Head-tail radio sources in clusters of galaxies

Journal Article · Sun Feb 01 04:00:00 EST 1976 · Astrophys. J., Lett.; (United States)

DOI:https://doi.org/10.1086/182030· OSTI ID:7365115

Rudnick, L; Owen, F N

New observations are presented of six head-tail radio galaxies, five of which are previously unreported in the literature. Total intensity maps at 2695 MHz and optical identifications are presented. Some physical parameters of these sources are derived, and are found to be similar to those of the other known head-tail sources. For the 14 head-tail sources mapped to data, we find no pattern in the orientation of the tails with respect to the optical cluster centers. However, some tendency exists for the tails to be pointing away from nearby galaxies. We suggest a classification scheme for radio galaxies based on their optical dominance which illustrates the correlation between head-tail sources and galaxies of lower optical luminosity. Based on the observations available at present, we find that head-tail sources may be consistently described as resulting from relative motion of a galaxy through a hot, relatively dense, intracluster medium. (AIP)

• Research Organization: National Radio Astronomy Observatory, Green Bank, West Virginia
• OSTI ID: 7365115
• Journal Information: Astrophys. J., Lett.; (United States), Journal Name: Astrophys. J., Lett.; (United States) Vol. 203:3; ISSN AJLEA
• Country of Publication: United States
• Language: English

Related Subjects

640103* -- Astrophysics & Cosmology-- Quasi-Stellar
Radio
& X-Ray Sources-- (-1987)
640105 -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC RADIO SOURCES
ELECTROMAGNETIC RADIATION
GALAXIES
GALAXY CLUSTERS
INTERFEROMETRY
INTERGALACTIC SPACE
MAGNETIC FIELDS
RADIATIONS
RADIO GALAXIES
RADIOWAVE RADIATION
SPACE