Fig. A.1
Analysis of the LSD null profiles of HD 24712. Thin black lines show mean profiles derived from the null Stokes Q (left panel), U (middle panel), and V (right panel) spectra. The thick red lines show an attempt to reproduce these spurious polarization signatures with scaled LSD Stokes V profiles (QUpanels) and a linear combination of the LSD Stokes Q and U profiles (Vpanel).
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