Millimeter-wave continuum emission of V838 Mon. Left: ALMA map at 1.3 mm with all discussed sources labeled. Right: residual emission after subtracting Gaussian fits to components M and B. Ellipses drawn with a full line show the FWHM of the fitted Gaussian components. White ellipses drawn with a dashed line show the FWHM of the restoring beam. Two red large circles in the right panel are centered on the position of component M and are drawn for radii of 225 and 600 au; they illustrate the characteristic physical scales of the remnant (see Sect. 3). Contours in both imagesshow the original continuum emission at 0.2, 0.3, 0.4, 0.6, 0.8, and 0.95 times the peak emission. The maps have the same color scale. The angular offsets are with respect to the best-fit central position of the M component.