Outer disk properties of the sample compared with the contrast. a) Far-IR excess normalized to the stellar flux. b) PAH luminosity normalized to the stellar flux. The symbol size reflects the stellar temperature with dynamic range between 10 470 K and 6450 K. c) Flux at 1.3 mm normalized at a distance of 140 pc. The error on the y-axis reflects the uncertainty on the distance (typically smaller for Gaia measurements). The symbol size reflects the stellar mass with dynamic range between 1.6 M_⊙ and 3.2 M_⊙. d) Dust opacity index β_mm. The symbol size reflects the cavity size from the PDI images. Typical errors for this source type are indicated by the vertical bar to the right.