Time evolution of the different components of the magnetic field (top), the dimensionless shear rate, and the angular rotation frequency (bottom) for an accreted mass M_acc = 3.2 × 10⁻² M_⊙ corresponding to an asymptotic rotation period P_fin = 10 ms. The different stages of the dynamo process are highlighted by the schematics at the top and their associated timescales by the double arrows. Their ends are illustrated by the dotted vertical lines: winding (black), linear development of the Tayler instability (dark blue), and the whole dynamo loop (red). The horizontal dashed lines (blue, orange, and green) show respectively the saturation intensities , and (Eqs. 37–39) evaluated at the time of saturation. The dashed violet horizontal line represents the asymptotic angular rotation frequency Ω_fin.