On the connection between giant radio halos and cluster mergers

Details On the connection between giant radio halos and cluster mergers On the connection between giant radio halos and cluster mergers

2010-08-21

arxiv.org/abs/1008.3624v1

The Astrophysical Journal Letters, Volume 721, Issue 2, pp. L82-L85 (2010)

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

5 pages, 1 figure, ApJ Letter in press

Scientific paper

10.1088/2041-8205/721/2/L82

The frequently observed association between giant radio halos and merging galaxy clusters has driven present theoretical models of non-thermal emission from galaxy clusters, which are based on the idea that the energy dissipated during cluster-cluster mergers could power the formation of radio halos. To quantitatively test the merger-halo connection we present the first statistical study based on deep radio data and X-ray observations of a complete X-ray selected sample of galaxy clusters with X-ray luminosity > 5x 10^44 erg/s and redshift 0.2

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