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Fig. 7.

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Mean surface azimuthal velocity as a function of the colatitude, for the models in Fig. 6b, i.e., with E = 3 × 10−5, Pr = 0.3, Nρ = 4, and Ra = 3 Rac. The magnetic Prandtl number Pm is varied and the solid black line represents the model with no dynamo (i.e., too low values of Pm).
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