Fig. 2

WideX spectra at 1.4 mm at the position of A1 (upper panel), A2 (middle panel), and A3 (lower panel). We note the typical hot-corino chemically rich spectrum observed towards A2. As already shown by Taquet et al. (2015), the spectrum presents emission from several COMs, such as CH3OH (methanol), HCOOH (formic acid), CH3OCHO (methyl formate), and CH3OCH3 (dimethyl ether).
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