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Evolution of Supernova Remnants with Cosmic Rays and Radiative Cooling

Published online by Cambridge University Press:  12 April 2016

E. A. Dorfi
E. A. Dorfi*
Affiliation:
Institut für Astronomie, Universität Wien, Türkenschanzstrasse 17, A-1180 Wien, Austria

Abstract

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Recent numerical models for SNR evolution are presented, including first-order Fermi acceleration with injection of suprathermal particles at the shock wave, heating due to dissipation of Alfvén waves in the precursor region and radiative cooling of the thermal plasma. The X-ray fluxes obtained from these SNR models show significant differences depending on the acceleration efficiency of cosmic rays. γ-ray fluxes are calculated originating from π0-decay of pions generated by collisions of the high-energy particles with the thermal plasma. Cooling of the thermal plasma and dissipation of Alfvén waves in the precursor are important to determine the final amount of the explosion energy ESN which is transferred into cosmic rays.

Subject headings: acceleration of particles — cosmic rays — gamma rays: theory — shock waves — supernova remnants

Type
Poster Papers
Information
International Astronomical Union Colloquium , Volume 142: Particle Acceleration Phenomena in Astrophysical Plasmas , 1994 , pp. 841 - 844
Copyright
Copyright © The American Astronomical Society 1994

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