PV diagrams of molecular gas emission along the major (PA = 95°) and minor (PA = 5°) axes of the galaxy. Top row: CO(2–1) emission from GB09 as a color map, with white contours of the H₂ S(1) line overlaid. A velocity shift of 30 km s⁻¹ was applied to the CO data to match our systemic velocity. Second and third rows: H₂ S(5) and S(9) emission lines, respectively. In all major-axis panels, the blue line marks the best-fit CO rotation curve. Contours begin at 10σ.