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Λ-effect, Meridional Flow and the Differential Solar Rotation

Published online by Cambridge University Press:  12 April 2016

G. Rüdiger  and
I. Tuominen
G. Rüdiger
Affiliation:
Universitäts-Sternwarte Göttingen, Göttingen, F.R.G.
I. Tuominen
Affiliation:
Observatory and Astrophysics Laboratory, University of Helsinki, Helsinki, Finland

Abstract

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Rotation laws for the solar convection zone are produced by the Λ-effect in rotating anisotropic turbulence fields. In this paper we use the structure of the turbulence parameters introduced by Rüdiger and Kichatinov (1990), based on a simplified turbulence model. When we neglect the meridional circulation, for small inverse Rossby numbers the angular velocity isolines are spherical, while for increasing inverse Rossby number they approach more and more the helioseismologically derived shape. This simple picture becomes more complicated if the meridional circulation is allowed to act as an angular momentum transporter.

Type
Part III Solar magnetism and large-scale flows
Information
International Astronomical Union Colloquium , Volume 130: The Sun and Cool Stars: activity, magnetism, dynamos , 1991 , pp. 172 - 177
Copyright
Copyright © Springer-Verlag 1991

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