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Fig. 5

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Mean longitudinal magnetic field and the LSD Stokes V profile amplitude as a function of the magnetic spot radius and projected rotational velocity. These calculations were carried out for Teff = 20 000 K and magnetic filling factor fsp = 0.5. The top panels show maximum |  ⟨ Bz ⟩  | for a sample of 20 rotational phases (top left) and |  ⟨ Bz ⟩  | averaged over this set of rotational phases (top right). The bottom panels illustrate the corresponding maximum (bottom left) and mean (bottom right) circular polarization amplitude. Each point in this plot was computed by averaging over 100 different random realizations of the magnetic spot distributions.

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