Physics
Scientific paper
Feb 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002phpl....9..727d&link_type=abstract
Physics of Plasmas, Volume 9, Issue 2, pp. 727-728 (2002).
Physics
8
Laboratory Studies Of Space- And Astrophysical-Plasma Processes, Magnetohydrodynamic And Fluid Equation, Shock Waves And Discontinuities, Magnetohydrodynamics And Plasmas, Macroinstabilities, Supernova Remnants, Supernova Remnants
Scientific paper
This recent paper reports some real advances in experimental technique, but is misleading or incorrect in several places. First, the design assumes without discussion that the magnetic field will completely penetrate the plasma, but this is not likely. Second, when the magnetic field is present the surfaces of the converging plasmas will be Rayleigh-Taylor unstable. Third, any shocks produced in experiments like those reported may be collisionless but have no relevance to shocks in supernova remnants. Fourth, the experiment is not a meaningful hydrodynamic simulation of a supernova remnant. Finally, the hydrodynamic simulation results reported are also in error, leading to incorrect values for some scaling parameters.
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