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Testing models of rotating stars

Published online by Cambridge University Press:  12 July 2011

Adrian T. Potter  and
Christopher A. Tout
Adrian T. Potter
Affiliation:
Institute of Astronomy, The Observatories, Madingley Road, Cambridge CB3 0HA, England email: apotter@ast.cam.ac.uk
Christopher A. Tout
Affiliation:
Institute of Astronomy, The Observatories, Madingley Road, Cambridge CB3 0HA, England email: apotter@ast.cam.ac.uk
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Abstract

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The effects of rapid rotation on stellar evolution can be profound but we are only now starting to gather the data necessary to adequately determine the validity of the many proposed models of rotating stars. Some aspects of stellar rotation, particularly the treatment of angular momentum transport within convective zones, still remain very poorly explored. Distinguishing between different models is made difficult by the typically large number of free parameters in models compared with the amount of available data. This also makes it difficult to determine whether increasing the complexity of a model actually results in a better reflection of reality. We present a new code to straightforwardly compare different rotating stellar models using otherwise identical input physics. We use it to compare several models with different treatments for the transport of angular momentum within convective zones.

Keywords

stars: evolutionstars: generalstars: rotation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S272: Active OB stars: structure, evolution, mass loss, and critical limits , July 2010 , pp. 73 - 78
Copyright
Copyright © International Astronomical Union 2011

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