Spectral energy distribution of sub-sample observed by JCMT/SCUBA-2. Circles and arrows denote detections and 3σ upper limits, respectively. The solid lines are the grey-body models using the diffuse ISM temperature derived by Rowlands et al. (2012) and the emissivity index β = 2. In three cases, the 850 μm data are deep enough to rule out contribution of very cold dust. Dotted lines denote the models of very cold dust with the temperature of 10 K, whereas the dashed lines denote the sum of both solid and dotted curves. The very cold dust model was scaled so that the total emission matches the SCUBA-2 upper limits, or Herschel data, if they are more constraining. The panels are ordered from left to right according to their increasing ages and these galaxies are marked in Fig. 5.