Comparison between channel maps of AHCJ2239+3832 and its best-fit model. Top panels and blue contours represent the data, while the lower panels and red contours represent the best fit model. Contours are plotted starting from three times the noise per channel in the cube reported in Table 1, and are spaced by a factor of two in intensity. The black X indicates the center of the galaxy, as determined by CANNUBI (see Sect. 3.2).