4C radio galaxies - Structures and optical identifications

Abstract

view Abstract Citations (24) References (56) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS 4C radio galaxies: structures and optical identifications. Rudnick, L. ; Adams, M. T. Abstract A large sample of 4C sources between 30 and 40 deg declination has been observed at 2695 and 8085 MHz with the NRAO interferometer. The results of those observations, with further information from the NRAO 91-m telescope, are presented in the form of contour maps and visibility models. The sources were chosen because of their proposed identification with galaxies not in rich clusters. Revised identifications are presented for 13 sources along with 19 sources now classified as empty fields. Several of the new identifications are from deep image-tube plates from the Steward 90-in. telescope. A number of these sources are associated with the brightest galaxies in distant clusters and are typically small in linear extent, relaxed, and highly distorted. Among the low-luminosity sources, relaxed or distorted structures are found about 2/3 of time, as is true for cluster radio galaxies. However, until the effects of the local environment are well understood, the effects of luminosity on radio-source morphology still cannot be isolated. Publication: The Astronomical Journal Pub Date: April 1979 DOI: 10.1086/112438 Bibcode: 1979AJ.....84..437R Keywords: Galactic Clusters; Galactic Structure; Radiant Flux Density; Radio Galaxies; Astronomical Maps; Astronomical Photometry; Graphs (Charts); Interferometers; Luminosity; Tables (Data); Visibility; Astronomy; Radio Galaxies:Contour Maps; Radio Galaxies:Optical Identifications full text sources ADS | data products SIMBAD (67)