Dots represent the observed Si i Stokes U, Q, and V profiles (same as Fig. 4). The overplotted synthetic profiles were computed using different magnetic field inclination angles for the second component, that varied between γ  ∈  [40°, 120°]. The test was performed by varying the magnetic field inclination of the second component and keeping the remaining atmospheric parameters (which came from the best fit of the SIR inversion) fixed. The dotted red line shows the best matching profile, whose corresponding atmospheric parameters are shown in the caption of Fig. 4.