Photography of 3CR radio source fields - Three new optical identifications

Details Photography of 3CR radio source fields - Three new optical identifications Photography of 3CR radio source fields - Three new optical identifications

Dec 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...210..627s&link_type=abstract

Astrophysical Journal, vol. 210, Dec. 15, 1976, pt. 1, p. 627-630

Astronomy and Astrophysics

Astronomy

20

Astronomical Photography, Radio Galaxies, Radio Sources (Astronomy), Galactic Evolution, Identifying, Luminous Intensity, Position Errors

Scientific paper

Deep red photographs have been taken of the fields of five previously unidentified radio sources from the Revised 3C Radio Catalog. Identifications with very faint galaxies are suggested for 3C 13, 3C 238, and 3C 427.1. The candidate identifications for 3C 238 and 3C 427.1 are an order of magnitude fainter than optical objects detected in previous identification attempts. No identification has been found for 3C 68.2, suggesting that the optical object associated with this radio source is fainter than the present limit, which is about equal to 21.5 magnitudes for extended objects. The interesting case of 3C 105, a very extended double which may be associated with an 18.5 magnitude galaxy, is also discussed.

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