Mean 60 μm monochromatic luminosities (L₆₀) and luminosity distributions of AGNs and inactive control galaxies in GOODS-S, as a function of visual Interaction Metric (IM). Panels left to right span three distinct bins in redshift. In the top row, the mean L₆₀ from combinations of detections and stacks are compared in bins of IM. In the lower two rows, each panel is split into two subpanels. L₆₀ distributions and PACS detection fractions for AGNs and inactive galaxies are plotted in the left subpanels for two coarse bins in IM. PACS detection fractions are shown in the right subpanels. Details of the plot are identical to those of Fig. 13, except for a difference in the structural measure. See Sect. 4.2 for a discussion.