Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978mnras.184..149l&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 184, July 1978, p. 149-157. Research supported by the Alfred P. Sloan F
Astronomy and Astrophysics
Astronomy
13
Astronomical Photography, Astronomical Photometry, Radio Sources (Astronomy), Stellar Magnitude, Photographic Plates, Quasars, Radio Galaxies, Red Shift, Tables (Data)
Scientific paper
Source counts, and estimates of V/V max, are presented for a sample of 3CR radio sources. It is found that over 90% of the sources with a flux density at 178 MHz greater than or equal to 10 Jy can be identified with objects having apparent magnitudes less than or equal to 23. Such a finding leads to the conclusion that strong radio galaxies may evolve with cosmological epoch in a manner similar to that of quasars. Observations were made from 200 in plates, all taken on a single night.
Gunn James E.
Kibblewhite Edward J.
Laing Robert A.
Longair Malcolm S.
Riley Julia M.
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