Radio emission of nearby clusters of galaxies at 102.5 MHz

Details Radio emission of nearby clusters of galaxies at 102.5 MHz Radio emission of nearby clusters of galaxies at 102.5 MHz

Oct 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980pazh....6..548g&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 6, Sept.-Oct. 1980, p. 548-551.) Soviet Astronomy Letters, vol. 6, Sept.-Oct. 1980, p.

Astronomy and Astrophysics

Astronomy

Galactic Clusters, Galactic Radio Waves, Radio Galaxies, Very High Frequencies, Flux Density, Hubble Constant, Power Spectra, Red Shift

Scientific paper

It is noted that very little information on cluster radio emission is available at frequencies below 400 MHz. Clusters, however, are known to be correlated with radio sources having steep spectra, so that a survey of galaxy clusters at comparatively low frequencies offers considerable interest. Observations of 25 nearby Abell galaxy clusters with the Lebedev aperture-synthesis antenna array at 102.5 MHz are analyzed to show that the radio luminosity of a cluster increases with its richness class R. It is found that for clusters where R is greater than or equal to 1, the luminosity function conforms to a power law with an exponent of -0.85 in the range between 3 x 10 to the 24th and 3 x 10 to the 26th W/Hz.

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