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Fig. A.2


Channel maps of C18O (top), C17O (second row), CS (third row), C34S (forth row) and N2H+ (bottom). The maps of C18O and N2 H+ are smoothed with a Gaussian kernel of FWHM = 5′′, and C17O and C34S with FWHM = 25′′. For N2 H+, the hyperfine components were fitted assuming the LTE line ratios, and only the isolated component is shown here. For C17O, the target line (F = 3/2–5/2) is blended with the F = 7/2–5/2 component, but the F = 5/2–5/2 one is visible, shifted by vlsr = − 3.3 km s−1.

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