Imaging of very distant 3CR galaxies - high spatial resolution data for seven galaxies with z between 1. 176 and 1. 841

Journal Article · Sat Oct 01 00:00:00 EDT 1988 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/185282· OSTI ID:6553187

Le Fevre, O; Hammer, F

This report continues a series of papers discussing a complete high spatial resolution imaging survey of the highest redshift 3CR radio galaxies. CCD observations of seven 3CR galaxies with redshifts between 1.176 and 1.841 are presented. Excellent seeing conditions facilitated resolution of most of the galaxies into multiple components. Two of the galaxies are located less than 4 arcsec from a foreground bright galaxy; it is suggested that they may be gravitationally amplified by more than one magnitude. One of the objects, 3C 194 at z = 1.779, is proposed as a gravitational lens candidate. For the other galaxies observed, different interpretations are considered. The use of the high-redshift 3CR radio-galaxies as standard candles for cosmological purposes without further precautions is questioned. 30 references.

• Research Organization: Canada-France-Hawaii Telescope Corp., Kamuela, HI (USA); Paris Observatoire, Meudon (France)
• OSTI ID: 6553187
• Journal Information: Astrophys. J.; (United States), Vol. 333
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
RADIO GALAXIES
SPATIAL DISTRIBUTION
COSMIC RADIO SOURCES
COSMOLOGY
GRAVITATIONAL LENSES
IMAGES
RED SHIFT
DISTRIBUTION
GALAXIES
LENSES
640105* - Astrophysics & Cosmology- Galaxies