Astrometrically Registered Simultaneous Observations of the 22 GHz H${}_2$O and the 43GHz SiO masers towards R Leonis Minoris using KVN and Source/Frequency Phase Referencing

Richard Dodson, María J. Rioja, Tae-Hyun Jung +22

Oxygen-rich Asymptotic Giant Branch (AGB) stars can be intense emitters of SiO ($v$=1 and 2, J=1$\to$0) and H${}_2$O maser lines at 43 and 22 GHz, respectively. VLBI observat…