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Mixing length model of convection in stellar cores

Published online by Cambridge University Press:  01 August 2006

Ian W Roxburgh  and
Friedrich Kupka
Ian W Roxburgh
Affiliation:
Queen Mary, University of London, UK email: [email protected]
Friedrich Kupka
Affiliation:
Max-Planck-Institute for Astrophysics, Garching, Germany email: [email protected]
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Abstract

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The standard mixing length model of convection is ill behaved at the centre of a star since the pressure scale height Hp=P/(ρg)→∞ as r→0, and the convective flux remains non zero at r=0. We propose a modifcation of this model of convection that has the correct behaviour in the central regions of a star and smoothly changes to the standard MLT away from the centre.

Keywords

Convectionstars: interiors
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S239: Convection in Astrophysics , August 2006 , pp. 98 - 99
Copyright
Copyright © International Astronomical Union 2007

References

Böhm-Vitense, E. 1958, ZfA 46, 108Google Scholar