Fig. 1.

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Mean polarized intensity images Qφ(x, y) for N_R, VBB, J, H, and Ks band. All images are normalized to the stellar intensity I⋆ and divided by their pixel areas (3.6 × 3.6 mas2 for ZIMPOL and 12.25 × 12.25 mas2 for IRDIS) to provide the surface brightness contrast in mas−2, as indicated by the color bar. The first and the second rows present coronagraphic and non-coronagraphic observations respectively. The shared color bar is indicated on the right. The epochs are indicated on the top left in each panel. The grey dashed line in the J-band panel indicates the integrated region for disk signals. The black dotted line in the H panel indicates the deprojected region used to calculate the azimuthal profile. Up is to the north and left is to the east.
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