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Fig. 2.

image

Example of fitted molecular spectra for VLSR detection for the Hi-GAL source HIGALBM340.2690-0.0542. The spectra are (a) NANTEN 12CO(1–0), (b) MOPRA 12CO(1–0), (c) TRUMMS 12CO(1–0), (d) SEDIGISM 13CO(2–1), (e) SEDIGISM C18O(2–1), (f) MALT90 HCO+. In all panels the black, red, and green curves are the extracted profile, the fitted lines, and the residual, respectively. The background gray area is the ±σnoise value where σnoise is the root mean squared value of the noise amplitude (see Appendix A). The horizontal blue line shows the 5σ level.

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