NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-17 T15:38:53 PDT
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For refcode 1979MNRAS.186..117G:
Retrieve 71 NED objects in this reference.
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NED Abstract

Copyright by Royal Astronomical Society. 1979MNRAS.186..117G The dependence of radio galaxy luminosity and size on cluster membership Guindon, B. Abstract. The dependence of radio luminosity and source size on cluster membership is considered for a sample of 71 double and triple radio sources. Two methods are employed for cluster classification; one bases on the Abell and Zwicky catalogs and the other directly on the number of galaxies in the neighbohood of each source. The latter approach has the advantage of being relatively free of distance-dependent selection effects as well as being sensitive to source placement within a cluster and to subclustering effects. The incompletenesses in published catalogs of cclusters, in particular the Zwicky catalogs, introduce significant selection effects that preclude their use as the sole means of determining the cluster status of sources. The following conclusions are reached from comparisons of sources grouped according to the numbers of galaxies in their neighborhoods: (a) Although the majority of high- and low-count sources exhibit sizes which are similar, there is a significant absence of very large sources (i.e.> than 600 kpc) in regions of high galactic density. (b) There is no significant difference in luminosity between high- and low-count sources.
Retrieve 71 NED objects in this reference.
Please click here for ADS abstract

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