RATAN-600 RC radio sources (Parijskij+ 1996)

Details RATAN-600 RC radio sources (Parijskij+ 1996) RATAN-600 RC radio sources (Parijskij+ 1996)

Apr 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999ycatp011004001p&link_type=abstract

VizieR On-line Data Catalog: J/other/BSAO/40.5. Originally published in: 1996BSAO...40....5P

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Radio Sources, Galaxies: Radio, Morphology

Scientific paper

We use the RATAN-600 radio telescope for picking up the most distant objects in the Universe. As a first step, about 100 steep spectrum FRII radio galaxies (SS FRII RG) from the RATAN-600 RC catalog (Parijskij et al., 1991, Cat. 1992A&AS...96..583P) were mapped by the VLA and identified with optical objects down to 24-25 R mag. All the VLA images and all the deep CCD images of the RC SS fields, collected up to now, are given. An updated list of calibrators with the known redshifts of the same SS FRII class RGs was compiled to estimate photometric redshifts, redshifts from angular size - redshift relations and by the radio "standard candle" method. The mean redshift of the RC SS FRII RG list happened to be greater than 2. BVRI photometry was made, and by standard model fittings we estimated "color" redshifts and the ages of stellar systems of the parent gE galaxies in 14 cases. Several objects were found in which active star formation began in the first billion years after the Big Bang. We believe that more than 10000 of such old active galaxies are available on the sky and all of them are in the range of present day optical and radio facilities. (4 data files).

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