Band 6 HCO⁺(3-2) (ν_rest = 267.6 GHz) and HCN(3-2) (ν_rest = 265.9 GHz) short (top, covering the CND) and long (bottom, showing the resolved torus) baseline moment zero maps. Contour levels are drawn at [ − 16, −8, −4, 2, 4, 8, 16]  ×  rms, where the background rms equals 36, 23, 57 and 28 mJy/beam km/s in the HCO⁺(3-2) B6SB and B6LB and HCN(3-2) B6SB and B6LB maps, respectively. White contours represent negative flux density values and indicate the position of an absorption hole that coincides with the continuum peak. The L-shape that contains the NW and SW hooks as discussed in the text is drawn as dashed black lines in the top panels. Cyan contours in the top panels indicate the position of the blueshifted emission feature discussed in Sect. 4.5 and represent the −30 km s⁻¹ level in the right panels of Fig. 8. The synthesised beam sizes are drawn in the bottom left as filled ellipses, and the cyan cross indicates the AGN position.