Physics
Scientific paper
Sep 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009cfdd.confe.216z&link_type=abstract
Chandra's First Decade of Discovery, Proceedings of the conference held 22-25 September, 2009 in Boston, MA. Edited by Scott Wo
Physics
Clusters Of Galaxies
Scientific paper
One of the earliest discoveries resulting from observations of clusters of galaxies with Chandra was the existence of ``cold fronts'' in the hot intracluster medium. These features appear as sharp discontinuities in the X-ray surface brightness where the spectral temperature is measured to be colder on the brighter (and therefore denser) side of the front. The presence of cold fronts in the cores of relaxed galaxy clusters suggests the cool gas is sloshing back and forth in the cluster potential minimum. We present simulations where such sloshing is initiated by gravitational disturbances from passing subclusters. We show how the resulting sloshing cold fronts help to place constraints on the physics of the intracluster medium and how sloshing may serve as an additional form of feedback to offset cooling in cluster cores.
Markevitch Maxim
ZuHone John
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