Protostellar disk radii Rdisk as a functionof the protostellar bolometric luminosity Lbol for all Class 0 (red circles) and Class I (black stars) protostars observed between 0.7 and 2.7 mm with a spatial resolution better than 50 au from the CALYPSO sample and theliterature. The Class 0 disks shown here are from the CALYPSO sample (filled circles) and those characterized in the literature (contour circles, see text for names and references). When only upper limits on disk sizes could be estimated, the upper-limit values are indicated with arrows pointing down. The dotted red box shows the location of the ten Class 0 disk radii from the 8mm continuum observations of the VANDAM sample (Segura-Cox et al. 2018). The individual Class I disks shown are those described in the text of Sect. 5.1.3. The dashed lines show the median disk radii: in red from the sample of 25 Class 0 disks with 50 au (including upper limit radii), and in black the median radius from the sample of 25 Class I disks with au.
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