Band 6 (259 GHz) continuum decomposed into a free-free (α = −0.1) and a dust (α = 3.5) component based on pixel-by-pixel SED-fitting. The common beam size between all maps used for these SED fits is drawn in the bottom left as a filled ellipse. In the left figure, we indicate the Phoenix and the two nuclear apertures used to obtain the spectral energy distribution shown in Fig. 4.