Radio and X-ray galaxies in Abell 566

Details Radio and X-ray galaxies in Abell 566 Radio and X-ray galaxies in Abell 566

Jul 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...111..299h&link_type=abstract

Astronomy and Astrophysics, vol. 111, no. 2, July 1982, p. 299-305.

Astronomy and Astrophysics

Astrophysics

20

Galactic Clusters, Interstellar Gas, Radio Galaxies, Seyfert Galaxies, X Ray Sources, Astronomical Maps, Gas Temperature, Magnetic Fields, Relativistic Particles

Scientific paper

Radio and X-ray observations are presented for Abell 566. The X-ray emission indicates a relatively cool gas (2 keV) with a fairly wide distribution (600 kpc core radius). Two enhancements in the smooth X-ray distribution are tentatively associated with 2 radio galaxies which are cluster members. One of these has a very steep radio spectrum. The pressure in this source from relativistic particles and the magnetic field is comparable to the thermal pressure of the cluster gas. Thus, the steep radio spectrum may be explained by thermal confinement and a turnoff of particle injection about 100-million years ago. A second X-ray source 17 arcmin from the field center, appears to be associated with a distant Seyfert. It is probably an example of the newly isolated class of Seyferts which have variable, soft X-ray emission.

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