Dust continuum images at various frequencies. The color scale is shown on the top of each panel starting at 5σ. The white contours indicate the 5, 20, 35,... σ contours up to the peak intensity. A scale of 100 au is shown in the first two panels for reference. The synthesized beam is indicated by a white ellipse in the bottom left corner of each panel. a: NOEMA observations at 203 GHz. The color scale spans linearly from 0 to the maximum intensity of 93 mJy beam⁻¹. The square box indicates the 1″ × 1″ region of the ALMA data that is shown in panels b, c and d. b: dust continuum image of the 240 GHz ALMA data. The color scale spans up to the maximum intensity of 5 mJy beam⁻¹. c: dust continuum image of the 260 GHz ALMA data. The color scale spans from 0 to the maximum intensity of 9.8 mJy beam⁻¹. d: dust continuum emission of the combined ALMA data imaged at 242 GHz. Similarly, the color scale spans from 0 to the maximum intensity of 5.1 mJy beam⁻¹.