Clusters of galaxies position angles Virtual Observatory Resource

Authors
  1. Plionis M.
  2. Published by
    CDS
Abstract

The position angles of a large number of Abell and Shectman clusters, identified in the Lick map as surface galaxy-density enhancements, are estimated. I determine the major axis orientation of a total of 637 clusters, of which 448 are Shectman clusters (202 of which are also Abell clusters) and 189 are Abell clusters not originally detected by Shectman due to his adopted density threshold. Using published redshifts for 277 of these clusters I have detected strong nearest neighbor alignments over scales up to ~15h^-1^Mpc at a>~2.5-3{sigma} significance level, while quite weak alignments are detected even up to ~60h^-1^Mpc. A more significant alignment signal (~4{sigma}) is detected among all neighbors residing in superclusters and having separations <~ 10h^-1^Mpc. Again, weaker but significant alignments are found when larger separations are considered. Since my cluster sample is neither volume limited nor redshift complete (which would have tended to wash out any real alignment signal), the alignments detected should reflect a real and possibly a stronger underline effect.

Keywords
  1. galaxy-clusters
Bibliographic source Bibcode
1994ApJS...95..401P
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/95/401
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJS/95/401
Document Object Identifer DOI
doi:10.26093/cds/vizier.20950401

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/95/401
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/95/401
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/95/401
IVOA Table Access TAP
https://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).

History

1998-07-20T10:54:38Z
Resource record created
1998-07-20T10:54:38Z
Created
1998-07-20T10:54:51Z
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