Radio sources in Zwicky clusters of galaxies. II. Detailed interferometer observations and analysis

Journal Article · Mon Oct 01 04:00:00 EDT 1979 · Astron. J.; (United States)

DOI:https://doi.org/10.1086/112567· OSTI ID:5786271

Burns, J O; Owen, F N

Interferometer observations of a sample of 23 4C sources which spatially coincide with Zwicky clusters of galaxies are reported. These sources are used to examine the nature of extended radio emission from galaxies in poor clusters. The majority of these radio sources exhibit some signs of morphological distortion (i.e., head--tail structure) which is indicative of dynamic interaction with a relatively dense intracluster gas. The properties of the Zwicky cluster sources are compared with a similar radio survey of rich Abell clusters. The results suggest that the environments around radio galaxies (i.e., density and temperature of the intracluster gas) are similar in rich and poor clusters. The relative numbers of Abell and non-Abell/Zwicky cluster sources further indicate that most (60--100%) of the total population of intermediate luminosity radio galaxies may be in clusters of various richnesses. A nonrigorous analysis of existing data also on nearby radio galaxies suggests that most radio galaxies including those in this sample are in superclusters of galaxies; the implications of this result are briefly discussed.

• Research Organization: National Radio Astronomy Observatory, VLA Program, Socorro, New Mexico 87801
• OSTI ID: 5786271
• Journal Information: Astron. J.; (United States), Journal Name: Astron. J.; (United States) Vol. 84:10; ISSN ANJOA
• Country of Publication: United States
• Language: English

Related Subjects

640103* -- Astrophysics & Cosmology-- Quasi-Stellar
Radio
& X-Ray Sources-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC RADIO SOURCES
COSMIC RAY SOURCES
COSMIC X-RAY SOURCES
GALAXIES
GALAXY CLUSTERS
INTERFEROMETRY
INTERGALACTIC SPACE
MORPHOLOGY
QUASARS
RADIO GALAXIES
SPACE