LBA Calibrator Survey (LCS1) Virtual Observatory Resource

Authors
  1. Petrov L.
  2. Phillips C.
  3. Bertarini A.
  4. Murphy T.
  5. Sadler E.M.
  6. Published by
    CDS
Abstract

We present a catalogue of accurate positions and correlated flux densities for 410 flat-spectrum, compact extragalactic radio sources previously detected in the AT20G survey. The catalogue spans the declination range [-90{deg}, -40{deg}] and was constructed from four 24-hour VLBI observing sessions with the Australian Long Baseline Array at 8.3GHz. The VLBI detection rate in these experiments is 97%, the median uncertainty of the source positions is 2.6mas, and the median correlated flux density on projected baselines longer than 1000km is 0.14Jy. The goals of this work are 1) to provide a pool of southern sources with positions accurate to a few milliarcsec, which can be used for phase referencing observations, geodetic VLBI and space navigation; 2) to extend the complete flux-limited sample of compact extragalactic sources to the southern hemisphere; and 3) to investigate the parsec-scale properties of high-frequency selected sources from the AT20G survey. As a result of this VLBI campaign, the number of compact radio sources south of declination -40 deg which have measured VLBI correlated flux densities and positions known to milliarcsec accuracy has increased by a factor of 3.5. The catalogue and supporting material is available at http://astrogeo.org/lcs1.

Keywords
  1. astrometry
  2. very-long-baseline-interferometry
  3. optical-observation
  4. catalogs
  5. radio-sources
Bibliographic source Bibcode
2011MNRAS.414.2528P
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/414/2528
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/414/2528
Document Object Identifer DOI
doi:10.26093/cds/vizier.74142528

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/414/2528
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/414/2528
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/414/2528
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/414/2528/table6?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/414/2528/table6?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/414/2528/table6?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/414/2528/table3?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/414/2528/table3?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/414/2528/table3?

History

2011-06-29T07:35:14Z
Resource record created
2011-06-29T07:35:14Z
Created
2024-07-14T20:14:59Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr