Simulations of Hot Bubbles in the ICM

Details Simulations of Hot Bubbles in the ICM Simulations of Hot Bubbles in the ICM

2004-09-15

arxiv.org/abs/astro-ph/0409355v1

Mod.Phys.Lett. A19 (2004) 2317-2330

Astronomy and Astrophysics

Astrophysics

13 pages, no figures. Accepted for publication in Modern Physics Letters A

Scientific paper

10.1142/S0217732304015610

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 explain the absence of a cooled gas component in clusters with a cooling flow. This scenario is explored using numerical simulations.

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