A Powerful Radio Halo in the Hottest Known Cluster of Galaxies 1E 0657−56
Open Access
- 1 December 2000
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 544 (2) , 686-701
- https://doi.org/10.1086/317223
Abstract
We report the detection of a diffuse radio halo source in the hottest known cluster of galaxies 1E 0657-56 (RX J0658-5557). The radio halo has a morphology similar to the X-ray emission from the hot intracluster medium. The presence of a luminous radio halo in such a hot cluster is further evidence for a steep correlation between the radio halo power and the X-ray temperature. We favor models for the origin of radio halo sources involving a direct connection between the X-ray emitting thermal particles and the radio emitting relativistic particles.Keywords
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