Energetic Ion Entry into the Magnetosphere During Storm Intervals

Details Energetic Ion Entry into the Magnetosphere During Storm Intervals Energetic Ion Entry into the Magnetosphere During Storm Intervals

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufmsm71a0588r&link_type=abstract

American Geophysical Union, Fall Meeting 2002, abstract #SM71A-0588

Physics

2716 Energetic Particles, Precipitating, 2720 Energetic Particles, Trapped, 2740 Magnetospheric Configuration And Dynamics, 2753 Numerical Modeling, 7807 Charged Particle Motion And Acceleration

Scientific paper

During magnetic storms the magnetosphere is subjected not only to strong interactions with the solar wind and the interplanetary magnetic field (IMF) but can also be bombarded by energetic particles (SEP) of solar and interplanetary origin. For this study, storm time intervals with high SEP fluxes will be studied by using magnetohydrodynamic (MHD) simulations and particle tracing calculations. We have found that SEP entry in a slowly varying magnetosphere is determined by the magnetospheric configuration, which is controlled in turn by the IMF. The questions we will address in this study are how and where energetic (100 keV - 50 MeV) protons enter the highly stressed storm time magnetosphere, and if rapid time variations in the solar wind and the IMF augment the entry of the particles. We have performed MHD simulations of storm intervals by using solar wind and IMF time series measured by upstream spacecraft. The upstream boundary conditions for the MHD simulations are based on these time series. A large number of test ions are launched in the time-dependent electric and magnetic fields from the MHD simulation. The accessibility of magnetospheric regions to these ions as well as precipitation and trapping in the model is then evaluated.

Affiliated with

Also associated with

No associations

Rating

Energetic Ion Entry into the Magnetosphere During Storm Intervals does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Energetic Ion Entry into the Magnetosphere During Storm Intervals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Energetic Ion Entry into the Magnetosphere During Storm Intervals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1439671