Intensity integrated maps of DCO⁺ 3–2 (top panel) and N₂D⁺ 3–2 (bottom panel) observed with the SMA, overlaid with DCO⁺ 5–4 (contours) observed with ALMA (combined 12 m array and ACA). Contours are the same as in Fig. 2 with σ = 0.06 Jy beam⁻¹. The positions of IRAS 16293−2422 A and B are indicated with a star and circle, respectively. The cyan ellipse shows the disk-like structure. The filled green ellipses show the beam for the ALMA observations, while the unfilled ellipse shows the beam for the SMA observations. Both DCO⁺ transitions match spatially, and N₂D⁺ is located beyond the extent of the DCO⁺ emission. We note that this figure has a different center from that of Fig. 2.