Abell 2443: An Extreme Relic as a Merger Signpost?

Details Abell 2443: An Extreme Relic as a Merger Signpost? Abell 2443: An Extreme Relic as a Merger Signpost?

Sep 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010cxo..prop.3028c&link_type=abstract

Chandra proposal ID #12800531

Physics

Scientific paper

Our low frequency radio observations of Abell 2443 show the first strong evidence of merger activity, including the discovery of a (rare) ultra-steep spectrum relic. We propose to use the sensitivity and resolution of Chandra to confirm and characterize the merger and examine its relation to the radio relic. The detailed ICM morphology will provide insight into the merger dynamics. The confirmation and study of new objects of this class can help establish correlations between the radio properties and the cluster dynamical state, and discriminate among the proposed theoretical models of their origins. Since the radio relic has an unusually steep spectrum, it may be particularly useful in probing the physical properties of the relation between the merger and relic formation.

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