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New radio maps and optical identifications of distant 3 CR galaxies

Strom, R. G. and Riley, J. M. and Spinrad, H. and van Breugel, W. J. M. and Djorgovski, S. and Liebert, J. and McCarthy, P. J. (1990) New radio maps and optical identifications of distant 3 CR galaxies. Astronomy and Astrophysics, 227 (1). pp. 19-29. ISSN 0004-6361.

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We have made radio observations with both high angular resolution and sensitivity at 6 and 11 cm of thirteen 3 CR radio sources. In eleven of these we have detected compact or fairly compact central components enabling us to pinpoint the location of the optical object and to confirm some previously suggested identifications. We have obtained optical images of 3C114, 3C277, and 3C437, which were previously unidentified, and have measured redshifts for 3C114, 3C272, 3C277, and 3C437. Optical information on the remaining sources has been or is being published elsewhere. All of the sources are associated with galaxies, with redshifts ranging from 0.165 to nearly 1.8. The newly identified sources have redshifts greater than 0.6. All the sources display some form of double structure, about half of them being symmetrical, classical doubles. It is pointed out that the higher redshift (z > 0.8) sources in this group have relatively weak bridges, although the high redshift sources with extended Lyα display strong bridge emission. In one case (3C114) we have evidence that the flux density of the central radio core varies.

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Djorgovski, S.0000-0002-0603-3087
Additional Information:© 1990 European Southern Observatory. Provided by the NASA Astrophysics Data System. Received March 3, accepted April 25, 1989. Based in part on data obtained at Lick Observatory, University of California, and the Multi Mirror Telescope Observatory, a joint facility of the Smithsonian Institution and University of Arizona. The WSRT is operated by the Netherlands Foundation for Research in Astronomy with the financial support of the Netherlands Organisation for Scientific Research (NWO). Kitt Peak National Observatory is financially supported by the U.S. National Science Foundation. The UC Berkeley research on faint galaxies is supported through NSF grant 8706227 (to H.S.). S.D. acknowledges partial support from the California Institute of Technology and from Harvard University.
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Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)UNSPECIFIED
Harvard UniversityUNSPECIFIED
Subject Keywords:radio galaxies - redshifts of galaxies
Issue or Number:1
Record Number:CaltechAUTHORS:20190814-103242934
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:97887
Deposited By: Tony Diaz
Deposited On:15 Aug 2019 17:55
Last Modified:03 Oct 2019 21:36

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