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Fig. 2


Up: 12CO J = 3−2 spectra. Bottom: 13CO J = 3−2 spectra. The horizontal axis of each spectra is velocity, and ranges from 30 to 80 km s-1, while the vertical axis is brightness temperature and goes from  − 1 to 7 K. The center, i.e. the (0, 0) offset, in both lines is the same.

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