Slices of continuum emission where the dotted lines show the measured profiles and the solid lines the fit to the data. a) Slice across the filaments parallel to the central region at a distance of 300 pc. b) and c) Slices along the filaments F2 and F1, respectively. d) Slice along the NW outflow cone. For slices b)–d) a constant level of background emission estimated from a) was subtracted.