Solar-like differential rotation and equatorward migration in a   convective dynamo with a coronal envelope
  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. 
J\"orn Warnecke (1,2), Petri J. K\"apyl\"a (1,3) Maarit. J. Mantere   (3), Axel Brandenburg (1,2) ((1) Nordita, (2) Stockhol...
astro-ph.SR