Dust temperature (blue) and dust-to-gas mass ratio (black) as a function of disk radius resulting from the thin disk model fit (described in Sect. 3.5) for each object. The dotted black vertical line indicates the fitted inflection point R_turn of the logistic function of the dust-to-gas mass ratio. In red is the normalized cumulative flux distribution to illustrate where in the disk the majority of the thermal dust emission originates for different wavelengths and how this relates to the local dust abundance and temperature. The red dashed line is for the flux at ∼4 µm, the red solid line for the flux at ∼1.3 mm (ALMA Band 6).