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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: [email protected]
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
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Abstract

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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 

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