Observations of parallel radio sources 0211-479, 0214-480 and 0215-483

Astronomy and Astrophysics – Astronomy

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Astronomical Spectroscopy, Galactic Clusters, Radio Galaxies, Sky Surveys (Astronomy), Active Galactic Nuclei, Luminosity, Radio Spectra, Visible Spectrum

Scientific paper

The authors present radio and optical observations of three radio sources, 0211-479, 0214-480 and 0215-483, which are separated in the sky by less than 45 arcmin and which show parallel ridge-like structures. Low-dispersion spectroscopic data obtained with the Anglo-Australian telescope give redshifts of 0.2195, 0.0641 and 0.0716 respectively. The authors conclude that, although the probability of three such sources occurring in close projection is very low, the differences in redshift indicate a separation of about 500 Mpc and make a physical association unlikely.

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