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The VLBA Calibrator Survey - VCS1

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arxiv astro-ph/0201414 v1 pith:3S5MEIAU submitted 2002-01-24 astro-ph

The VLBA Calibrator Survey - VCS1

classification astro-ph
keywords vcs1radiosourcessurveyastrometricavailablevlbacalibrator
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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. The VCS1 catalog will soon be available at www.nrao.edu/vlba/VCS1 .

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  1. Direct VLBI evidence for a buried AGN in the triple-merger LIRG UGC 2369S

    astro-ph.GA 2026-07 unverdicted novelty 4.0

    VLBI imaging detects a compact radio source with Tb > 10^7 K and flat spectrum in the northern core of UGC 2369S, confirming a buried low-luminosity AGN.