English

The dynamical intracluster medium: a combined approach of observations and simulations

Cosmology and Nongalactic Astrophysics 2015-05-14 v1

Abstract

Current high resolution observations of galaxy clusters reveal a dynamical intracluster medium (ICM). The wealth of structures includes signatures of interactions between active galactic nuclei (AGN) and the ICM, such as cavities and shocks, as well as signatures of bulk motions, e.g. cold fronts. Aiming at understanding the physics of the ICM, we study individual clusters by both, deep high resolution observations and numerical simulations which include processes suspected to be at work, and aim at reproducing the observed properties. By comparing observations and simulations in detail, we gain deeper insights into cluster properties and processes. Here we present two examples of our approach: the large-scale shock in the Hydra A cluster, and sloshing cold fronts.

Keywords

Cite

@article{arxiv.0909.2660,
  title  = {The dynamical intracluster medium: a combined approach of observations and simulations},
  author = {E. Roediger and M. Brueggen and A. Simionescu and H. Boehringer and S. Heinz},
  journal= {arXiv preprint arXiv:0909.2660},
  year   = {2015}
}

Comments

4 pages, to appear in proceedings of "The Monster's fiery breath" held in Madison, June 2009, eds. S. Heinz and E. Wilcots, version with full resolution pictures at http://www.faculty.iu-bremen.de/eroediger/PAPERS/roediger_e_madison.pdf