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arXiv · 1211.0452

Solar-like differential rotation and equatorward migration in a convective dynamo with a coronal envelope

Jörn Warnecke·Petri J. Käpylä·Maarit. J. Mantere·Axel Brandenburg
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Abstract

We present results of convective turbulent dynamo simulations including a coronal layer in a spherical wedge. We find an equatorward migration of the radial and azimuthal fields similar to the behavior of sunspots during the solar cycle. The migration of the field coexist with a spoke-like differential rotation and anti-solar (clockwise) meridional circulation. Even though the migration extends over the whole convection zone, the mechanism causing this is not yet fully understood.

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Jörn Warnecke, Petri J. Käpylä, Maarit. J. Mantere, Axel Brandenburg. 2012-11-02. Solar-like differential rotation and equatorward migration in a convective dynamo with a coronal envelope. https://doi.org/10.1017/s1743921313002676

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