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Evidence for the Phi-Dependent Rotation-Oscillation of the Sun (and for the Driving Mechanism of the Asymmetric Dynamo)*

Published online by Cambridge University Press:  12 April 2016

I.K. Csada
I.K. Csada*
Affiliation:
Konkoly Observatory, Budapest, Hungary

Abstract

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Longitude-dependent oscillations of the solar rotation are derived from the 27-day averages of the photospheric velocity data. Two pairs of prominent periods are obtained. Their harmonic means correspond to a semiannual variation and to the first harmonic of the latter. To explain the origin of the oscillation the corona and the interplanetary material are supposed to rotate parallel to the planetary plane with an inclination to the solar equator. The non-uniform shearing around the equator is assumed to result in oscillation with a period of half of a year.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 66: Problems of Solar and Stellar Oscillations , 1983 , pp. 439 - 442
Copyright
Copyright © Reidel 1983

Footnotes

*

Proceedings of the 66th IAU Colloquium: Problems in Solar and Stellar Oscillations, held at the Crimean Astrophysical Observatory, U.S.S.R., 1-5 September, 1981.

References

Csada, I. K.: 1981, Solar Phys. 74, 103.CrossRefGoogle Scholar
Scherrer, P. H., Wilcox, L. M., and Svalgaard, L.: 1981, Astrophys. J. 241, 811.CrossRefGoogle Scholar