Integrated intensity of the outflow seen in HCN (3 − 2) between −1100 km s⁻¹ and −400 km s⁻¹ (yellow region marked in Fig. 5). The cross in the centre marks the location of the nuclear source. The contours start with a 5σ flux and go from 0.8 mJy kms⁻¹ beam⁻¹ to 2.5 Jy kms⁻¹ beam⁻¹ with steps of 0.2 mJy kms⁻¹ beam⁻¹. The magenta dashed ellipses show the regions fitted to the two main components. The synthesised beam is plotted in the bottom-left corner.