Coma-type radio halos and cluster X-ray morphology

Details Coma-type radio halos and cluster X-ray morphology Coma-type radio halos and cluster X-ray morphology

Sep 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982aj.....87.1266v&link_type=abstract

Astronomical Journal, vol. 87, Sept. 1982, p. 1266-1269.

Astronomy and Astrophysics

Astronomy

47

Cosmic Rays, Galactic Clusters, Galactic Structure, Gas Temperature, Radio Galaxies, X Ray Spectra, Astronomical Spectroscopy, Cosmic Gases, Halos, Radiant Heating, Radio Astronomy, Temperature Distribution, Velocity Distribution, X Ray Astronomy

Scientific paper

It is pointed out that there seems to be a characteristic X-ray morphology for clusters with Coma-type radio halos. This correlation may be the first evidence that the conditions conducive to formation of a radio halo influence or are influenced by the thermal gas distribution. It is suggested that heating of the intracluster gas by the cosmic rays that power the radio halo may be the source of the correlation. The anomalous gas temperature of Coma may be the result of this process. Future observations of cluster temperatures and velocity dispersions should provide a test of the cosmic-ray heating hypothesis

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