NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-22 T09:49:32 PDT
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For refcode 1999MNRAS.310..223B:
Retrieve 178 NED objects in this reference.
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NED Abstract

Copyright by Royal Astronomical Society. 1999MNRAS.310..223B A 98 per cent spectroscopically complete sample of the most powerful equatorial radio sources at 408 MHz P. N. Best, H. J. A. Rottgering and M. D. Lehnert Accepted 1999 July 2. Received 1999 June 23; in original form 1999 April 7 ABSTRACT A new sample of very powerful radio galaxies is defined from the Molonglo Reference Catalogue, according to the criteria S_408 MHz_ > 5 Jy, -30^deg^ <= {delta} <= 10^deg^ and |b| >= 10^deg^. The sample is selected to have similar properties to the northern 3CR revised sample, and to be visible to a combination of existing northern telescopes such as the Very Large Array radio interferometer and large southern hemisphere telescope facilities. The sample contains 178 sources, of which spectroscopic redshifts are available in the literature for 128. For the remaining 50 sources, new radio imaging, optical imaging and spectroscopic observations are presented to identify the host galaxies and determine their redshifts. With these new observations the total sample is 100 per cent optically identified and redshifts are available for 174 (98 per cent) of the sources. The sample consists of one starburst galaxy, one Seyfert galaxy, 127 radio galaxies and 49 quasars. Basic properties of the sample, such as the distributions of the quasar and radio-galaxy populations in redshift and their locations on the radio power versus linear size (P-D) diagram, show no significant differences from the revised 3CR sample. The equatorial location and the high spectroscopic completeness of this sample make it a valuable resource for detailed studies of the nature and environments of these important objects with the new generation of southern hemisphere telescopes. Keywords: catalogues - galaxies: active - galaxies: distances and redshifts - quasars: emission lines - radio continuum: galaxies
Retrieve 178 NED objects in this reference.
Please click here for ADS abstract

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