HR: 1340h
AN: SM33C-0469    [Abstracts]
TI: Transport and Acceleration of Electrons from the Outer to the Inner Magnetosphere
AU: * Schriver, D
EM: dave@igpp.ucla.edu
AF: UCLA, Institute of Geophysics and Planetary Physics 3871 Slitchter Hall, Los Angeles, CA 90095-1567 United States
AU: Ashour-Abdalla, M
EM: mabdalla@igpp.ucla.edu
AF: UCLA, Institute of Geophysics and Planetary Physics 3871 Slitchter Hall, Los Angeles, CA 90095-1567 United States
AU: Zelenyi, L
EM: lzelenyi@iki.rssi.ru
AF: Russian Academy of Sciences, Space Research Institute Profsoynaia Str 84/32, Moscow, 117997 Russian Federation
AU: Gombosi, T
EM: tamas@umich.edu
AF: University of Michigan, Space Physics Research Lab 2455 Hayward, Ann Arbor, MI 48109-2143 United States
AU: Ridley, A
EM: ridley@umich.edu
AF: University of Michigan, Space Physics Research Lab 2455 Hayward, Ann Arbor, MI 48109-2143 United States
AU: Toth, G
EM: gtoth@grid.engin.umich.edu
AF: University of Michigan, Space Physics Research Lab 2455 Hayward, Ann Arbor, MI 48109-2143 United States
AU: Travnicek, P
EM: trav@alenka.ufa.cas.cz
AF: Institute of Atmospheric Physics, Czech Academy of Sciences Bocni II/1401, Prague, 14131 Czech Republic
AB: To examine the transport and acceleration of electrons throughout the Earth's magnetosphere, a global model that follows electron motion in magnetic and electric fields representative of the magnetospheric configuration has been developed. The goal is to understand the formation of the seed electron population with energies > keV located at about 10 R_E from the Earth in the equatorial plane. The results show that electrons launched in the outer magnetospere are adibatically compressed as they convect towards the magnetic midplane in the magnetotail forming a heated central plasma sheet towards the Earth. A group of electrons accelerated near a reconnection region located in the deep magnetotail also contributes to the plasma sheet population and the heated distribution function that forms in the seed region (at about 10 R_E) is a combination of electrons that are accelerated adiabatically and non-adiabatically. The results also show that the seed electron distribution is highly anisotropic with the perpendicular temperature about 2 times the parallel temperature. Results that consider different magnetic activity levels will be discussed and comparisions with Cluster satellite data in the near-Earth plasma sheet region will be presented.
DE: 2731 Magnetosphere: outer
DE: 2753 Numerical modeling
DE: 2764 Plasma sheet
SC: SPA-Magnetospheric Physics [SM]
MN: Fall Meeting 2005