•Galaxies
differ in these types (Abell)
–In
cD clusters galaxy distribution is very similar to
star distribution in globular clusters.
–Spiral-rich
clusters and irregular clusters tend not to be symmetric or
concentrated.
–Spiral-poor
clusters are intermediate cf. above.
–In
spiral rich clusters, all galaxy types similarly distributed
and no mass segregation, but in cD and spiral-poor clusters,
you don’t see spirals in the central regions where
the most massive galaxies reside.
–