Comparing continuum and line emission. Left panel: H₂CO 3(0,3)−2(0,2) moment 0 map integrated between −5 and 15 km s⁻¹. This velocity range was chosen as this represents the full range of emission detected at or above 4σ. Right panel: 216 GHz continuum emission (colour scale) taken from the FAUST dataset with H₂CO 3(0,3)−2(0,2) overlaid in pink contours. In both images, contours start at 4σ and end at 44σ in 8σ increments (σ = 17.6 mJy beam⁻¹ km s⁻¹), the positions of protostars A and B are represented by the black stars and the ALMA synthesised beam is shown in the lower left corner.