HR: 1340h
AN: SM33C-0460    [Abstracts]
TI: Modeling of Oxygen ions in inner magnetosphere during substorms
AU: * Jones, S T
EM: sjones@pop600.gsfc.nasa.gov
AF: Universities Space Research Association, Goddard Space Flight Center Code 612.2, Greenbelt, MD 20771 United States
AU: Fok, M
EM: mei-ching.h.fok@nasa.gov
AF: NASA/Goddard Space Flight Center, Goddard Space Flight Center Code 612.2, Greenbelt, MD 20771 United States
AB: The HENA instrument on IMAGE has observed significant increases in the Oxygen energetic neutral atom (ENA) signature during substorm events. The Hydrogen signature for the same events show relatively small change. We use a particle trajectory simulation developed by Delcourt to simulate the response of magnetospheric Oxygen ions to dipolarization of the geomagnetic field. Our results show strong injection in the pre-midnight sector during the expansion phase consistant with observed events.
DE: 7807 Charged particle motion and acceleration
DE: 7845 Particle acceleration
DE: 7846 Plasma energization
SC: SPA-Magnetospheric Physics [SM]
MN: Fall Meeting 2005