1919 + 742 - A large double radio source

Details 1919 + 742 - A large double radio source 1919 + 742 - A large double radio source

Oct 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...151...43s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 151, no. 1, Oct. 1985, p. 43-46.

Astronomy and Astrophysics

Astrophysics

2

Galactic Structure, Radio Galaxies, Astronomical Maps, Radio Spectra

Scientific paper

A 49-cm map of the source 1919 + 742 (previously catalogued as 4C74.24 and NB74.26) shows it to be a large double. Although the optical identification is unclear, there are several candidate objects near the source centroid which appear to be members of a small group of galaxies. The absence of bright identification candidates argues for a moderately distant, and hence intrinsically large (750 kpc overall size for z = 0.1) object. The spectrum between 80 and 600 MHz is determined, some intrinsic properties are derived, and these are briefly discussed in the context of other large sources.

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