Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apjs...90..841d&link_type=abstract
Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 90, no. 2, p. 841-844
Astronomy and Astrophysics
Astrophysics
6
Cosmic Rays, High Energy Interactions, Particle Acceleration, Stellar Evolution, Supernova Remnants, Thermal Plasmas, Cooling Flows (Astrophysics), Magnetohydrodynamic Waves, Pions, Plasma Heating, Radiative Heat Transfer, Shock Fronts, Shock Waves
Scientific paper
Recent numerical models for Supernova Remnant (SNR) evolution are presented, including first-order Fermi acceleration with injection of suprathermal particles at the shock wave, heating due to dissipation of Alfven 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 gamma-ray fluxes are calculated originating from pi0-decay of pions generated by collisions of the high-energy particles with the thermal plasma. Cooling of the thermal plasma and dissipation of Alfven waves in the precursor are important to determine the final amount of the explosion energy ESN which is transferred into cosmic rays.
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