Stochastic re-acceleration in the ICM

Details Stochastic re-acceleration in the ICM Stochastic re-acceleration in the ICM

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007hia....14...97b&link_type=abstract

Highlights of Astronomy, Volume 14, p. 97-97

Astronomy and Astrophysics

Astronomy

Acceleration Of Particles, Turbulence, Galaxies: Clusters: General

Scientific paper

Here we suggest that efficient stochastic particle re acceleration in galaxy clusters may be driven by compressible modes. The damping of these modes is severely dominated by the TTD resonance with thermal electrons and protons in the ICM. However, a small energy flux of these modes may be channelled into particle re-acceleration and this gives re-acceleration times of the order of ˜ 108 yrs, sufficient to mantain GeV radiating electrons in the ICM.

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