VLBI observations of water masers near Herbig Ae/Be stars

We present Very Large Array and Very Long Baseline Array observations of water masers associated with Herbig Ae/Be stars. Objects observed with the VLA included V1318S, V645 Gyg: PV Cep, LK Ho:234, BD+40 degrees 4124; R Mon and W166. Observations of an evolved star, U Equ, were also obtained and indicate no current maser activity from this source. N-W find that the Amter maser emission from the BD+40 degrees 4124 stellar aggregate (Hillenbrand et al. 1995) is most likely associated either with LkH alpha 225-S or a more embedded source nearby. This is confirmed by single dish observations of which we were not aware at the time of our observations (Testi 2003). The water masers form an elongated ring on the sky and show interesting velocity structure.