HR: 1340h
AN: SM53A-1082    [Abstracts]
TI: Alfvenic Acceleration of Io Torus Electrons
AU: * Jones, S T
EM: samjones@uta.edu
AF: University of Texas at Arlington Department of Physics, 502 Yates St., Science Hall 108, Arlington, TX 76019, United States
AU: Su, Y
EM: yijiun@uta.edu
AF: University of Texas at Arlington Department of Physics, 502 Yates St., Science Hall 108, Arlington, TX 76019, United States
AB: The observed auroral spot at the Io footprint indicates that electron acceleration is occurring along the Io fluxtube. Su et al.[2006] has demonstrated using a gyro-fluid Alfven wave simulation that Alfven waves originating from the torus can partially propagate into the Jovian Magnetosphere. We will present a study showing where resonant electron acceleration due to the Alfvenic parallel electric field occurs. We will also show the dependence of this acceleration on local plasma parameters such as density and temperature. We will compare these results to acceleration studies in the Terrestrial magnetosphere. Su, Y.-J., S.T. Jones, R.E. Ergun, F. Bagenal, S. E. Parker, P. A. Delamere, and R. L Lysak, Io-Jupiter interaction: Alfven wave propagation and ionospheric Alfven resonator, J. Geophys. Res., 111, A06211, doi:10.1029/2005JA011252, 2006.
DE: 2716 Energetic particles: precipitating
DE: 2772 Plasma waves and instabilities (2471)
DE: 5719 Interactions with particles and fields
DE: 7845 Particle acceleration
SC: SPA-Magnetospheric Physics [SM]
MN: 2007 Fall Meeting