FWHM as a function of the center of the radial distribution r₀ (left panel), and FWHM normalized by the radius of the disk as a function of r₀ (right panel). Objects for which the FWHM was estimated readily from a radial Gaussian or power-law distribution are shown as circles, while objects where only the inner and outer radius were given are marked by diamonds. The spectral types of the sample stars are indicated by the color bar. The radius and width of the disk around GSC 07396-00759, estimated by Sissa et al. (2018) and in this work, are marked by the cross and the asterisk, respectively. To guide the eye, we also show the limits for FWHM = r₀ and FWHM = 2r₀ as a gray line in the left panel.