Results for the observed mean cold-dust SED. Left panel: Observed mean fluxes and best-fitting function. The dashed gray lines mark the six bins we used to develop the mean SED. Right panel: Corner plot showing the posterior probability distributions of T_dust, M_dust, and β. The solid green lines indicate the best-fitting value for each parameter, while the dashed lines mark the 16th and 84th percentiles for each parameter.