Moment 0 maps for the two high spectral resolution CH₃OCH₃ transitions. Top: the 257.911 GHz transition. The contours in white start at 4σ at every 2σ for 257.911 GHz (1σ = 22.5 mJy beam⁻¹ km s⁻¹). The dust continuum map from Alves et al. (2019) is superposed in cyan. Bottom: the 258.549 GHz transition. The contours in white start at σ every 6σ at 258.548 GHz (1σ = 5.1 mJy beam⁻¹ km s⁻¹). The image component sizes deconvolved from the beam are indicated with an ellipse (in cyan) at the −2 km s⁻¹ channel, a dashed ellipse at the 2.8 km s⁻¹ channel, and a dot-dashed ellipse at the 9.9 km s⁻¹ channel. Sources A and B are indicated as filled white circles. In both figures, the ellipse in the bottom left corner represents the ALMA synthesised beam.