Figure 4
Non-dimensional radial velocity at the top of the shell (\(r/r_o=0.95\)) for dynamo models with (a) \(q^*=0.0\), (b) \(q^*=1.0\) and (c) \(q^*=2.0\). Dashed contours denotes the regions where \(\delta q < \frac{1}{2} \delta q_{min}\) (see Fig. SM1). Note the different scales.
