Spectral energy distributions (SEDs) of the discussed clumps. The fluxes are extracted for apertures of 36.6′′ and 19.2′′. For clumps 8a and 8b only the smaller apertures of 19.3′′ were used. Error bars represent 20% uncertainties. Each panel lists the corresponding temperatures T and bolometric luminosities L for both fits top and bottom, respectively. Clumps 1, 3 and 8a are starless clump candidates.