Channel maps of the quasar host–MQN01-QC system extracted from the continuum-subtracted ALMA band 3 datacube. Each panel was obtained by averaging channels in the datacube within 100 km s⁻¹-wide windows, as reported at the top of each panel. The original datacube used for the kinematical modeling has a channel width of 25 km s⁻¹. The maps are color-coded based on the signal-to-noise ratio. The gray contours show −2 × S/N (dotted), and 2n × S/N (solid) isophotes, where n ≥ 1 is an integer number. The green contours show the best-fit rotating disk model as obtained with ^3DBAROLO.