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Fig. 3
Same as Fig. 2 but toward W49 (N) (left), and W51 E (right). Here, the spectra of the ground-state lines are offset from the baseline by (40, 35, 10, and − 20 K) and (35, 25, 10, and − 12 K), for W49 (N) and W51 E, respectively.
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