The population of the magnetotail by solar wind ions during the September 24-25, 1998 magnetic storm

Details The population of the magnetotail by solar wind ions during the September 24-25, 1998 magnetic storm The population of the magnetotail by solar wind ions during the September 24-25, 1998 magnetic storm

May 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agusmsm31a..05p&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #SM31A-05

Physics

2706 Cusp, 2724 Magnetopause And Boundary Layers, 2744 Magnetotail, 2748 Magnetotail Boundary Layers, 2764 Plasma Sheet

Scientific paper

We have modeled the population of the magnetotail by solar wind ions during the September 24 - 25, 1998 magnetic storm by using global magnetohydrodynamic (MHD) simulations and large-scale kinetic particle tracing. Wind spacecraft observations were used as input into the global time-dependent MHD simulation. Drifting Maxwellian distributions of solar wind protons were launched with the instantaneous solar wind velocity and temperature upstream of the bowshock at 5-minute intervals beginning one hour prior to the shock arrival and continuing throughout the sudden storm commencement and the main phase of the storm. Following the ion trajectories through detectors placed within the magnetopause current layer and into the magnetotail allowed us to gain a better understanding of the transport and acceleration of solar wind plasma through the magnetopause during this storm. We constructed time-dependent maps of solar wind proton number density and energy density in the plasma sheet and ring current and compared these results with those of ionospheric O+ ions during this storm.

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