On the Classification of the Forms of Clusters of Galaxies
Abstract
A classification of clusters of galaxies based on the relative contrast of the brightest member galaxy is described. Clusters containing a supergiant D galaxy define Type I; at the other extreme (Type III) are clusters which contain no members significantly brighter than the general bright population. A list of seventy-six clusters classified according to the present system is included.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- December 1970
- DOI:
- 10.1086/180643
- Bibcode:
- 1970ApJ...162L.149B