Comparison of the LSD Stokes IQV profiles obtained from synthetic stellar spectra (symbols) with the theoretical line profiles computed for the average line parameters (lines). Different colors illustrate the results for three values of the magnetic field inclination with respect to the line of sight (0°, 45° and 90°). The four columns correspond to different magnetic field strength values (0.1, 0.2, 1 and 5 kG). The solid lines show theoretical profiles for the resolution R = 80000. The dotted lines in the Stokes I and V panels illustrate calculations for R = 120000, which was the instrumental broadening applied to the original simulated stellar spectra. The dash-dotted lines in the Stokes V and Q panels represent calculations for the equivalent Zeeman splitting pattern with widely separated σ components.
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