Latitudinal contours of the toroidal magnetic field at the bottom of the sub-adiabatic layer, B_os, obtained after applying the rotation profile from Markiel & Thomas (1999) to the one-dimensional interface dynamo model. Each panel corresponds to a different dynamo number, N_d = −500 at the top and N_d = −20000 at the bottom. The transition between the two behaviours happens at |N_d| ≈ 1000. Contours correspond to the same values of Β as in Fig. 3. The start time is selected in such a way that the initial numerical transients of the integration have disappeared and the behaviour of the magnetic field has already stabilised (this also applies to Figs. 9, 10, and 11).