Fig. 4
ALMA maps per velocity channel of 12CO J = 2−1 emission in R Aqr; see the LSR velocities in the upper left corners, similar to Fig. 1. The contours are logarithmic, with a jump of a factor 2 and a first level of 4 mJy beam−1, equivalent to 4.9 rms and 11.33 K. The dashed contours represent negative values. The HPBW is shown in the inset in the last panel.
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