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Observational Signatures of Particle Acceleration in Supernova Remnants |
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| Authors: | E A Helder J Vink A M Bykov Y Ohira J C Raymond R Terrier |
| Institution: | 1. Department of Astronomy and Astrophysics, 525 Davey Laboratory, The Pennsylvania State University, University Park, PA, 16802, USA 2. Astronomical Institute Anton Pannekoek, Universiteit van Amsterdam, Postbus 94249, 1090 GE, Amsterdam, The Netherlands 3. Ioffe Institute for Physics and Technology, St. Petersburg State Politechnical University, 194021, St. Petersburg, Russia 4. Theory Center, Institute of Particle and Nuclear Studies, KEK (High Energy Accelerator Research Organization), 1-1 Oho, Tsukuba, 305-0801, Japan 5. Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA, 02138, USA 6. Astroparticule et Cosmologie, Universitè Paris7/CNRS/CEA, Batiment Condorcet, 75013, Paris, France |
| Abstract: | We evaluate the current status of supernova remnants as the sources of Galactic cosmic rays. We summarize observations of supernova remnants, covering the whole electromagnetic spectrum and describe what these observations tell us about the acceleration processes by high Mach number shock fronts. We discuss the shock modification by cosmic rays, the shape and maximum energy of the cosmic-ray spectrum and the total energy budget of cosmic rays in and surrounding supernova remnants. Additionally, we discuss problems with supernova remnants as main sources of Galactic cosmic rays, as well as alternative sources. |
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