Hot-spots of radio sources in clusters of galaxies

Details Hot-spots of radio sources in clusters of galaxies Hot-spots of radio sources in clusters of galaxies

Apr 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979mnras.187...95s&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 187, Apr. 1979, p. 95-99.

Astronomy and Astrophysics

Astronomy

Extragalactic Radio Sources, Galactic Clusters, Brightness Temperature, Scintillation, Spatial Distribution

Scientific paper

A sample of extragalactic double radio sources is examined to test for a correlation between the prominence of compact hot-spots located at their outer edges and membership of clusters of galaxies. To minimize the effects of incompleteness in published catalogues of clusters, cluster classification is based on the number of galaxies in the neighborhood of each source. After eliminating possible selection effects, it is found that sources in regions of high galactic density tend to have less prominent hot-spots. It is argued that the result is consistent with the 'continuous-flow' models of radio sources, but poses problems for the gravitational slingshot model.

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