HR: 1340h
AN: SH43A-1086    [Abstracts]
TI: Momentum Diffusion of Suprathermal Ions in Compressional Solar Wind Turbulence
AU: Bamert, K
EM: bamert@physik.uni-kiel.de
AF: Institut f\"{u}r Experimentelle und Angewandte Physik, University of Kiel, Leibnizstrasse 19, Kiel, 24098 Germany
AU: * Kallenbach, R
EM: kallenbach@issi.unibe.ch
AF: International Space Science Institute, Hallerstrasse 6, Bern, 3012 Switzerland
AU: le Roux, J A
EM: Jakobus@citrus.ucr.edu
AF: Institute of Geophysics and Planetary Physics, University of California, 1432 Geology Bldg., Riverside, 92521 United States
AB: The theories on momentum diffusion in non-compressional waves (Alfv\'{e}n waves) in the solar wind are well-developed while momentum diffusion of ions in compressional waves is explored to less extent. We present a model on stochastic acceleration of ions in compressional solar wind turbulence and compare the results to data from the ACE, SOHO, WIND, and Ulysses spacecraft. The experimentally determined acceleration time scales are used to model the evolution of the spectra of suprathermal ions convected through the heliosphere to the solar wind termination shock.
DE: 2114 Energetic particles, heliospheric (7514)
DE: 2124 Heliopause and solar wind termination
DE: 2149 MHD waves and turbulence
DE: 2159 Plasma waves and turbulence
DE: 2164 Solar wind plasma
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2004 AGU Fall Meeting