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30th International Cosmic Ray Conference

3-11 July 2007
Merida, Mexico
Mexico/General timezone
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Contribution Oral

Merida, Mexico - Uxmal + Tulum (Holiday Inn)
OG.2.3
OG 2.3

H.E.S.S. observations of galaxy clusters

Speakers

  • Dr. Wilfried DOMAINKO

Primary authors

Co-authors

  • Wystan BENBOW (Max-Planck-Institut für Kernphysik, Heidelberg, Germany)
  • James, A. HINTON (School of Physics & Astronomy, University of Leeds, UK)
  • Olivier MARTINEAU-HUYNH (Laboratoire de Physique Nucléaire et de Hautes Energies, Universités Paris VI & VII, France)
  • Mathieu DE NAUROIS (Laboratoire de Physique Nucléaire et de Hautes Energies, Universités Paris VI & VII, France)
  • Dalibor NEDBAL (Institute of Particle and Nuclear Physics, Charles University, Prague, Czech Republic)
  • Giovanna PEDALETTI (Landessternwarte, Universität Heidelberg, Germany)
  • Gavin ROWELL (School of Chemistry & Physics, University of Adelaide, Australia)

Files

Abstract content

Clusters of galaxies, the largest gravitationally bound objects in the universe, are expected to contain a significant population of hadronic and leptonic cosmic rays. Potential sources for these particles are merger and accretion shocks, starburst driven galactic winds and radio galaxies. Furthermore, since galaxy clusters confine cosmic ray protons up to energies of at least 1 PeV for a time longer than the Hubble time they act as storehouses and accumulate all the hadronic particles which are accelerated within them. Consequently clusters of galaxies are potential sources of VHE (> 100 GeV) gamma rays. Motivated by these considerations, promising galaxy clusters are observed with the H.E.S.S. experiment as part of an ongoing campaign. Results from this campaign will be reported.

If this papers is presented for a collaboration, please specify the collaboration

H.E.S.S. Collaboration

Reference

Proceedings of the 30th International Cosmic Ray Conference; Rogelio Caballero, Juan Carlos D'Olivo, Gustavo Medina-Tanco, Lukas Nellen, Federico A. Sánchez, José F. Valdés-Galicia (eds.); Universidad Nacional Autónoma de México, Mexico City, Mexico, 2008; Vol. 3 (OG part 2), pages 953-956