ALMA continuum observations of GSS30 IRS at 1.3 mm. Left: continuum image of GSS30 IRS3. The white contours are 5, 10, 20, 40, 60, 80, 100, 130, 160, 190, and 220 times the rms (1σ = 18.5 µJy beam^–1). Center: Model image of the Gaussian fit. Right: residual from the model image of the Gaussian fit. The white contours are –20, –10, 5, 10, 20, 40, 60, 80, 100, 130, 160, 190, and 220 times the rms. The dashed lines represent negative contours. The beam size is represented by the filled ellipse in the bottom left corner of the three images.