A Powerful Radio Halo in the Hottest Known Cluster of Galaxies 1E 0657−56 | Zendy

Haida Liang | Zendy; R. W. Hunstead | Zendy; M. Birkinshaw | Zendy; P. Andreani | Zendy

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A Powerful Radio Halo in the Hottest Known Cluster of Galaxies 1E 0657−56

Author(s) -

Haida Liang,

R. W. Hunstead,

M. Birkinshaw,

P. Andreani

Publication year - 2000

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/317223

Subject(s) - radio halo , halo , physics , astrophysics , intracluster medium , cluster (spacecraft) , galaxy cluster , radio galaxy , astronomy , galaxy , computer science , programming language

We report the detection of a diffuse radio halo source in the hottest knowncluster of galaxies 1E0657-56 (RXJ0658-5557). The radio halo has a morphologysimilar to the X-ray emission from the hot intracluster medium. The presence ofa luminous radio halo in such a hot cluster is further evidence for a steepcorrelation between the radio halo power and the X-ray temperature. We favourmodels for the origin of radio halo sources involving a direct connectionbetween the X-ray emitting thermal particles and the radio emittingrelativistic particles.Comment: 21 pages of text, 9 figures, to appear in Ap

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