1.37 mm continuum emission. The selected positions analyzed in this paper (summarized in Table A.1) are marked and labeled in red (core positions) and blue (all remaining positions). The dashed black contours show the − 5σ_cont emission andthe solid black contours start at 5σ_cont with contoursteps increasing by a factor of 2 (e.g., −5, 5, 10, 20, 40, 80,...σ_cont; see Table 2 for values of σ_cont for eachregion). In each panel, the beam size is shown in the bottom left corner and the pink bar in the top left corner indicates a linear spatial scale of 5000 au. The field of view in each region is adjusted to only show the area with significant emission (≥ 5σ_cont), and for regions with wide-spread emission, the primary beam is indicated by a black circle.