53
520
521
523
524
52-1
52-6
41.00
29.35
29.31
29.33
29.27
29.05
03.06.01
03.05.01
03.04.03
2
223
614
6135
SCI004000
SCI005000
The Big Trio programme was aimed to search for distant radio galaxies for the purpose of cosmological research. A selection of sources with steep and ultra-steep spectra was made from the radio sources discovered in a series of surveys by the Cold Experiment, which was carried out on the RATAN-600 radio telescope. The results of the studies of 113 sources in this sample were the optical identification of almost the entire sample, spectral studies of the majority of the objects (70%), spectral redshift determinations for half of them, and the discovery of three unique radio galaxies with redshifts
galaxies: active, high-redshift
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