title: Stormy weather in galaxy clusters
abstract: Recent x-ray, optical, and radio observations coupled with particle and gas dynamics numerical simulations reveal an unexpectedly complex environment within clusters of galaxies, driven by ongoing accretion of matter from large-scale supercluster filaments. Mergers between clusters and continuous infall of dark matter and baryons from the cluster periphery produce long-lived "stormy weather" within the gaseous cluster atmosphere-shocks, turbulence, and winds of more than 1000 kilometers per second. This weather may be responsible for shaping a rich variety of extended radio sources, which in turn act as "barometers" and "anemometers" of cluster weather.
authors.affiliation: The author is at the Office of Research, 205 Jesse Hall, and Department of Physics and Astronomy, University of Missouri, Columbia, MO 65211, USA. E-mail: burns@research.missouri.edu.
authors.initials: JO
authors.lastname: Burns