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Paper: VLBI Observations of Water Masers near Herbig Ae/Be Stars
Volume: 340, Future Directions in High Resolution Astronomy: The 10th Anniversary of the VLBA
Page: 413
Authors: Marvel, K.B.; Mannings, V.
Abstract: 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 Cyg, PV Cep, LK Hα234, BD+40°4124, R Mon and W166. Observations of an evolved star, U Equ, were also obtained and indicate no current maser activity from this source. We find that the wa- ter maser emission from the BD+40°4124 stellar aggregate (Hillenbrand et al. 1995) is most likely associated either with LkHα225-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.
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