Fig. 1

Meridional plane displays of time averaged ⟨ ur ⟩, ⟨ uθ ⟩ and stream function. The top row is for a HD simulation, while the bottom row shows the same quantities for a MHD counterpart. For the HD (MHD) case, the temporal average corresponds to 246 (406) yr. In panels A and D, red/yellow (blue/green) denotes flows towards the north (south). In panels B and E, red (blue) denotes rising (sinking) flows. In panels C and F, we present the stream lines of the MC. The red (blue) tones denotes circulation in the counterclockwise (clockwise) direction. The black dashed line indicates the depth of the base of the convection zone. Below it we have the stable layers. The vertical dotted line in C) indicates the position of the tangent cylinder for reference. At the top layer, thin ticks mark 15° intervals. Panel C can be directly compared with Fig. 1g of FM15.
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