SED fit results. For each source, the SED model is shown on top as the solid curve, with the diamonds indicating photometry points from the optical bands, 2MASS, and Spitzer, and with the segments indicating the IRS data. The [24] data point for source #8 bears significant uncertainties (see Table 3). The downward arrows for source #12 show the upper limits on the Herschel/PACS fluxes. Source #12 could not be fitted by our models (Sect. 6.1).