LX-{sigma} relation of galaxy clusters Virtual Observatory Resource

Authors
  1. Shen S.
  2. Kauffmann G.
  3. Linden A.V.D.
  4. White S.D.M.
  5. Best P.N.
  6. Published by
    CDS
Abstract

We use the ROSAT All-Sky Survey to study the X-ray properties of a sample of 625 groups and clusters of galaxies selected from the Sloan Digital Sky Survey. We stack clusters with similar velocity dispersions and investigate whether their average X-ray luminosities and surface brightness profiles vary with the radio activity level of their central galaxies. We find that at a given value of {sigma}, clusters with a central radio active galactic nucleus (AGN) have more concentrated X-ray surface brightness profiles, larger central galaxy masses and higher X-ray luminosities than clusters with radio-quiet central galaxies. The enhancement in X-ray luminosity is more than a factor of 2, is detected with better than 6{sigma} significance and cannot be explained by X-ray emission from the radio AGN itself. This difference is largely due to a subpopulation of radio-quiet, high velocity dispersion clusters with low-mass central galaxies. These clusters are underluminous at X-ray wavelengths when compared to otherwise similar clusters where the central galaxy is radio-loud, more massive, or both.

Keywords
  1. galaxy-clusters
  2. x-ray-sources
  3. galaxy-kinematics
Bibliographic source Bibcode
2008MNRAS.389.1074S
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/389/1074
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/389/1074
Document Object Identifer DOI
doi:10.26093/cds/vizier.73891074

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/389/1074
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/389/1074
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/389/1074
IVOA Table Access TAP
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/MNRAS/389/1074/tablea1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/389/1074/tablea1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/389/1074/tablea1?

History

2009-12-10T22:01:17Z
Resource record created
2009-12-10T22:01:17Z
Created
2024-07-07T20:16:43Z
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