Young Clusters in the Magellanic Clouds II

Abstract

We present the results of a quantitative study of the degree of extension to the boundary of the classical convective core within intermediate mass stars. The basis of our empirical study is the stellar population of four young populous clusters in the Magellanic Clouds which has been detailed in Keller, Bessell & Da Costa (2000). The sample affords a meaningful comparison with theoretical scenarios with varying degrees of convective core overshoot and binary star fraction. Two critical properties of the population, the main-sequence luminosity function and the number of evolved stars, form the basis of our comparison between the observed data set and that simulated from the stellar evolutionary models. On the basis of this comparison we conclude that the case of no convective core overshoot is excluded at a 2 sigma level.

27 pages, 12 figures, AJ accepted

References in corpus (4)

• Presupernova Evolution of Rotating Massive Stars I: Numerical Method and Evolution of the Internal Stellar Structure
• The Large Magellanic Cloud globular cluster NGC 1866: new data, new models, new analysis
• WFPC2 Imaging of Young Clusters in the Magellanic Clouds
• Infrared Photometry of Red Supergiants in Young Clusters in the Magellanic Clouds

Cited by in corpus (13)

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• Testing intermediate-age stellar evolution models with VLT photometry of LMC clusters. III. Padova results
• Cepheid Mass-loss and the Pulsation -- Evolutionary Mass Discrepancy
• Testing intermediate-age stellar evolution models with VLT photometry of LMC clusters. I. The data
• The Extended Main-Sequence Turn-off Clusters of the Large Magellanic Cloud - Missing links in Globular Cluster Evolution
• Large Magellanic Cloud Bump Cepheids: Probing the Stellar Mass-Luminosity Relation
• Rotation of Early B-type Stars in the Large Magellanic Cloud - The role of evolution and metallicity
• NGC 1866: a workbench for stellar evolution
• Testing intermediate-age stellar evolution models with VLT photometry of LMC clusters. II. Analysis with the Yale models
• Stellar over-densities in the halo: the extent of the Virgo over-density
• Convective Core Mixing: a Metallicity Dependence?
• Stellar Over-densities in the Outer Halo of the Milky Way