ALMA maps per velocity channel of ¹²CO J = 6−5 emission in R Aqr; seethe LSR velocities in the upper left corners. The contours are logarithmic, with a jump of a factor 2 and a first level of 50 mJy beam⁻¹, equivalent to 3.6 times the rms and 41.5 K. The dashed contours represent negative values. The HPBW is shown in the inset in the last panel. The velocity channels are the same as in Fig. 1, but the represented field is larger. The image center is the centroid of the continuum, whose image has not been subtracted (Sect. 2).