a) VLT-VISIR 8.6 μm (PAH1 filter) image of GoHam in color, the scale is in Jy/arcsec². In contours: velocity-integrated ¹²CO(2−1) emission observed with the SMA from Bujarrabal et al. (2008, 2009). b) VLT-VISIR 8.6 μm (PAH1 filter, same as left panel) in color. Contours show the emission of ¹³CO (2−1) emanating from from GoHam b after subtracting the best-fit disk model (see Bujarrabal et al. 2009 for details). This region also corresponds to the local decrease of mid-IR emission seen in the VISIR image. The position of the cross cut used to extract the profiles shown in Fig. 3 is shown in green. c) VLT-VISIR 11.2 μm (PAH2 filter) image of GoHam in color, the scale is in Jy/arcsec². Contours as in b).