Same as Fig. 6, but for R Aqr. Top panel: colour map of integrated intensity. Contours indicate continuum emission at 3,10,20,30,and40σ. The plus sign designates the position of the star, the filled white ellipse the synthesised beam. Bottom panel: spectrum extracted for the central pixel (black). The vertical red lines indicate the relative strength of the HFS components. The red histogram represents a multi-component synthetic line profile with a FWHM of 5.0 km s^-1.