Dust temperature profile for the set of MCFOST radiative transfer disk models with different disk dust masses. The dashed lines show the radial profile of the disk midplane temperature, while the solid lines show the radial profile of the mass-averaged dust temperature. As the mass increases, the disk becomes more optically thick to radiation and the temperature decreases. At the outer edges of the disk, all dust mass models converge to a mass-averaged dust disk temperature of 22 K (as indicated by the dotted line).