Four examples of spectra showing the isolated component of the N2H+(1–0) multiplet (HFS 1) in the original data cube (i.e. before subtracting unrelated velocity components). The positions of these spectra are indicated at the top-left corner of each panel. The central panel is the N2H+(1–0) intensity map (integrated from −11.4 km s−1 to +16.8 km s−1 – cf. Fig. 1b). The red filled circles in the central panel also mark the positions of the four spectra. Colored horizontal segments indicate the velocity ranges of the various fiber-like structures (see Table 3).
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