Physics – Plasma Physics
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsm33a0340o&link_type=abstract
American Geophysical Union, Fall Meeting 2006, abstract #SM33A-0340
Physics
Plasma Physics
2774 Radiation Belts, 2778 Ring Current, 2788 Magnetic Storms And Substorms (7954)
Scientific paper
Energetic particles in the ring current and radiation belts drastically change during magnetic storms. Study of the energetic particle is an exciting subject not only for the space plasma physics but also for the space weather. Comprehensive observations of particles, fields, and waves are necessary to understand key processes of particle acceleration in Geospace. Measurements of both electric and magnetic components of plasma waves in a wide frequency range together with thermal plasma environment are necessary to evaluate non-adiabatic acceleration processes of relativistic particles. In order to investigate global plasma dynamics in Geospace including the acceleration processes of relativistic particles, the small satellite mission, ERG (Energization and Radiation in Geospace), was proposed in Japan. The ERG satellite will be launched into a geosynchronous transfer orbit with small inclination during next solar maximum, and the satellite will observe particles in a wide energy range from a few eV to 10 MeV with measurement of ion species. The satellite will also observe fields and waves for both electric and magnetic components in a wide frequency range. The ERG project considers international collaborations with the RBSP and ORBITALS satellites, which will be launched during the same solar maximum interval. Combinations with ground-based networks such as SuperDARN, CPMN magnetometers, and optical instruments and with global modeling efforts of Geospace, are also considered. The data from the ERG satellite are correlated with these other simultaneously operating projects, in order to address scientific issues in Geospace and to contribute to the International Living With a Star (ILWS) program.
Asamura Kazushi
ERG Project Team
Hirahara Masafumi
Kasaba Yasumasa
Matsuoka Ayako
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