Upper limits on the dust mass (triangles) versus distance for all objects of Table 1. Colored pentagons stand for the two known protoplanetary disks around SR 12 c and PDS 70 c. The age of the systems is color-coded as illustrated by the color bar, except for our targets VHS J1256–1257 b (150–300 Myr) and G 196-3 B (50–100 Myr), which are shown with the black triangles. The disk dust masses were computed using the approach described in Sect. 4.