HR: 0800h
AN: SM51A-0345    [Abstracts]
TI: Nonlocal Self-Consistent Wave Model for Field Line Resonances Sustained Auroral Arcs
AU: * Prakash, M
EM: maprakas@notes.cc.sunysb.edu
AF: Department of Physics and Astronomy, SUNY at Stony Brook, Stony Brook, NY 11794 United States
AB: Formation of Alfven wave field line resonances sustained auroral arcs is an intriguing topic of research, despite the lack of abundant data to support the model. The FAST spacecraft data has had an immense impact on the development of theoretical formalisms (such as nonlocal kinetic wave models), in general, to explain the origin of parallel electric field that can accelerate electrons to form an auroral arc. However, the current nonlocal kinetic models of field line resonances (FLRs) sustained auroral arcs, in particular, are restricted to test particle approach only, and do not incorporate the feedback effects of electrons on Alfven waves along the whole geomagnetic field lines. Present work will develop a self-consistent model that will include the feedback effects of electrons on FLRs along the whole closed geomagnetic field line that supports the FLRs. The results will be discussed in the context of available FAST spacecraft data.
DE: 2483 Wave/particle interactions
DE: 2704 Auroral phenomena (2407)
DE: 2716 Energetic particles, precipitating
DE: 2752 MHD waves and instabilities
SC: SPA-Magnetospheric Physics [SM]
MN: 2004 AGU Fall Meeting