HR: 10:55h
AN: SH22A-03    [Abstracts]
TI: MINIS Observations of MeV electron precipitation on January 21st 2005
AU: * Sample, J G
EM: jsample@ssl.berkeley.edu
AF: University of California Berkeley, Space Sciences Lab 7 Gauss Way, Berkeley, CA 94720 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: Millan, R M
EM: robyn.millan@dartmouth.edu
AF: Dartmouth College, Dept. of Physics and Astronomy, Hanover, NH 03755 United States
AU: Kokorowski, M
EM: mkoko@washington.edu
AF: University of Washington, Dept. of Earth and Space Sciences, Seattle, WA 98195 United States
AU: Bale, S
EM: bale@ssl.berkeley.edu
AF: University of California Berkeley, Space Sciences Lab 7 Gauss Way, Berkeley, CA 94720 United States
AU: Bering, E A
EM: eabering@uh.edu
AF: University of Houston, Dept. of Physics, Houston, TX 77204-5506 United States
AU: Blake, J B
EM: jbernard.blake@aero.org
AF: Aerospace Corporation, Box 92957, Los Angeles, CA 90009-2957 United States
AU: Collier, A B
EM: colliera@nu.ac.za
AF: University of Natal, Physics Dept., Durban, 4001 South Africa
AU: Holzworth, R H
EM: bobholz@ess.washington.edu
AF: University of Washington, Dept. of Earth and Space Sciences, Seattle, WA 98195 United States
AU: Hughes, A R
EM: hughes@nu.ac.za
AF: University of Natal, Physics Dept., Durban, 4001 South Africa
AU: Lay, E
EM: erinlay@ess.washington.edu
AF: University of Washington, Dept. of Earth and Space Sciences, Seattle, WA 98195 United States
AU: Lin, R P
EM: rlin@ssl.berkeley.edu
AF: University of California Berkeley, Space Sciences Lab 7 Gauss Way, Berkeley, CA 94720 United States
AU: Moraal, H
EM: fskhm@puk.ac.za
AF: North-West University, School of Physics, Potchefstroom, 2520 South Africa
AU: O'Brien, T P
EM: paul.obrien@aero.org
AF: Aerospace Corporation, Box 92957, Los Angeles, CA 90009-2957 United States
AU: Parks, G K
EM: parks@ssl.berkeley.edu
AF: University of California Berkeley, Space Sciences Lab 7 Gauss Way, Berkeley, CA 94720 United States
AU: Pulupa, M
EM: pulupa@ssl.berkeley.edu
AF: University of California Berkeley, Space Sciences Lab 7 Gauss Way, Berkeley, CA 94720 United States
AU: Reddell, B D
EM: brandon.d.reddell@boeing.com
AF: University of Houston, Dept. of Physics, Houston, TX 77204-5506 United States
AU: Smith, D M
EM: dsmith@scipp.ucsc.edu
AF: University of California Santa Cruz, SCIPP, Santa Cruz, CA 95064 United States
AU: Stoker, P
EM: fskphs@puk.ac.za
AF: North-West University, School of Physics, Potchefstroom, 2520 South Africa
AU: Woodger, L
EM: leslie.woodger@dartmouth.edu
AF: Dartmouth College, Dept. of Physics and Astronomy, Hanover, NH 03755 United States
AB: During the magnetospheric disturbances of January 21st 2005 the MINIS balloon campaign observed intense X-ray bursts at three locations separated in L-shell and local time. These X-rays are bremsstrahlung radiation produced by highly relativistic (~1MeV) electrons precipitating out of the Earth's radiation belt and the bursts show interesting spatial and temporal structure. We will present a brief background on single-point observations from previous balloon campaigns and show the unique structure revealed by these newer multi-point observations. We have also modeled the bremsstrahlung production and atmospheric scattering to obtain the energy spectrum and flux of precipitating electrons. Using these modeling results we then make an estimate of the loss rate of high energy electrons from the trapped population. Estimating the loss rate is an essential part of understanding the trapped population of these killer electrons.
DE: 2716 Energetic particles: precipitating
DE: 2720 Energetic particles: trapped
DE: 2774 Radiation belts
SC: SPA-Solar and Heliospheric Physics [SH]
MN: Fall Meeting 2005