Type |
Journal Article |
Names |
S. Heinz, E. Churazov |
Publication |
The Astrophysical Journal Letters |
Volume |
634 |
Issue |
2 |
Pages |
L141-L144 |
Date |
December 1, 2005 |
URL |
http://adsabs.harvard.edu/abs/2005ApJ...634L.141H |
Library Catalog |
NASA ADS |
Abstract |
Using hydrodynamic simulations and a technique to extract the rotational
component of the velocity field, we show how bubbles of relativistic gas
inflated by AGN jets in galaxy clusters act as a catalyst, transforming
the energy carried by sound and shock waves into heat. The energy is
stored in a vortex field around the bubbles, which can subsequently be
dissipated. The efficiency of this process is set mainly by the fraction
of the cluster volume filled by (sub-) kiloparsec-scale filaments and
bubbles of relativistic plasma. |
Tags |
GALAXIES: CLUSTERS: GENERAL, ISM: bubbles, Instabilities, Methods: Numerical, hydrodynamics, shock waves |