A dynamo wave near the solar equator |
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| Authors: | V M Galitski D D Sokoloff K M Kuzanyan |
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| Institution: | (1) Kavli Institute for Theoretical Physics, University of California, Santa Barbara, CA 93106-4030, USA;(2) Department of Physics, Moscow State University, Moscow, 119992, Russia;(3) Institute of Terrestrial Magnetism, Ionosphere, and Radiowave Propagation, Russian Academy of Sciences, Troitsk, Moscow oblast, 142190, Russia |
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| Abstract: | The structure of a dynamo wave near the solar equator is considered in the Parker approximation. The results show that the principal dynamo wave, which travels in the northern hemisphere from middle latitudes toward the equator, penetrates slightly into the southern hemisphere. The wave that propagates in the southern hemisphere exhibits similar behavior. The angular distance the wave is able to penetrate into the neighboring hemisphere can reach about ten degrees of latitude. Possible observational manifestations of this effect are discussed. The growth rate of the dipolar magnetic-field configuration exceeds that of the quadrupolar configuration, and the difference between these growth rates is computed. A possible relation of this quantity to the time characteristics of the Maunder minimum is discussed. |
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