HR: 0830h
AN: SH11D-1133    [PDF]
TI: Multiple Ions Resonant Heating and Acceleration by Alfven/cyclotron Fluctuations in the Solar Wind
AU: * Xie, H
EM: hong@aurora.nascom.nasa.gov
AF: Catholic Unversity of American, Goddard Space Flight Center/NASA, Mail Code 682, Greenbelt, MD 20771 United States
AU: Ofman, L
EM: ofman@waves.gsfc.nasa.gov
AF: Catholic Unversity of American, Goddard Space Flight Center/NASA, Mail Code 682, Greenbelt, MD 20771 United States
AB: We study the interaction between protons, and multiple minor ions (O5+, He++) and a given cyclotron resonant spectra in coronal hole plasma. One-dimensional hybrid simulations are performed in initially homogeneous, collisionless, magnetized plasma with waves propagating parallel to the background magnetic field. The self-consistent hybrid simulations are used to study how multiple minor species may affect the resonance interaction between a spectrum of waves and the solar wind protons. The results of the simulations provide a clear picture of wave-particle interaction under various coronal conditions, which can explain 1) how multiple minor ions affect the resonant heating and the temperature anisotropy of the solar wind protons by a given wave spectrum; 2) how energy is distributed and transferred among waves and different ion species; 3) the growth and damping of different beam microinstability modes, including both inward and outward waves; 4) the formation of proton double-peak distribution in the solar wind.
DE: 7511 Coronal holes
DE: 7827 Kinetic and MHD theory
DE: 7843 Numerical simulation studies
DE: 7867 Wave/particle interactions
DE: 7871 Waves and instabilities
SC: SPA - Solar and Heliospheric Physics [SH]
MN: 2003 Fall Meeting