SEST observations of southern flat–spectrum radio sources

¹ 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

Received: 25 November 1996
Accepted: 4 December 1996

Abstract

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.