On the distribution of radio sources in rich galaxy clusters

Details On the distribution of radio sources in rich galaxy clusters On the distribution of radio sources in rich galaxy clusters

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991mnras.249p..28d&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 249, April 1, 1991, p. 28P-30P.

Statistics

Computation

5

Density Distribution, Galactic Clusters, Globular Clusters, Radio Sources (Astronomy), Spiral Galaxies, Astrodynamics, Computational Astrophysics, Stellar Luminosity

Scientific paper

The radial surface density distribution of Molonglo radio sources in rich southern Abell clusters reported by Robertson and Roach (1980) is shown to follow very precisely over a three dex range the r exp 1/4 law with an effective radius of Re = 100 kpc and an effective surface density of 0.333 radio source/sq Mpc. There is no need to postulate a two-component distribution. Comparison with the known effective radii of a few rich northern clusters suggests that the radio source distribution is much more concentrated to the cluster centers than the radio-quiet members. In any case, this is one more example to the validity of an empirical formula applicable to a large class of objects, all resulting presumably from the collapse of a system of collisionless 'particles'.

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