title: Spectra, Variability, Size, and Polarization of H2O Microwave Emission Sources in the Galaxy.
abstract: Radio spectral line radiation of water molecules at a wavelength of 1.35 centimeters has been measured from eight sources in the galaxy. The sources are less than I arc minute in diameter, have extremely high brightness temperatures, and show many spectral features. Some spectral features are slightly polarized and some have changed greatly in intensity in a few weeks time.
authors.forename: S H
authors.initials: SH
authors.lastname: Knowles
authors.forename: C H
authors.initials: CH
authors.lastname: Mayer
authors.forename: A C
authors.initials: AC
authors.lastname: Cheung
authors.forename: D M
authors.initials: DM
authors.lastname: Rank
authors.forename: C H
authors.initials: CH
authors.lastname: Townes