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Fig. 2

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Selection of lines detected with the IRAM 30 m telescope, labeled with the molecular species name in blue; the other lines are shown in Figs. A.1–A.9. LTE synthetic spectra are overlaid in green for selected species (see Sects. 3.4 and 3.5). In each panel, the bottom and top axes are labeled in frequency and velocity, respectively.

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