Q_φ image (left panel) showing the polarized intensity of scattered light and the U_φ image (rightpanel). The original data (OBS059_0002-0049 and OBS173_0001-0028, see Table 2) were 4 × 4 binned and smoothed with a Gaussian kernel with σ_kernel = 1 pixel to reduce the photon noise level. The position of the star is marked by a white cross. The color bar shows the surface brightness in counts per binned pixel.