Fig. 8
C2H N = 4−3 J = 9/2–7/2 spectra toward S129 (upper panel) and S130 (lower panel). The spectra were obtained toward the positions of the green crosses shown in Fig. 2. The red curves correspond to Gaussian fittings. The derived parameters are shown in Table 4. The dashed vertical green line indicates the RV for the H2 1−0 S(1) line related to S129 found by Lim et al. (2018).
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