Two merging galaxy clusters with very hot shock fronts observed shortly before pericentric passage

  title={Two merging galaxy clusters with very hot shock fronts observed shortly before pericentric passage},
  author={Tatiana F. Lagan'a and G. S. Souza and Rubens E G Machado and R. C. Volert and Paulo A. A. Lopes},
  journal={Monthly Notices of the Royal Astronomical Society},
We present a detailed analysis of two merging clusters, from XMM-\textit{Newton} X-ray archival data: PLCKESZ G036.7+14.9 ($z=0.15$; hereafter G036) and PLCK G292.5+22.0 ($z=0.30$; hereafter G292). We notice that the intracluster medium is heated as a result of the merger, and we find evidence for a merger shock in the region between both subcluster haloes. X-ray observations confirm that the shocks in these systems are among the hottest known in the literature. From the ICM analysis of… 


Chandra observation of two shock fronts in the merging galaxy cluster Abell 2146
We present a new Chandraobservation of the galaxy cluster Abell 2146 which has revealed a complex merging system with a gas structure that is remarkably similar to the Bullet cluster (eg. Markevitch
Chandra and XMM-Newton observations of the merging cluster of galaxies PLCK G036.7+14.9
We present Chandra and XMM-Newton observations of PLCK G036.7+14.9 from the Chandra-Planck Legacy Program. The high resolution X-ray observations reveal two close subclusters, G036N and G036S, which
Simulating the shocks in the dissociative galaxy cluster Abell 1758N
Major mergers between massive clusters have a profound effect in the intracluster gas, which may be used as a probe of the dynamics of structure formation at the high end of the mass function. An
First X-ray evidence for a shock at the Coma relic
The Coma cluster is one of the nearest galaxy clusters, and the first one in which a radio halo and a peripheral relic were discovered. While its halo and the central parts of the intracluster medium
X-Ray View of the Shock Front in the Merging Cluster Abell 3376 with Suzaku
We report on a Suzaku measurement of the shock feature associated with the western radio relic in the merging cluster A3376. The temperature profile is characterized by an almost flat radial shape
Simulations of the merging galaxy cluster Abell 3376
Observed galaxy clusters often exhibit X-ray morphologies suggestive of recent interaction with an infalling subcluster. Abell 3376 is a nearby (z=0.046) massive galaxy cluster whose bullet-shaped
Simulations of the merging cluster of galaxies Cygnus A
The archetype FR-II galaxy Cygnus A lies in a moderately rich cluster about to undergo a major merger. We study the pre-merger Cygnus cluster environment using smoothed particle hydrodynamics
Shocks and cold fronts in galaxy clusters
The merging cluster Abell 1758 revisited: multi-wavelength observations and numerical simulations
Context. Cluster properties can be more distinctly studied in pairs of clusters, where we expect the effects of interactions to be strong. Aims. We here discuss the properties of the double cluster
A series of shocks and edges in Abell 2219
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