Abell clusters of different richness

M. Einasto et al

We compare the distribution of Abell clusters of different richness in the supercluster-void network. For example, the percolation properties of clusters of different richnesses are similar:

Here we show the distribution of clusters of richness R > 0 (red spheres) and R = 0 (blue spheres) in superclusters with at least 4 members.

In this Figure superclusters have been determined with Abell clusters of all richnesses together (3D VRML model).

In this Figure superclusters have been determined using data about rich (R > 0) and poor (R = 0) clusters separately (3D VRML model). Due to lower space density of each subsample separately superclusters in this Figure are poorer, and some systems seen on upper Figure are missing.

References:

Einasto, M., Einasto, J., Tago, E., M\"uller, V., and Andernach, H. 2001, Astron.J. 122, November Issue

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