Maps of the 3 mm continuum emission obtained with ALMA. (a) Data acquired on June 6, 2019. Contour levels range from 0.52 to 16.12 in steps of 2.6 mJy beam⁻¹. The cross marks the peak of the 900 μm continuum emission imaged by Liu et al. (2020). The circle in the bottom left represents the synthesised beam. (b) Same as the top panel, but for the map obtained on September 3, 2021. Contour levels range from 0.29 to 16.24 in steps of 1.45 mJy beam⁻¹.