Total intensity contour plots, as shown in Fig. 6. Contours start at four times the noise level, increasing by a factor of two. The core component (component 0), and the modelfit components 1−4 are plotted on top of the contours, with their size corresponding to the full width at half maximum of the modelfit component. The reduced-χ² value for the modelfit is shown in each panel. For unresolved components, the plotted component size corresponds to the resolution limit.