Left: map of the chromospheric magnetic field strength. Right: map of the mean value of the retrieved vLOS for the He components weighted with the respective filling factor α. Red and black contours outline the position of the filament as sampled by the spectropolarimeter’s scan. They are defined as I∗ = ∫(Ic − I)dλ = 2 × 104 counts (see left panel of Fig. 3).
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