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Fig. A.5.
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Spectra of HCO+ and H13CO+J = 1 − 0 emission towards eight positions along the GCMF restricted to a velocity range of −30 to 30 km s−1 for better visualisation of the emission features. The 13C18O spectra are scaled by a factor of 3. The blue dashed line corresponds to the peak of the H13CO+ line.
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