ALMA 1.2-mm continuum (grayscale map and white contours). The color scale at the topgives the intensity of the map. The plotted levels are from 10 to 90% of 0.032 Jy beam⁻¹ in steps of 10%. The main continuum sources are indicated with their corresponding labels. The level at 10% of the peak around each source is plotted in magenta. The velocity-integrated intensity of the CH₃ OH 5_0,5 –4_0,4 line is shown with dashed cyan contours, plotting levels from 20 to 90% of 1.1 Jy beam⁻¹ km s⁻¹ in steps of 10%. The ALMA beams for the continuum and the CH₃OH 5_0,5 –4_0,4 line are reported on the bottom left and right corners, respectively. The big white star marks the position of source “a” (Moscadelli et al. 2013).