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Fig. 2


LSD Stokes V (solid black line) and null diagnosis N (dashed blue line) profiles calculated for groups of lines from different chemical species (top to bottom) and at typical rotation phases (left to right). The number of the polarimetric sequence is indicated in the top panel. Vertical dashed lines show the integration range at  ± 65 km s-1 centred on the minimum of the Stokes I profiles.

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