408 MHz observations of clusters of galaxies. I - Halo sources in the Coma-A 1367 supercluster

Details 408 MHz observations of clusters of galaxies. I - Halo sources in the Coma-A 1367 supercluster 408 MHz observations of clusters of galaxies. I - Halo sources in the Coma-A 1367 supercluster

Jul 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a...100..323b&link_type=abstract

Astronomy and Astrophysics, vol. 100, no. 2, July 1981, p. 323-325.

Astronomy and Astrophysics

Astronomy

27

Galactic Clusters, Halos, Radio Astronomy, Radio Galaxies, Very High Frequencies, Radio Emission, Radio Telescopes

Scientific paper

Three extended halo type radio sources are detected in the Coma-A 1367 superclusters as a result of 408 MHz observations made with the Bologna Northern Cross Radio telescope. The Coma-C is detected and the uncertain estimates of the source flux density are discussed. A structure with diffuse radio emissions from intergalactic space is detected in the Coma cluster located next to the radio galaxy 3C 277.3 (Coma-A). Located near the core of A 1367, the third halo source has no obvious optical counterpart to the diffuse emission, and observations are found to be in agreement with previous observations. The implications of the existence of halo type radio sources in clusters of galaxies are also discussed, including questions raised on the origin of electrons and magnetic fields responsible for the radio emission.

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