Left: continuum intensity (med-res) zoomed in on the cavity, showing faint surface brightness emission including a faint ring at ﹩0\mathop{.}\limits^{{\prime\prime} }25﹩ indicated by a dotted ellipse. Middle: corresponding frank model. Right: residuals obtained after subtracting the frank model from the data. The beams are shown in the lower-left corner. The locations of the planets are marked with dots, and that of the star with a plus sign.