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Fig. 2
Hanning-smoothed spatially averaged 13CO(2−1) and C18O(2−1) spectra across the mapped field. The C18O(2−1) spectrum is offset by –1.45 K from zero baseline for reasons of clarity. The vertical red dashed line indicates the systemic velocity of SMM 3 derived from C17O(2−1) in Paper III.
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