The VLBA Calibrator Survey - VCSI

被引：291

作者：

Beasley, AJ

Gordon, D

Peck, AB

Petrov, L

MacMillan, DS

Fomalont, EB

Ma, C

机构：

[1] CALTECH, Owens Valley Radio Observ, Big Pine, CA 93513 USA

[2] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[3] Raytheon ITSS, Greenbelt, MD 20771 USA

[4] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[5] NVI Inc, Greenbelt, MD 20771 USA

[6] Natl Radio Astron Observ, Charlottesville, VA 22903 USA

来源：

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 2002年 / 141卷 / 01期

关键词：

astrometry; radio continuum : general; reference systems; surveys; techniques : interferometric;

D O I：

10.1086/339806

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页码：13 / 21

页数：9

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