期刊
MODERN PHYSICS LETTERS A
卷 19, 期 31, 页码 2317-2329出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0217732304015610
关键词
galaxies; clusters; general; cooling flows; methods; numerical
We review the general properties of the intracluster medium (ICM) in clusters that host a cooling flow, and in particular the effects on the ICM of the injection of hot plasma by a powerful active galactic nucleus (AGN). It is observed that, in some cases, the hot plasma produces cavities in the ICM that finally detach and rise, perhaps buoyantly. The gas dynamics induced by the rising bubbles can help in explaining the absence of a cooled gas component in clusters with a cooling flow. This scenario is explored using numerical simulations.
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