H₂CO moment 1 map in colour scale with five pixels overlaid in black and white (for clarity in this case) triangles, chosen as the pixel at the location of the dust peak (A), along with the most intense pixels for each velocity range (B: 0−2 km s⁻¹, C: 2.5−3.5 km s⁻¹, D: 3.5−4 km s⁻¹ and E: 5−6 km s⁻¹). The ellipse in the bottom-left corner represents the ALMA synthesised beam.