Physics
Scientific paper
Mar 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3206108k&link_type=abstract
Geophysical Research Letters, Volume 32, Issue 6, CiteID L06108
Physics
8
Magnetospheric Physics: Energetic Particles: Trapped, Magnetospheric Physics: Magnetospheric Configuration And Dynamics, Magnetospheric Physics: Numerical Modeling, Magnetospheric Physics: Radiation Belts, Magnetospheric Physics: Solar Wind/Magnetosphere Interactions
Scientific paper
A mechanism for prompt trapping of solar energetic particles (SEPs) in the inner magnetosphere during severe storms is numerically demonstrated. The mechanism can be understood in terms of a generalization of Störmer theory to a time dependently perturbed dipole magnetic field. Test particle Lorentz trajectories are computed in fields from a Lyon-Feder-Mobarry (LFM) global MHD magnetospheric model simulation of the 24 Nov 2001 storm to show energetic particles may be impulsively injected into the magnetosphere and trapped on a time scale of minutes by a sudden compression and de-compression of the magnetosphere. It is also shown that SEPs with access to the innermost L-shells enter through the magnetopause on the day side.
Hudson Mary K.
Kress Brian T.
Slocum P. L.
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