Japan Geoscience Union Meeting 2019

Presentation information

[E] Poster

P (Space and Planetary Sciences ) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM13] Inner magnetosphere: Recent understanding and new insights

Wed. May 29, 2019 3:30 PM - 5:00 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

convener:Yusuke Ebihara(Research Institute for Sustainable Humanosphere, Kyoto University), Danny Summers(Memorial University of Newfoundland), Yoshizumi Miyoshi(Institute for Space-Earth Environmental Research, Nagoya University), Shinji Saito(Graduate School of Science, Nagoya University)

[PEM13-P26] Energy spectra variations of high energy electrons in the inner magnetosphere observed by HEP/XEP on ARASE and SEDA-e on HIMAWARI

*Takeshi Takashima1, Takefumi Mitani1, Nana Higashio2, Tsutomu Nagatsuma3 (1. ISAS/JAXA, 2.Research and Development Directorate/JAXA, 3.NiCT)

Keywords:relativistic electron, inner magnetosphere, ARASE

The relativistic electrons in the outer radiation belt were disappeared/increased and their energy spectra were changed dynamically in some storms observed by XEP/HEP onboard the ARASE spacecraft. In the same time, SEDA-e with energy range 200keV-4.5MeV for electron on board the HIMAWARI-8, Japanese weather satellite on GEO, observed increase of relativistic electron in different local time.
When comparing the energy spectra, there are times when the spectrum matches or does not match. It is also observed that the change in the slope of the energy spectrum differs with time. These phenomena are observed even when there are two satellites at the same local time.
We will report on energy spectra variations of high energy electrons including calibrations of differential flux between XEP and HEP and discuss comparisons with energy spectra between ARAE and HIMAWARI that observed each storm in different local time.