title: Galactic water vapor emission: further observations of variability.
abstract: Recent observations of the 1.35-centimeter line emission of water vapor from galactic sources show short-term variability in the spectra of several sources. Two additional sources, Cygnus 1 and NGC 6334N, have been observed, and the spectra of W49 and VY Canis Majoris were measured over a wider range of radial velocity.
authors.forename: S H
authors.initials: SH
authors.lastname: Knowles
authors.forename: C H
authors.initials: CH
authors.lastname: Mayer
authors.forename: W T
authors.initials: WT
authors.lastname: Sullivan
authors.forename: A C
authors.initials: AC
authors.lastname: Cheung