Virgo cluster radio luminosity function. I. Virtual Observatory Resource

Authors
  1. Gavazzi G.
  2. Boselli A.
  3. Published by
    CDS
Abstract

We cross-correlate the galaxies brighter than m_B_=18 in the Virgo cluster with the radio sources in the NVSS survey (1.4GHz), resulting in 180 radio-optical identifications. We determine the radio luminosity function of the Virgo galaxies, separately for the early- and late-types. Late-type galaxies develop radio sources with a probability proportional to their optical luminosity. In fact their radio/optical (R_B_) distribution is gaussian, centered at log R_B_~-0.5, i.e. the radio luminosity is ~0.3 of the optical one. The probability of late-type galaxies to develop radio sources is almost independent of their detailed Hubble type, except for Sa (and S0+S0a) which are a factor of ~5 less frequent than later types at any R_B_. Giant elliptical galaxies feed "monster" radio sources with a probability strongly increasing with mass. However the frequency of fainter radio sources is progressively less sensitive on the system mass. The faintest giant E galaxies (M_B_=-17) have a probability of feeding low power radio sources similar to that of dwarf E galaxies as faint as M_B_=-13.

Keywords
  1. galaxy-clusters
  2. radio-galaxies
  3. galaxy-classification-systems
Bibliographic source Bibcode
1999A&A...343...86G
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/343/86
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+A/343/86
Document Object Identifer DOI
doi:10.26093/cds/vizier.33430086

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/343/86
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/343/86
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/343/86
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https://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).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/343/86/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/343/86/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/343/86/table1?

History

1999-03-05T11:42:55Z
Resource record created
1999-03-05T11:42:55Z
Created
2013-02-27T06:35:21Z
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