HR: 1340h
AN: SM23A-0497    [Abstracts]
TI: The role of EMIC waves in scattering electrons
AU: * Wong, V
EM: navajo@mail.utexas.edu
AF: The University of Texas at Austin Physics Department Institute for Fusion Studies, 1 University Station C1600, Austin, TX 78712-0264 United States
AU: Horton, W
EM: horton@physics.utexas.edu
AF: The University of Texas at Austin Physics Department Institute for Fusion Studies, 1 University Station C1600, Austin, TX 78712-0264 United States
AU: Mithaiwala, M
EM: mithaiwa@physics.utexas.edu
AF: The University of Texas at Austin Physics Department Institute for Fusion Studies, 1 University Station C1600, Austin, TX 78712-0264 United States
AU: Ganguli, G
EM: gang@ppd.nrl.navy.mil
AF: Naval Research Laboratory Plasma Physics Division, Code 6794, Washington, DC 20375 United States
AB: The origin of killer electrons, those with energies greater than 1 MeV, in the Earth's inner magnetosphere is one of the main problems in magnetospheric research. It is theorized that these electrons are created by stochastic acceleration due to whistler waves with pitch angle scattering by electromagnetic ion-cyclotron waves (EMIC). Two-temperature bi-Maxwellian and ion-ring distributions are considered. The particle anisotropy thresholds for destabilizing the electromagnetic ion cyclotron mode are investigated. For the ring distribution, we will determine the condition of instability, the associated parallel wavenumber, and the width of the unstable parallel wavenumber spectrum.
DE: 7827 Kinetic and MHD theory
DE: 7867 Wave/particle interactions
DE: 7871 Waves and instabilities
DE: 2716 Energetic particles, precipitating
DE: 2772 Plasma waves and instabilities
SC: SPA-Magnetospheric Physics [SM]
MN: 2004 AGU Fall Meeting