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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
  • Stanford University
  • SLAC National Accelerator Laboratory
  • University of Bonn
  • University of California at Berkeley
  • The University of Chicago
  • Johns Hopkins University Applied Physics Laboratory
  • University of Cambridge

Research output: Contribution to journalArticlepeer-review

17 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
Pages (from-to)2896-2909
Number of pages14
JournalMonthly Notices of the Royal Astronomical Society
Volume464
Issue number3
DOIs
StatePublished - Jan 1 2017

Keywords

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

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