Physics
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsm51c1421c&link_type=abstract
American Geophysical Union, Fall Meeting 2006, abstract #SM51C-1421
Physics
2700 Magnetospheric Physics (6939), 2723 Magnetic Reconnection (7526, 7835), 2731 Magnetosphere: Outer, 2753 Numerical Modeling, 2784 Solar Wind/Magnetosphere Interactions
Scientific paper
Previous MHD (magnetohydrodynamics) simulations predict that the solar wind under conditions necessary to form switch-on shocks will produce a unique bow shock configuration that includes a convex intermediate shock region. While most of these simulations have been carried out with hard shell inner boundary conditions, we simulate MHD shocks under switch-on shock conditions with a magnetospheric dipole inner boundary. Asymmetry in magnetic reconnection rates between the northern and southern hemispheres changes the bow shock configuration notably, eliminating the intermediate shock in one hemisphere in favor of a more standard fast shock. In the other hemisphere, however, the intermediate shock still forms as an important, stable element of the overall shock configuration. We also launch solar MHD waves into the simulation domain and observe how the resulting interactions change the bow shock configuration and affect the magnetosphere.
Cable Samuel
Holloway J. L.
Lin Yangtin
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