A series of shocks and edges in Abell 2219

R. E. A. Canning; S. W. Allen; D. E. Applegate; P. L. Kelly; A. von der Linden; A. Mantz; E. Million; R. G. Morris; H. R. Russell

arXiv · 1505.05790

A series of shocks and edges in Abell 2219

R. E. A. Canning·S. W. Allen·D. E. Applegate·P. L. Kelly·A. von der Linden·A. Mantz·E. Million·R. G. Morris·H. R. Russell

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Abstract

We present deep, 170 ks, Chandra X-ray observations of Abell 2219 (z=0.23) one of the hottest and most X-ray luminous clusters known, and which is experiencing a major merger event. We discover a 'horseshoe' of high temperature gas surrounding the ram-pressure-stripped, bright, hot, X-ray cores. We confirm an X-ray shock front located north-west of the X-ray centroid and along the projected merger axis. We also find a second shock front to the south-east of the X-ray centroid making this only the second cluster where both the shock and reverse shock are confirmed with X-ray temperature measurements. We also present evidence for a sloshing cold front in the 'remnant tail' of one of the sub-cluster cores. The cold front and north-west shock front geometrically bound the radio halo and appear to be directly influencing the radio properties of the cluster.

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R. E. A. Canning, S. W. Allen, D. E. Applegate, P. L. Kelly, A. von der Linden, A. Mantz, E. Million, R. G. Morris, H. R. Russell. 2015-05-21. A series of shocks and edges in Abell 2219. https://arxiv.org/abs/1505.05790

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