VLA OBSERVATIONS OF DRAGNS IN THE 3CR AND 6C B2 2-JY SURVEYS/

Citation
Jdb. Lawgreen et al., VLA OBSERVATIONS OF DRAGNS IN THE 3CR AND 6C B2 2-JY SURVEYS/, Monthly Notices of the Royal Astronomical Society, 274(3), 1995, pp. 939-963
Citations number
65
Categorie Soggetti
Astronomy & Astrophysics
ISSN journal
00358711
Volume
274
Issue
3
Year of publication
1995
Pages
939 - 963
Database
ISI
SICI code
0035-8711(1995)274:3<939:VOODIT>2.0.ZU;2-I
Abstract
We present total intensity radio images of a collection of 48 radio ga laxies and quasars, drawn from a combined sample of the 3CR catalogue and the overlapping 6C and B2 catalogues. The 6C and B2 samples are se lected at a flux density level at which the differential source counts exceed by the greatest amount the counts predicted for a non-evolving Friedmann cosmology. The new observations presented here complete a s et of high-quality radio data for these samples: in conjunction with n ew optical/infrared data they should provide new insight into the cosm ological evolution of this source population. The sources were observe d with the VLA, at one or more of the following frequencies: 1.4 GHz, 5 GHz, 8.4 GHz. Basic source parameters are derived from each image, I mages of individual sources are briefly discussed. The sources are cla ssified morphologically according to their degree of core dominance R. The distributions of morphologies for 3CR and '6C/B2' sources are com pared and discussed.