Computer Science
Scientific paper
Sep 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984natur.311..358m&link_type=abstract
Nature (ISSN 0028-0836), vol. 311, Sept. 27, 1984, p. 358, 359.
Computer Science
11
Bremsstrahlung, Halos, Interstellar Matter, Supernova Remnants, Synchrotron Radiation, X Rays, Cosmic Rays, Mach Number, Magnetohydrodynamic Waves
Scientific paper
Recent observations of the Cas A supernova remnant have shown X-ray emissions not only from the interior, but also from a fainter "halo" extending beyond what is normally regarded as the outer boundary, or shock front. The authors suggest that this may be due to the diffusion of energetic, charged particles out of the remnant giving rise to precursor structure of the type predicted by the theory of diffusive shock acceleration. If this is the case we are seeing thermal emission from ambient gas heated by compression and wave dissipation.
Aschenbach Bernd
Drury Luke O'C.
Morfill Gregor E.
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