Broadband SEDs of the studied SMGs. The downward pointing arrows denote upper limits to the corresponding flux densities. The red line represents a modified blackbody fit to the FIR-to-mm data points. The blue dashed line is the best fit model, obtained from the superposition of the best fit Draine & Li (2007) model (long-dashed green line) and the stellar black body function (orange dash-dotted line) assuming a temperature of 5000 K, scaled to the residual 24 μm “stellar” flux (i.e., observed 24 μm flux minus that obtained from the DL07 best-fit model).