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Fig. 6
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Position–velocity (PV) diagrams for CO 2–1 (upper panels) above 3σ. The horizontal dashed red line represents the systemic velocity of 3.7 km s−1, while the vertical dashed blue line corresponds to the central position of source B. The different PAs (lower panel) are indicated by yellow lines over the CO 2–1 moment 8 map.
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