The VLBA Calibrator Survey—VCS1 | Zendy

A. J. Beasley | Zendy; David Gordon | Zendy; A. B. Peck | Zendy; Leonid Petrov | Zendy; D. S. MacMillan | Zendy; E. B. Fomalont | Zendy; Chunyan Ma | Zendy

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The VLBA Calibrator Survey—VCS1

Author(s) -

A. J. Beasley,

David Gordon,

A. B. Peck,

Leonid Petrov,

D. S. MacMillan,

E. B. Fomalont,

Chunyan Ma

Publication year - 2002

Publication title -

the astrophysical journal supplement series

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.546

H-Index - 277

eISSN - 1538-4365

pISSN - 0067-0049

DOI - 10.1086/339806

Subject(s) - very long baseline interferometry , very long baseline array , physics , sky , astronomy , astrometry , active galactic nucleus , astrophysics , gravitational lens , remote sensing , galaxy , geology , stars , redshift

A catalog containing milliarcsecond--accurate positions of 1332 extragalacticradio sources distributed over the northern sky is presented - the Very LongBaseline Array Calibrator Survey (VCS1). The positions have been derived fromastrometric analysis of dual-frequency 2.3 and 8.4 GHz VLBA snapshotobservations; in a majority of cases, images of the sources are also available.These radio sources are suitable for use in geodetic and astrometricexperiments, and as phase-reference calibrators in high-sensitivityastronomical imaging. The VCS1 is the largest high-resolution radio survey everundertaken, and triples the number of sources available to the radio astronomycommunity for VLBI applications. In addition to the astrometric role, thissurvey can be used in active galactic nuclei, Galactic, gravitational lens andcosmological studies. The VCS1 catalog will soon be available atwww.nrao.edu/vlba/VCS1 .Comment: 25 pages, 5 figures. Accepted to ApJ

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