Zeroth moment map of OH absorption in the J = 27/2, F′ – F″ = 14–14 and 13–13 transitions. Leftpanels: F′– F″ = 14–14 transition in R Aql and S Pav. Right panels: F′ – F″ = 13–13 transition in the same sources. Offsets in RA and Dec. directions are relative to the coordinates of the peak stellar⁻ continuum as given in Tattle 1. The velocity intervals in the F′ – F″ = 14–14 and 13–13 transitions are: 55.8 to 61.2 km s⁻¹ and 56.2 to 66.2 km s⁻¹ in R Aql; −10.2 to −3.6 km s⁻¹ and −9.4 to 33.5 km s⁻¹ in S Pav The dotted white contours are at −33 and −5σ The red contour delineates the extent at half peak intensity of the continuum emission. The line and continuum beams are shown at the bottom left of each map in white and dark-red, respectively. The line HPBW is (27 × 22 mas) at PA 18° and (27 × 21) mas at PA −3° in R Aql and S Pav, respectively. The continuum beam is (24 × 22 mas at: PA −13 (R Hya) and (25 × 20) mas at PA −13° (S Pav).