Imagery of sample. The polarization map of all sources is shown with the same angular and flux scales, as indicated in the top right panel. The Q_ϕ parameter is shown for all sources except GG Tau, XZ Tau, T Tau, and UY Aur, for which the PI parameter is shown. All primary stars masked by the coronagraph are indicated by a cyan circle, while all secondary stars are indicated by an orange diamond. Each panel is cropped to show all the significant flux detected. The only exception is T Tau, where flux is detected out to the detector edge and for which only the central region is shown. Stars are coarsely sorted by polarized light brightness.