Velocity map of CO(6−5) from Fig. 2 overlaid onto CO(1−0) contours from ATCA, derived by integrating the CO(1−0) across the velocity ranges –100 − +20 km s^-1 (light-green #1), +50 − +110 km s^-1 (dark-green #2) and +110 − +170 km s^-1 (red #3) (EM15). Levels: 2.8, 3.5, 4.2, 4.9, 5.6, 6.3 ×σ (σ = 12 mJy beam^-1 × km s^-1 for component #1 and σ = 7.3 mJy beam^-1 × km s^-1 for components #2  and #3). The color-codings of the CO(1−0) contours and CO(6−5) velocity map are closely matched.