Meridional distribution of the relevant dynamo properties. From left to right, the panels show the azimuthally averaged snapshots of the radial magnetic field component ⟨B_r⟩; flow helicity H = ⟨U ⋅ ∇ × U⟩; the r component of the γ effect, which is axisymmetric by definition (6); and meridional circulation ⟨U_r⟩. All runs are without imposed differential rotation at the bottom of the convective zone (Ro_sh = 0). Top row (panels a–d): g ∝ 1/r², Ra = 5 × 10⁶, and ξ = 0.35. Middle row (panels e–h): g ∝ r, and Ra = 8 × 10⁶, ξ = 0.2. Bottom row (panels i-l): g ∝ 1/r², Ra = 1 × 10⁶, and ξ = 0.2. The dotted line corresponds to the considered latitude in the bottom panels of Figs. 9 and C.3. The γ effect and ⟨U_r⟩ are normalized using viscous units of the code (see Fig. 3); helicity is thus normalized by ν²/d³. Magnetic field units are the same as in Fig. 5.