Position–velocity diagram in CO(3–2) for NGC 1672, taken along the major axis of the torus, PA = 70°. The two panels are the same, with at right the superposition in blue of the circular velocity of the galaxy model with M_BH = 4.5 × 10⁷ M_⊙. The red contours are from the gas density of the torus model. The strip of length 2″ is centered on the galaxy at 1″. The color bar scale is Jansky beam⁻¹.