Hostname: page-component-77c89778f8-m42fx Total loading time: 0 Render date: 2024-07-23T22:20:52.245Z Has data issue: false hasContentIssue false
  • English
  • Français

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

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

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

References

Chan, K.L., Sofia, S., Mayr, H.G.: 1987, in The internal solar angular velocity, eds. Durney, B.R., Sofia, S., Reidel, p. 347 Google Scholar
Gierasch, P.J.: 1974, Astrophys. J. 190, 199 Google Scholar
Orszag, S.A.: 1970, J. Fluid Mech. 41, 363 CrossRefGoogle Scholar
Rüdiger, G.: 1989, Differential rotation and stellar convection, Sun and solar-type stars, Gordon and Breach Google Scholar
Rüdiger, G., Kichatinov, L.L.: 1990, Astron. Astrophys. 236, 503 Google Scholar
Rüdiger, G., Tuominen, I.: 1990, in Solar Photosphere: structure, convection and magnetic fields, ed. Stenflo, J.O., Kluwer, p. 315 Google Scholar
Schmidt, W.: 1982, Geophys. Astrophys. Fluid Dyn. 21, 27 Google Scholar
Tuominen, I., Rüdiger, G.: 1989, Astron. Astrophys. 217, 217 Google Scholar
Vainshtein, S.I., Kichatinov, L.L.: 1983, Geophys. Astrophys. Fluid Dyn. 24, 273 CrossRefGoogle Scholar