Decompositions of the spectra of our sources. The solid green line is the fitted model. The blue lines above the continuum are the PAH features. The violet lines are the spectral lines. The thin grey lines represent the thermal dust continuum components. The thick red line shows the total continuum (stars+dust). The dotted black line shows the extinction (e^−τ_λ,  = 1 if no extinction). The source ID is reported as the title of each panel.