NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-22 T01:58:29 PDT
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For refcode 2002ApJS..141...13B:
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Copyright by American Astronomical Society. Reproduced by permission
2002ApJS..141...13B The VLBA Calibrator Survey - VCS1 A. J. Beasley Owens Valley Radio Observatory, California Institute of Technology, P.O. Box 968, Big Pine, CA 93513; tbeasley@ovro.caltech.edu D. Gordon Raytheon ITSS and NASA Goddard Space Flight Center, Code 926.9, Greenbelt, MD 20771; dgg@leo.gsfc.nasa.gov A. B. Peck Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138; apeck@cfa.harvard.edu L. Petrov and D. S. MacMillan NVI, Inc., and NASA Goddard Space Flight Center, Code 926, Greenbelt, MD 20771; pet@leo.gsfc.nasa.gov, dsm@leo.gsfc.nasa.gov E. B. Fomalont National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22903; efomalon@nrao.edu and C. Ma NASA Goddard Space Flight Center, Code 926, Greenbelt, MD 20771; cma@virgo.gsfc.nasa.gov Received 2002 January 3; accepted 2002 January 22 ABSTRACT A catalog containing milliarcsecond-accurate positions of 1332 extragalactic radio sources distributed over the northern sky is presented - the Very Long Baseline Array Calibrator Survey (VCS1). The positions have been derived from astrometric analysis of dual-frequency 2.3 and 8.4 GHz VLBA snapshot observations; in a majority of cases, images of the sources are also available. These radio sources are suitable for use in geodetic and astrometric experiments, and as phase-reference calibrators in high-sensitivity astronomical imaging. The VCS1 is the largest high-resolution radio survey ever undertaken and triples the number of sources available to the radio astronomy community for VLBI applications. In addition to the astrometric role, this survey can be used in active galactic nuclei, Galactic, gravitational lens, and cosmological studies. Subject headings: astrometry - radio continuum: general - reference systems - surveys - techniques: interferometric
Retrieve 1497 NED objects in this reference.
Please click here for ADS abstract

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