Evolution of radio galaxies: A VLA survey of high-redshift clusters of galaxies

Journal Article · Mon Nov 01 00:00:00 EST 1982 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/160391· OSTI ID:6236478

Jaffe, W

We present data from a VLA 1465 MHz survey of high-redshift galaxy clusters with redshifts of 0.25 to 0.9. We detect sources in 13 of 55 clusters. The sample shows strong evolution of the radio luminosity function (RLF) during this period even for weak cluster radio galaxies, i.e., those with 24.4<25.4 (W Hz/sup -1/). The changes in the RLF with redshift for these galaxies include an increase in the characteristic luminosity P/sub asterisk/ above which the slope of the RLF steepens and a moderation or reversal of the initial increase in density of weak sources at larger redshifts. This latter effect is not apparent in the study of field radio galaxies of Windhorst et al.

• Research Organization: National Radio Astronomy Observatory, Charlottesville, Virginia
• OSTI ID: 6236478
• Journal Information: Astrophys. J.; (United States), Vol. 262:1
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
GALAXY CLUSTERS
RED SHIFT
RADIO GALAXIES
GALACTIC EVOLUTION
COSMIC RADIO SOURCES
LUMINOSITY
GALAXIES
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
640105* - Astrophysics &amp; Cosmology- Galaxies
640103 - Astrophysics &amp; Cosmology- Quasi-Stellar
Radio
&amp; X-Ray Sources- (-1987)