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Cross helicity in stellar magnetoconvection

Published online by Cambridge University Press:  08 June 2011

Manfred Küker  and
Günther Rüdiger
Manfred Küker
Affiliation:
Astrophysikalisches Institut Potsdam, An der Sternwarte 16, 14482, Potsdam, Germany
Günther Rüdiger
Affiliation:
Astrophysikalisches Institut Potsdam, An der Sternwarte 16, 14482, Potsdam, Germany
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Abstract

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Magnetic diffusion is a key ingredient in mean-field dynamo models but neither observations nor theory are able to produce reliable values. Numerical simulations provide an alternative way to determine the turbulent electromotive force. Cross helicity allows us to determine the turbulent magnetic diffusion coefficient in simulations of stellar magnetoconvection.

Keywords

convectionSun: activitystars: activity
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S274: Advances in Plasma Astrophysics , September 2010 , pp. 143 - 145
Copyright
Copyright © International Astronomical Union 2011

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