HR: 0800h
AN: SM31B-04    [Abstracts]
TI: Investigating the Relationship of EMIC Waves and Relativistic Electron Precipitation Events
AU: Woodger, L A
EM: leslie.woodger@dartmouth.edu
AF: Dartmouth College, Dept. of Physics and Astronomy, Hanover, NH 03755, United States
AU: * Millan, R M
EM: robyn.millan@dartmouth.edu
AF: Dartmouth College, Dept. of Physics and Astronomy, Hanover, NH 03755, United States
AU: Goldstein, J
EM: jgoldstein@swri.edu
AF: Southwest Research Institute, Space Science and Engineering Division, San Antonio, TX 78228, United States
AU: McCarthy, M P
EM: mccarthy@geophys.washington.edu
AF: University of Washington, Dept. of Earth and Space Sciences, Seattle, WA 98195, United States
AU: Smith, D M
EM: dsmith@scipp.ucsc.edu
AF: University of California at Santa Cruz, SCIPP, Santa Cruz, CA 95064, United States
AU: Sample, J G
EM: jsample@ssl.berkeley.edu
AF: University of California at Berkeley, Space Sciences Lab, Berkeley, CA 94720, United States
AB: EMIC waves are generated and driven by anisotropic ring current protons. These unstable protons are injected into the inner magnetosphere by increased earthward convection during periods of elevated geomagnetic activity. A study by Meredith et al. (2003) showed EMIC wave events resonant with radiation belt electrons of energies less then 2MeV were located near the plasmapause in high density regions typical of the plasmaspheric plume. This study seeks to investigate the theory of relativistic electron precipitation (REP) due to wave particle interaction with EMIC waves. REP events were detected by balloon borne instrumentation during the MAXIS and MINIS balloon campaigns conducted in Jan. of 2000 and 2005 respectively. The location of these events with respect to the plasmapause will be explored using a plasmapause test particle simulation code and IMAGE EUV data. Also, data provided by the LANL satellite MPA instrument will be used to investigate the temperature anisotropy of ring current protons that may drive EMIC waves in the region of detected REP.
DE: 7867 Wave/particle interactions (2483, 6984)
DE: 7899 General or miscellaneous
SC: SPA-Magnetospheric Physics [SM]
MN: 2007 Joint Assembly