VLA survey of Abell clusters of galaxies I. Virtual Observatory Resource

Authors
  1. Zhao J.-H.
  2. Burns J.O.
  3. Owen F.N.
  4. Published by
    CDS
Abstract

We report the results of a VLA survey at 20cm of a complete sample of nearby Abell clusters (D<=3). We have compiled an extensive catalog of cluster radio sources with S_20_>10mJy from a combination of our VLA observations and observations of similar resolution with the Westerbork Synthesis Radio Telescope (WSRT). Using these radio data and X-ray data from the Einstein observatory, we have analyzed the properties of these clusters. Unlike that previously suggested, no significant correlation is found between 20cm radio power and X-ray luminosity. There is weak evidence that richer clusters have a higher probability of radio emission. Based on Rood-Sastry morphological types of clusters, we do not find any strong evidence that regular-type clusters are statistically more likely to be radio loud than irregular-type clusters. However, Bautz-Morgan types I and II-III are found to have comparable radio-detection rates; but Bautz-Morgan Type III clusters are likely to have a lower radio-detection rate. A weak correlation between X-ray-cooling mass-accretion rates and radio powers was found for central, dominant galaxies in cooling-flow clusters. This might suggest that either cooling accretion directly fuels the central engine and/or cooling flows strongly interact with (e.g., confine) the radio plasma. In addition, radio sources associated with central dominant galaxies in cooling-flow clusters tend to be small in comparison with those in non-cooling-flow clusters. This might suggest that cooling flows tend to obstruct the propagation of radio jets from central, dominant galaxies.

Keywords
  1. galaxy-clusters
  2. radio-sources
  3. x-ray-sources
Bibliographic source Bibcode
1989AJ.....98...64Z
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/98/64
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/98/64
Document Object Identifer DOI
doi:10.26093/cds/vizier.50980064

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/98/64
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/98/64
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/98/64
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/AJ/98/64/cluster?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/98/64/cluster?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/98/64/cluster?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/98/64/radio?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/98/64/radio?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/98/64/radio?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/98/64/optical?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/98/64/optical?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/98/64/optical?

History

2005-03-05T22:11:42Z
Resource record created
2005-03-05T22:11:42Z
Created
2012-11-13T12:58:59Z
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