Integral properties of the dynamo with increase of differential rotation. (a) Time-averaged dipolarity parameter as a function of the ratio between shear and convective Rossby numbers for Pm = 4 and three different gravity profiles: g(r) from CESAM in Eq. (3) in magenta, g ∝ 1/r² in red, and g ∝ r in blue. The lines represent the following: solid lines, ξ = 0.35; dashed, ξ = 0.2; and dotted, ξ = 0.1. More (less) transparent lines correspond to the runs with a lower (higher) Ra number, for a fixed gravity profile and radius ratio (see Table B.1). The shapes represent the following: filled circles, stable dipoles (Fig. 5a); empty circles, reversing dipoles; diamonds, dipolar-quadrupolar waves (Fig. 5b); crosses, mixed dipolar and multipolar solutions without coherent temporal dynamics (Fig. 5c); and squares, equatorially symmetric solutions (Fig. 5d). (b) Same as in panel (a) but for g ∝ 1/r² only and varying radius ratio. Light color, Pm = 4; dark color Pm = 6. Line styles and symbols as in panel (a). (c) Ratio of rms of axisymmetric toroidal and poloidal magnetic components B_t^axi and B_t^axi. Runs, lines, and symbols are the same as in panel (a). (d) Estimated critical collapse value of Ro_sh/Ro_conv^ℓ from all curves in panels (a) and (b), as a function of Pm and radius ratio ξ (stars) and the corresponding exponential fits (lines, Eq. 7).