High resolution channel maps of relatively low energy (3954 K or 2748 cm⁻¹) (0,0,0) 13_6,8−14_3,11 transition of water at 259.952 GHz in R Hya and S Pav (upper and lower panels). Caption as in Fig. 6 except for the velocity range and the line peak flux density, 15 and 9 mJy/beam in R Hya and S Pav, respectively; the typical r.m.s. noise is 1 mJy/beam for both stars. The HPBW is (48×28) mas at PA 72° and (34×25) mas at PA 67° for the line and continuum in R Hya, respectively, and (24×19 mas) at PA −19° (line) and (25×20) mas at PA −13° (continuum) in S Pav.