The angular cross-correlation function in clusters of galaxies

We analyze angular cross-correlation functions between distance classes D=1-4 and D=6 of Abell and ACO catalogs of rich clusters of galaxies and we study the dependence of these correlations on cluster richness. We find that anticorrelations are present in the rich sample R ≥ 1 of ACO catalog, simil...

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Detalles Bibliográficos
Autores principales: García-Lambas, D., Nicotra, M.
Formato: Articulo Comunicacion
Lenguaje:Español
Publicado: 1990
Materias:
Astronomía
Galaxia
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/142879
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-142879
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Astronomía
Galaxia
spellingShingle Astronomía
Galaxia
García-Lambas, D.
Nicotra, M.
The angular cross-correlation function in clusters of galaxies
topic_facet Astronomía
Galaxia
description We analyze angular cross-correlation functions between distance classes D=1-4 and D=6 of Abell and ACO catalogs of rich clusters of galaxies and we study the dependence of these correlations on cluster richness. We find that anticorrelations are present in the rich sample R ≥ 1 of ACO catalog, similar to that obtained by Szalay et al. in Abell catalog. However, the anticorrelations vanish for the sample of nearby poor clusters R=0, D=1-4 vs R ≥ 1, D=6 in both catalogs. We apply the decontamination process discussed by Dekel et al. and Olivier et al., and we analyze similar cross-correlation in the decontaminated catalogs. The results indicate that the decontamination catalogs. We apply the decontamination process discussed by Dekel et al. and Olivier et al., and we analyze similar cross-correlations in the decontaminated catalogs. The results indicate that the decontamination process does not change the systematic found in the cross-correlation functions of original catalogs. We perform several statistical analyzes in order to investigate the possibility that combined effects of Abell radius and the clustering of nearby clusters, and a bias in the assignment of distances may have contributed to enhancement of the anti-correlations.
format Articulo
Comunicacion
author García-Lambas, D.
Nicotra, M.
author_facet García-Lambas, D.
Nicotra, M.
author_sort García-Lambas, D.
title The angular cross-correlation function in clusters of galaxies
title_short The angular cross-correlation function in clusters of galaxies
title_full The angular cross-correlation function in clusters of galaxies
title_fullStr The angular cross-correlation function in clusters of galaxies
title_full_unstemmed The angular cross-correlation function in clusters of galaxies
title_sort angular cross-correlation function in clusters of galaxies
publishDate 1990
url http://sedici.unlp.edu.ar/handle/10915/142879
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AT nicotram theangularcrosscorrelationfunctioninclustersofgalaxies
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AT nicotram angularcrosscorrelationfunctioninclustersofgalaxies
bdutipo_str Repositorios
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