Explosive energy release in magnetic shocks

Details Explosive energy release in magnetic shocks Explosive energy release in magnetic shocks

Mar 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002phrve..65c5401v&link_type=abstract

Physical Review E, vol. 65, Issue 3, id. 035401

Physics

Shock Waves And Discontinuities, Plasma Production And Heating By Shock Waves And Compression, Neutron Stars

Scientific paper

We show that a magnetic shock whose initial density and/or magnetic perturbation exceeds the Hugoniot limit may lead to substantial and rapid energy release in low β plasmas (such as occur in the magnetospheres of neutron stars). We illustrate this effect for a fast Magnetohydrodynamic perturbation, as well as for large density perturbations which can be naturally created in low β plasmas. Using the Riemann solution and simulations, we show that slow modes of finite magnitudes and Alfvénic perturbations can generate strong density perturbations. These perturbations develop into shocks, resulting in efficient energy release.

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