Complementary data to Fig. 9. (a) Top: Radial component of the gamma effect γ_r as a function of Ro_sh (given in the legend), averaged over colatitude θ. Bottom: Radial component of meridional circulation near the equator (colatitude of θ = 80°, see the dotted lines in Fig. 8h,l). Solid lines indicate runs where the dipole is stable, and dashed lines to the runs where dipole collapsed. Runs with g ∝ r, Ra = 8 × 10⁶, ξ = 0.2. (b) The same but for g ∝ 1/r², Ra = 1 × 10⁶, ξ = 0.2. Subscripts ϕ and θ denote azimuthal and latitudinal average, respectively. Same units as in Fig. 3(c-e).