Hostname: page-component-7bb8b95d7b-dvmhs Total loading time: 0 Render date: 2024-09-25T19:58:47.532Z Has data issue: false hasContentIssue false
  • English
  • Français

Acceleration of particles up to PeV energies at the galactic centre

Published online by Cambridge University Press:  23 June 2017

Stefano Gabici ,
Felix A. Aharonian ,
Emmanuel Moulin  and
Aion Viana
Stefano Gabici
Affiliation:
APC, Univ Paris Diderot, CNRS/IN2P3, CEA/Irfu, Obs de Paris, Sorbonne Paris Cité, France – email: gabici@apc.in2p3.fr
Felix A. Aharonian
Affiliation:
Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, Dublin 2, Ireland Max-Planck-Institut für Kernphysik, Postfach 103980, D-69029 Heidelberg, Germany
Emmanuel Moulin
Affiliation:
DRF/Irfu, Service de Physique des Particules, CEA Saclay, F-91191 Gif-Sur-Yvette Cedex, France
Aion Viana
Affiliation:
Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, Dublin 2, Ireland
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Recent very high energy observations of the galactic centre region performed by H.E.S.S. revealed the presence of a powerful PeVatron. This is the first of such objects detected, and its most plausible counterpart seems to be associated to Sgr A*, the supermassive black hole in the centre of our galaxy. The implications of this discovery will be discussed, in particular in the context of the problem of the origin of galactic cosmic rays.

Keywords

Gamma rays: observationsGamma rays: theoryAcceleration of particles
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S324: New Frontiers in Black Hole Astrophysics , September 2016 , pp. 317 - 321
Copyright
Copyright © International Astronomical Union 2017 

References

Aharonian, F. A. Very high energy cosmic gamma radiation : a crucial window on the extreme Universe, River Edge, NJ: World Scientific Publishing (2004)CrossRefGoogle Scholar
Aharonian, F., et al. [H. E. S. S. Collaboration], 2009, A&A, 503, 817 Google Scholar
Aharonian, F., et al. [H. E. S. S. Collaboration] 2006, Nature, 439, 695 CrossRefGoogle Scholar
Aharonian, F., et al. [HESS Collaboration], 2004, A&A Lett., 425, L13 Google Scholar
Antoni, T., et al. 2005, Astropart. Phys., 24, 1 Google Scholar
Bartoli, B.,et al.,2015, Phys. Rev. D, 92, 092005 Google Scholar
Bell, A. R., Schure, K. M., Reville, B., & Giacinti, G. 2013, MNRAS, 431, 415 Google Scholar
Cristofari, P., Gabici, S., Casanova, S., Terrier, R., & Parizot, E. 2013, MNRAS, 434, 2748 Google Scholar
Drury, L. O’C. 2012, Astropart. Phys., 39, 52 Google Scholar
Gabici, S. & Aharonian, F. A. 2007, ApJ Lett., 665, L131 Google Scholar
Genzel, R., Eisenhauer, F., & Gillessen, S. 2010, Rev. Mod. Phys., 82, 3121 CrossRefGoogle Scholar
H. E. S. S. Collaboration, 2016, Nature, 531, 476 Google Scholar
Istomin, Y. N. 2014, New Astronomy, 27, 13 Google Scholar
Parizot, E. 2014, Nucl. Phys. Proc. Suppl., 256, 197 CrossRefGoogle Scholar
Strong, A. W., Moskalenko, I. V. & Ptuskin, V. S. 2007 ARNPS, 57, 285 Google Scholar
Taylor, A. M., Gabici, S., & Aharonian, F. A. 2014, Phys. Rev. D, 89, 103003 CrossRefGoogle Scholar
Tsuboi, M., Handa, T., & Ukita, N. 1999, ApJ Supp. 120, 1-39 CrossRefGoogle Scholar
Yang, R., Jones, D. I., & Aharonian, F. 2015, A&A, 580, A90 Google Scholar