Moment 0 map of the HOCH₂CN 36_4,32 –35_4,31, E_up = 324 K line towards IRAS 16293B. The line is integrated over eight velocity bins, centred on the peak frequency of the line. The positions of the half-beam and full-beam offset positions around IRAS 16293B are indicated and the beam size (0.′′ 5 × 0.′′5) is visualised in the bottom left corner. Dust continuum contours are given by the black dotted line at the levels of 0.02, 0.05, 0.1, 0.2, and 0.5 Jy Beam⁻¹.