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Fig. 5

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Dependency of the accretion-driven small-scale dynamo mechanism on the percentage of kinetic energy that goes into turbulence β. The upper panel shows the different length scales, the middle panel the time until saturation, i.e. tν and tL, and the lower panel the saturation magnetic field strength Bsat. We plot all quantities on the viscous scale ν and on the turbulent forcing scale L as indicated in the figure. The solid blue lines show the results for a spherical galaxy, the dashed red lines the ones for a disk.

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