Continuum map at 1.3 mm convolved to 15′′ with black contours at 4%, 6%, 8%, 15%, 30%, 60%, and 90% of the peak located at the IRAS 16293-2422 position (6.7 Jy in a 1500 beam). Dashed blue lines show the distribution of the DCO⁺ 3–2 integrated intensity between 2.8 and 5 km s^-1, with contour levels contour levels are 50%, 60%, 70%, 80% and 90% of the peak (integrated over velocities between 2.8 and 5 km s^-1). The cross represent the position towards which H₂D⁺ and D₂H⁺ have been observed.