title: Discovery of hydroxyl radio emission from infrared stars.
abstract: Radio spectral line emission from hydroxyl radicals has been detected from four infrared stars. The emission from the infrared star NML Cygni at 1612 megahertz is the strongest radio emission line yet detected. Sixteen other stars with infrared excesses showed no detectable hydroxyl radio emission.
authors.forename: W J
authors.initials: WJ
authors.lastname: Wilson
authors.forename: A H
authors.initials: AH
authors.lastname: Barrett