This article has an erratum: [https://doi.org/10.1051/0004-6361/201935428e]
Same as Fig. 5 but for the column density multiplied by the solid angle of the COM emission and divided by either the 1.3 mm continuum peak flux density or the 1.3 mm continuum flux density integrated over the size of the COM emission. SerpM-S68Nb is located outside the primary beam at 1.3 mm so we did not attempt any normalization to the continuum emission.
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