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Fig. 2


12CO J = 2−1 intensity map (gray scale), superimposed on 12CO J = 3 − 2 (blue contours) and 13CO J = 2−1 (white contours) intensity maps. The contour levels of each CO molecule are 30, 40, ..., 90% of the peak value. The 12CO J = 3 − 2 and 13CO J = 2−1 peak values are 79.0 and 15.5 K km s-1, respectively. Letters A, B, and C indicate the different MC clumps. The dot symbols mark the mapping points of 12CO J = 2−1 and 12CO J = 3 − 2, while the black rectangle outlines the mapped field of 13CO J = 2−1.

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