Fig. 1
Download original image
Left: ALMA 0.87 mm continuum emission from the HD 172555 planetary system (star and disk) obtained by joint imaging of the combined visibility dataset. Right: same as the left panel, but imaged after removing the star from the visibilities, as described in Sect. 3. The symbol in the center notes the position of the star. In both panels, north is up and east is left. Contours are ±[2, 4, 6] × 10.4 µJy beam−1, the RMS noise level. Images are made with a natural weighting and a u-v taper, as described in Sect. 2.
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