ZIMPOL R-band (top two rows) and ZIMPOL I-band (bottom two rows) polarized intensity images. The field of view is 1.′′4 × 1.′′4 and the central star is positioned in the center of each image. The left column shows the Q_φ and U_φ polarized intensity images (see Sect. 2.3). The center column shows the Q_φ and U_φ images scaled with the deprojected distance squared from the star to each pixel for an inclination of 11° and a position angle of the major axis of 62°. All images are shown on a linear color stretch, with companion Q_φ and U_φ images having the same minimum and maximum value. Orange corresponds to positive values, blue to negative values, and black is the zero point. The right column shows the signal-to-noise (S/N) maps of the Q_φ and U_φ images which are obtained from the U_φ images. The contour levels correspond to the standard deviation values that are shown on the right of the S/N map colorbar.