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The Diffusion-Circulation Coupling in Stellar Radiative Zones: 2D Simulation

Published online by Cambridge University Press:  26 May 2016

Sylvie Théado  and
Sylvie Vauclair
Sylvie Théado
Affiliation:
Observatoire Midi-Pyrénées, Laboratoire d'Astrophysique, 14 Avenue Edouard Belin, 31400 Toulouse, France
Sylvie Vauclair
Affiliation:
Observatoire Midi-Pyrénées, Laboratoire d'Astrophysique, 14 Avenue Edouard Belin, 31400 Toulouse, France

Abstract

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We have done a 2D simulation of meridional circulation in the presence of helium diffusion below stellar convective zones. For slowly rotating stars the microscopic diffusion of helium leads to a μ-gradient which has an important effect on the rotation induced mixing. We present here the results of this 2D simulation for solar type stars.

Type
Session 3 Rotation, Solar and Stellar Physics
Information
Symposium - International Astronomical Union , Volume 215: Stellar Rotation , 2004 , pp. 354 - 355
Copyright
Copyright © Astronomical Society of the Pacific 2004 

References

Théado, S., Vauclair, S., 2001, A&A 375, 70–86 Google Scholar
Théado, S., Vauclair, S., 2003a, ApJ in press, astro-ph/0301246 Google Scholar
Théado, S., Vauclair, S., 2003b, ApJ in press, astro-ph/0301203 Google Scholar
Vauclair, S., Théado, S., 2003, ApJ in press, astro-ph/0301202 Google Scholar