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

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

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 possible 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.

Original languageEnglish (US)
Pages (from-to)2896-2909
Number of pages14
JournalMonthly Notices of the Royal Astronomical Society
Volume464
Issue number3
DOIs
StatePublished - Jan 1 2017
Externally publishedYes

Bibliographical note

Funding Information:
REAC wishes to thank Norbert Werner and Irina Zhuravleva for interesting discussions. Support for this work was provided by NASA through grant number GO2-13143X. SWA acknowledges support from the US Department of Energy under contract number DEAC02-76SF00515. DA acknowledges support from the German Federal Ministry of Economics and Technology (BMWi) provided through DLR under project 50 OR 1210. This research has made use of the NASA/IPAC Extragalactic Database (NED) that is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.

Funding Information:
REAC wishes to thank Norbert Werner and Irina Zhuravleva for interesting discussions. Support for this work was provided by NASA through grant number GO2-13143X. SWA acknowledges support from the US Department of Energy under contract number DE-AC02-76SF00515. DA acknowledges support from the German Federal Ministry of Economics and Technology (BMWi) provided through DLR under project 50 OR 1210. This research has made use of the NASA/IPAC Extragalactic Database (NED) that is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.

Publisher Copyright:
© 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Keywords

  • Galaxies: clusters: individual: A2219
  • Galaxies: clusters: intracluster medium

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