More on Abell Clusters
• Complete Northern Sample:
– 1682 Clusters of richness 1-5, distance 1-6.
– Counts in Table 4.2 follow:
– This is consistent with a uniform distribution*.
– Space Density of Abell Clusters richer than 1:
– For uniform distribution, cluster centers
would be 50 h-1 Mpc apart, a factor of ten
larger than that of mean galaxies.