ALMA Band 7 data (PILS; color scale) overlaid with Band 3 combined data (contours) for HC₃N, H¹³CO⁺, HNC, and HCN. The 3σ level is indicated on the colorbar with a horizontal white or gray line. Panels are the size of the PILS Band 7 field of view. Contours are in steps of 3, 5, 7, 10, 15, 20, 30, 40, 50, and 80σ, where σ = 70 mJy beam⁻¹ km s⁻¹ for HCN; 3, 5, 10, 15, 20, 25, 30, 40, and 50σ, where σ = 7 mJy beam⁻¹ km s⁻¹ for HNC; 3, 5, 6, 7, 8, 15, 30, and 50σ, where σ = 10 mJy beam⁻¹ km s⁻¹ for HC₃N; and 2, 3, and4σ, where σ = 50 mJy beam⁻¹ km s⁻¹ for H¹³CO⁺. The positions of IRAS 16293 A and B are marked with a star and circle, respectively. The arrows indicate the E–W (green) and NW-SE (red) outflow directions from source A. The white circle and gray ellipse show the Band 7 (PILS) and Band 3 beams, respectively.