T. Jenness et al., STUDIES OF EMBEDDED FAR-INFRARED SOURCES IN THE VICINITY OF H2O MASERS .1. OBSERVATIONS, Monthly Notices of the Royal Astronomical Society, 276(3), 1995, pp. 1024-1040
We have undertaken a search for submillimetre (submm) embedded cores a
ssociated with known water maser sources. For 44 water maser sources,
we found submm continuum emission from 40 (91 per cent) using the Jame
s Clerk Maxwell Telescope (JCMT). Some of the sources were then observ
ed further. Maps were made in CO and (CO)-O-18 (J = 2 --> 1) and CS (J
= 5 --> 4), using the JCMT, so that the molecular environment of the
sources could be examined. In addition the Very Large Array (VLA) was
used to find accurate positions for the water maser emission and hence
any association with compact radio continuum sources. A preliminary e
xamination of the data shows that most of the water masers are on aver
age closer than 0.1 pc to the corresponding submm source. A more detai
led analysis will follow in a later paper.