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Updated: Jul 23, 2025

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A Synchronized Two-Dimensional - Model of the Solar Dynamo
Abstract:
We consider a conventional --dynamo model with meridional circulation that exhibits typical features of the solar dynamo, including a Hale-cycle period of around 20 years and a reasonable shape of the butterfly diagram. With regard to recent ideas of a tidal synchronization of the solar cycle, we complement this model by an additional time-periodic -term that is localized in the tachocline region. It is shown that amplitudes of some decimeters per second are sufficient for this -term to become capable of entraining the underlying dynamo. We argue that such amplitudes of may indeed be realistic, since velocities in the range of m s-1 are reachable, e.g., for tidally excited magneto-Rossby waves.
Supplementary Information:
The online version contains supplementary material available at 10.1007/s11207-023-02173-y.
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