Continuum emission of the combined array data of R Hya, at an effective mean frequency of 250 GHz. Contours are drawn at −3, 3, 6, 12, 24, 96 and 768 times the continuum rms noise value (3.5 × 10⁻⁵ Jy beam⁻¹), negative contours are dashed. The ALMA beam size (0.057″ × 0.047″) is shown in the bottom right corner. The stellar photosphere as determined from the visibility fitting is drawn as a small black circle in the centre.