DGS SEDs: the observed SEDs include the Herschel data (purple crosses) as well as any available ancillary data (in orange). The different symbols refer to the different instruments: Xs for 2MASS bands, stars for Spitzer IRAC and MIPS, diamonds for WISE, and triangles for IRAS. The IRS spectrum is shown in orange. The total modelled SED in black is the sum of the stellar (green) and dust (red) contributions, and eventually of the modified black-body contribution (yellow). The modelled points in the different bands are the filled blue circles.