COSMIC RAYS IN GALAXY CLUSTERS AND THEIR NONTHERMAL EMISSION

By Gianfranco Brunetti, T. W. Jones. 2014

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Radio observations prove the existence of relativistic particles and magnetic field associated with the intra-cluster-medium (ICM) through the presence of extended synchrotron emission in the form of radio halos and peripheral relics. This observational evidence has fundamental implications on the physics of the ICM. Nonthermal components in galaxy clusters are indeed unique probes of very energetic processes operating within clusters that drain gravitational and electromagnetic energy into cosmic rays (CRs) and magnetic fields. These components strongly affect the (micro-)physical properties of the ICM, including viscosity and electrical conductivities, and have also potential consequences on the evolution of clusters themselves. The nature and properties of CRs in galaxy clusters, including the origin of the observed radio emission on cluster-scales, have triggered an active theoretical debate in the last decade. Only recently we can start addressing some of the most important questions in this field, t...

Subfields: Astronomy and Astrophysics, Instrumentation, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/72148956792bbd2a494d285f605df834be94ded9

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In Astronomy and Astrophysics

  1. M. Brüggen
  2. M. Hardcastle
  3. R. Cassano
  4. Hyesung Kang
  5. R. Weeren
  6. A. Stroe
  7. F. Gasperin
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In Instrumentation

  1. M. Hardcastle
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  3. Hyesung Kang
  4. L. Feretti
  5. P. V. D. Werf
  6. Matthias Hoeft
  7. Michael J. Jarvis
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In Nuclear and High Energy Physics

  1. R. Cassano
  2. Hyesung Kang
  3. M. Brüggen
  4. Matthias Hoeft
  5. R. Weeren
  6. A. Stroe
  7. F. Zandanel
  8. F. Gasperin

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