Optical and X-ray clusters as tracers of the supercluster-void network. II The spatial correlation function

Details Optical and X-ray clusters as tracers of the supercluster-void network. II The spatial correlation function Optical and X-ray clusters as tracers of the supercluster-void network. II The spatial correlation function

2000-12-29

arxiv.org/abs/astro-ph/0012537v1

Astronomy and Astrophysics

Astrophysics

LaTex (sty files added), 9 pages, 6 eps figures, submitted to Astronomical Journal. Animations of the 3D distribution of super

Scientific paper

10.1086/338086

We study the space distribution of Abell and X-ray selected clusters of galaxies from the ROSAT Bright Source Catalog, and determine correlation functions for both cluster samples. On small scales the correlation functions depend on the cluster environment: clusters in rich superclusters have a larger correlation length and amplitude than all clusters. On large scales correlation functions depend on the distribution of superclusters. On these scales correlation functions for both X-ray and Abell clusters are oscillating with a period of ~115 h^{-1} Mpc. This property shows the presence of a dominating scale in the distribution of rich superclusters.

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