Diversity among galaxy clusters

Journal Article · Fri Jan 01 04:00:00 EST 1988 · Sky Telesc.; (United States)

OSTI ID:5275422

Struble, M F; Rood, H J

The classification of galaxy clusters is discussed. Consideration is given to the classification scheme of Abell (1950's), Zwicky (1950's), Morgan, Matthews, and Schmidt (1964), and Morgan-Bautz (1970). Galaxies can be classified based on morphology, chemical composition, spatial distribution, and motion. The correlation between a galaxy's environment and morphology is examined. The classification scheme of Rood-Sastry (1971), which is based on clusters's morphology and galaxy population, is described. The six types of clusters they define include: (1) a cD-cluster dominated by a single large galaxy, (2) a cluster dominated by a binary, (3) a core-halo cluster, (4) a cluster dominated by several bright galaxies, (5) a cluster appearing flattened, and (6) an irregularly shaped cluster. Attention is also given to the evolution of cluster structures, which is related to initial density and cluster motion.

• Research Organization: Pennsylvania Univ., Philadelphia; Institute for Advanced Study, Princeton, NJ (USA)
• OSTI ID: 5275422
• Journal Information: Sky Telesc.; (United States), Journal Name: Sky Telesc.; (United States) Vol. 75; ISSN SKTEA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHEMICAL COMPOSITION
CLASSIFICATION
CONFIGURATION
DENSITY
DISTRIBUTION
ELLIPTICAL CONFIGURATION
GALACTIC EVOLUTION
GALAXY CLUSTERS
MORPHOLOGY
MOTION
PHYSICAL PROPERTIES
SPATIAL DISTRIBUTION
SPIRAL CONFIGURATION