Fig. 3
The position-velocity plot of the 12CO(2−1) emission at a position angle of −40°. The contour levels are 1.4, 1.8, 2.3, 2.7, 3.2, 3.6, 4.1, and 4.5 Jy beam-1, and 1 σ is 0.7 Jy beam-1. The black vertical dashed line marks the cloud systemic velocity. The blue and red vertical dashed lines mark the velocity ranges of the blueshifted and redshifted emission, respectively.
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