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Generators of Solar Differential Rotation and Implications of Helioseismology

Published online by Cambridge University Press:  08 February 2017

G. Rüdiger  and
I. Tuominen
G. Rüdiger
Affiliation:
1Sternwarte Babelsberg, 1591 Potsdam, German Democratic Republic
I. Tuominen
Affiliation:
2Observatory and Astrophysics Laboratory, University of Helsinki Tähtitorninmäki, SF-00130 Helsinki, Finland

Abstract

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We interpret the helioseismological results for the solar rotation law as implying a uniform Ω0 in depth, if the angular velocity Ω(θ) is expanded in series of orthogonal polynomials. One of the possibilities to ensure uniformity of Ω0 is to exclude any anisotropy from the generating turbulence field, so that only the rotationally originated part of the heat conductivity tensor survive as a generator of meridional flow and consequently equatorial acceleration is produced. In addition to this simplest possible turbulence model, we discuss some possible forms of the nondiffusive parts of the Reynolds stresses which may be compatible with the uniformity of Ω0.

Type
V. Large-scale Structure and Dynamics
Information
Symposium - International Astronomical Union , Volume 138: Solar Photosphere: Structure, Convection and Magnetic Fields , 1990 , pp. 315 - 320
Copyright
Copyright © Kluwer 1990 

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