Dimethyl ether integrated intensity maps obtained with the Plateau de Bure Interferometer (sum of emission at 223.409 GHz and 223.412 GHz between 5 and 12 km s-1). The bottom image is a blowup of the Hot Core/Compact Ridge map area. The beam is 1.79″ × 0.79″; the level step and first contour are 3.8 K km s-1. The position of the millimeter source MM23 (Eisner et al. 2008) is also indicated. The main different HCOOCH3 emission peaks identified in Favre et al. (2011a) are marked by a cross and labeled MFNUMBER. Note that the dimethyl ether distribution is very similar to that of methyl formate (cf. Fig. 4 in Favre et al. 2011a, and see Sect. 5.1.1).
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