HR: 1330h
AN: SM43B-08    [Abstracts]
TI: Relativistic electron flux enhancement on October 28, 2003
AU: * Xie, L
EM: xielun@bu.edu
AF: Department of Geophysic, Beijing University, Yihuyuan Road N0.5, Haidian District, Beijing, beijing, 100871 China
AU: Fritz, T
EM: Fritz@bu.edu
AF: Center for Space Physics, Boston University, 725 Commonwealth Ave, Boston, Boston, 02215 United States
AU: Zong, Q
EM: Zong@bu.edu
AF: Center for Space Physics, Boston University, 725 Commonwealth Ave, Boston, Boston, 02215 United States
AU: PU, Z
EM: zypu@pku.edu.cn
AF: Department of Geophysic, Beijing University, Yihuyuan Road N0.5, Haidian District, Beijing, beijing, 100871 China
AB: Abrupt enhancement of relativistic electron (E > 2MeV) flux was observed by geosynchronous and polar orbit satellites at 11:50 UT on Oct. 28, 2003 after an intense X17 solar x-ray burst at 11:10 UT. The relativistic electron enhancement occurred before the magnetic storm starting at 6:00 UT on the next day and was directly correlated with the Solar Energetic Particle (SEP) event in the upstream solar wind. Observations by SAMPEX (E > 1MeV), NOAA/POES (E > 0.3MeV), Polar and Cluster spacecraft show that the abrupt electron enhancements. The increase of electron flux lasted for several days, with its peak being clearly in conjunction with the arrival of an interplanetary shock at the Earth. This study will focus on the relativistic electron behavior in the inner magnetosphere and radiation belt region. The implications for this event will be discussed.
DE: 2720 Energetic particles, trapped
DE: 2730 Magnetosphere--inner
DE: 2731 Magnetosphere--outer
DE: 2778 Ring current
DE: 2788 Storms and substorms
SC: SPA-Magnetospheric Physics [SM]
MN: 2005 Joint Assembly