estimates for Stellar Populations: The Y^2 Isochrones for Solar Mixture
• The YY Isochrones for alpha-element Enhanced Mixtures
• The Y^2 Stellar Evolutionary Tracks

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