SEST observations of southern flat–spectrum radio sources
National Radio Astronomy Observatory, P.O. Box 0, Socorro NM 87801, U.S.A.The NRAO is operated by Associated Universities, Inc., under co–operative agreement with the National Science Foundation.
2 Onsala Space Observatory, S-439 92 Onsala, Sweden
3 Swedish–ESO Submillimetre Telescope, European Southern Observatory, Casilla 16001, Santiago 19, Chile
4 National Radio Astronomy Observatory, 949 North Cherry Ave., Campus Building 65, Tucson AZ 85721, U.S.A.
Send offprint request to: A.J. Beasley
Accepted: 4 December 1996
We present the results of a 2 & 3 mm Swedish–ESO Submillimetre Telescope continuum survey of bright southern flat–spectrum radio sources. Our sample consists of all sources in the PKSCAT90 catalog south of declination with accurate positions (), and predicted 3 mm flux (based on published low–frequency spectral indices) greater than 300 mJy (47 sources). In addition, 32 bright radio sources from the USNO Radio-Optical Reference Frame catalog have been observed. Our overall detection rate for the combined sample is 66% above typical limits of . This survey has identified many new sources suitable for use as phase and pointing calibrators for southern millimeter interferometers. A number of individual sources are discussed.
Key words: galaxies: active / BL Lacertae objects: general / quasars: general / radio continuum: general; galaxies
© European Southern Observatory (ESO), 1997