Upper panel: LSD Stokes V profiles (solid lines) and their fit (dashed lines) after correction of the mean radial velocity of the star. For display purposes the profiles are shifted vertically and the dotted horizontal lines indicate the zero level. Lower panels: radial, azimuthal and meridional maps for the reconstructed magnetic field for V390 Aur. The vertical ticks in the upper part of the radial map show the phases of observations.
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