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Fig. 4


P-V diagram constructed from CO J = 2−1 transition for clump A–C. In the a)c) panels, contour levels are 10, 20, ..., 90% of the peak value, with a cut through the peak positions of each clump along the north-south direction, and the peak positions are shown in the upper right corner. In the d)f) panels, contour levels are the same as above panels, with a cut along the east-west direction. The blue and red vertical dashed lines mark the velocity ranges of the blueshifted and redshifted emission for each clump, respectively. The offsets given in each panel are relative to RA(J2000) = 19h43m47.85s and Dec(J2000) = 23°21′26.34′′.

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