3C 364 - A steep-spectrum radio galaxy at Z = 0.92

Details 3C 364 - A steep-spectrum radio galaxy at Z = 0.92 3C 364 - A steep-spectrum radio galaxy at Z = 0.92

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aj....106....6s&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 106, no. 1, p. 6-10.

Astronomy and Astrophysics

Astronomy

2

Active Galactic Nuclei, Luminosity, Radio Galaxies, Radio Spectra, Red Shift, Morphology, Oxygen Ions, Radio Sources (Astronomy), Spectral Emission

Scientific paper

3C 364 has many of the credentials of a luminous radio galaxy at very high redshift: faint optical magnitude, ultrasteep radio spectrum, and apparent multimodal galaxy morphology associated with a small double radio source. However, our spectroscopy shows it to be at a relatively modest redshift of z = 0.917. Its spectrum is dominated by a red stellar continuum and strong forbidden O II emission. The infrared magnitude of 3C 364 is K = 17.27, typical for 3CR and 1 Jy-class radio galaxies at z about 0.9. Its radio luminosity is much smaller than the distant 4C radio galaxies with comparably steep radio spectra. We emphasize that AGN radio properties correlate with optical/IR luminosity and redshift only in a statistical manner.

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