Left panel: equivalent blackbody radius of the dust disks around the 66 stars in our combined sample showing a significant mid- to far-infrared excess, for which a dust temperature could be derived. Disks classified as warm (> 100 K) and as cold (<100 K) are colored red and blue respectively. Right panel: same as left, but for the corrected blackbody radius, using the 50% astrosilicate + 50% ice composition of Pawellek & Krivov (2015). A purple dashed line at 50 au shows a rough separation between warm and cold dust populations. The vertical green dotted lines link the warm and the cold dusts that were found in the same stellar system.