Physics – Fluid Dynamics
Scientific paper
Nov 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aps..dfd.dd004r&link_type=abstract
American Physical Society, 54th Annual Meeting of the Division of Fluid Dynamics November 18 - 20, 2001 San Diego, California Me
Physics
Fluid Dynamics
Scientific paper
Using hydrodynamic simulations, we produce models demonstrating substantial perturbation in the sphericity of forward shocks under high compression ratios for the driven waves of supernova remnants (SNRs). High shock compression follows with the efficient particle acceleration of cosmic rays. Under high compression ratios, very distinct forward shock oscillations are observed whose amplitudes can be closely linked with variations in γ, n, and s. Despite prevailing assumption, the separation of the forward and reverse shocks in supernovae is not the only significant factor affecting forward shock perturbation, which can vary three to four orders of magnitude in statistical variance by changing s or n alone. Using information on how these factors affect forward shock perturbation, the research points toward methods of computing the compression ratio using observable, structural information on forward shock propagation.
Blondin John
Robertson Michael
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