HR: 15:10h
AN: SM43D-07 INVITED     [Abstracts]
TI: Plasma Heating and Transport at the Magnetopause due to Nonlinear interactions with Kinetic ULF Waves
AU: * Johnson, J R
EM: jrj@pppl.gov
AF: Princeton University, Princeton University Plasma Physics Laboratory PO Box 451 MS #28, Princeton, NJ 08525 United States
AU: Wing, S
EM: simon.wing@jhuapl.edu
AF: The Johns Hopkins University, Applied Physics Laboratory 11100 Johns Hopkins Road, Laurel, MD 20723 United States
AU: Lin, Y
EM: ylin@physics.auburn.edu
AF: Auburn University, Department of Physics 206 Allison Laboratory, Auburn, AL 36849 United States
AU: Cheng, C Z
EM: frankcheng@nspo.org.tw
AF: National Space Program Office, 8F, 9 Prosperity 1st Road Hsinchu Science Park, Hsinchu, 30078 Taiwan
AB: The magnetopause and boundary layer are typically characterized by large amplitude transverse ULF wave activity with frequencies below the ion cyclotron frequency. The wave properties are consistent with a mode conversion process that couples large-scale surface MHD fluctuations with kinetic Alfvén waves at the magnetopause boundary. We model the waves with theory and global three-dimensional hybrid simulations, and we discuss the importance of plasma flow for this process along the flanks. We find that ions and electrons can interact nonlinearly with these waves leading to perpendicular heating of ions, parallel heating of electrons, and plasma transport across the magnetopause boundary. We compare these theoretical findings with both in situ GEOTAIL particle observations and remote observations of plasma along the magnetotail flanks inferred using DMSP and discuss possible causes for dawn-dusk asymmetries in the particle distributions that are manifest in the global density and temperature profiles.
UR: http://w3.pppl.gov/~jrj/magnetopause.html
DE: 2724 Magnetopause and boundary layers
DE: 7805 Chaos (4420)
DE: 7827 Kinetic and MHD theory
DE: 7839 Nonlinear phenomena (4400, 6944)
DE: 7859 Transport processes
SC: SPA-Magnetospheric Physics [SM]
MN: Fall Meeting 2005