Simulated radial profiles for Q_ϕ (red) and Stokes I (blue) and the degree of polarization Q_ϕ∕I (green) convolved with the IRDIS H-band PSF. The black curves show the initial model profiles of the disk before the convolution. The convolved profiles roughly correspond to the disk measurements at position angle 200° (see Fig. 8, bottom). The radially integrated mean disk intensities and the relative lost intensity (rel. error) were calculated for both profiles between the cross-hatched areas.