Position-velocity diagram taken along the major axis of the circumnuclear disk PKS B1718–649 (PA = 72°), integrated over 0.5^″ in the direction perpendicular to the major axis. Black solid and dashed contours show the ¹²CO (2–1) emission and absorption, respectively. Cyan contours show the H₂ emission. Contour levels are − 5, −3, − 2σ and 3, 6, 12, 18, 24σ, respectively.The white dashed line shows the rotation curve predicted from the stellar distribution and the contribution of the SMBH to the rotation (see the text for further details).