Abstract
view Abstract Citations (98) References (16) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Cosmic-ray production in the Cassiopeia A supernova remnant. Scott, J. S. ; Chevalier, R. A. Abstract A model for the production of high-energy particles in the supernova remnant Cas A is considered. The ordered expansion of the fast moving knots produces turbulent cells in the ambient interstellar medium. The turbulent cells act as magnetic scattering centers, and charged particles are accelerated to large energies by the second-order Fermi mechanism. Model predictions are shown to be consistent with the observed shape and time dependence of the radio spectrum, and with the scale size of magnetic field irregularities. Assuming a galactic supernova rate of one per 50 years, this mechanism is capable of producing the observed galactic cosmic-ray flux and spectrum below 10,000 TeV per nucleon. Several observed features of galactic cosmic rays are shown to be consistent with model predictions. Publication: The Astrophysical Journal Pub Date: April 1975 DOI: 10.1086/181763 Bibcode: 1975ApJ...197L...5S Keywords: Cassiopeia A; Cosmic Rays; Particle Production; Radiation Sources; Supernova Remnants; Astronomical Models; Galactic Radiation; Interstellar Matter; Particle Acceleration; Particle Energy; Turbulent Flow; Space Radiation full text sources ADS |
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