Presentation Information
[PEM08-P21]Soft-X ray emissions from Geospace: Possible science objectives of GEO-X
*Yoshizumi Miyoshi1, Yosuke Matsumoto2, Yuichiro Ezoe3 (1.Institute for Space-Earth Environmental Research, Nagoya University, 2.Chiba University, 3.Tokyo Metropolitan University)
Keywords:
solar wind-magnetosphere coupling,soft-Xray emissions
Recent studies have indicated that charge-exchange between geocorona and
On+ ions of the solar wind causes the soft-X ray emission. The soft-X ray
emission can be used as a tool to measure global topology of Geospace.
In order to investigate how we can observe the soft-X ray emissions, we conduct
a computer simulation by a code coupling of the global magnetospheric MHD
simulation model (Matsumoto+, 2010) and empirical geocorona model. The
simulation shows clear emissions from the dayside sheath region as well as the cusp region.
The new satellite project GEO-X has been proposed to measure the
soft-X ray emission through solar wind charge exchange (SWCX) from the
dayside magnetosphere. In this presentation, we show the possible
soft-X ray images by the computer simulation, by considering the GEO-X
satellite orbit.
On+ ions of the solar wind causes the soft-X ray emission. The soft-X ray
emission can be used as a tool to measure global topology of Geospace.
In order to investigate how we can observe the soft-X ray emissions, we conduct
a computer simulation by a code coupling of the global magnetospheric MHD
simulation model (Matsumoto+, 2010) and empirical geocorona model. The
simulation shows clear emissions from the dayside sheath region as well as the cusp region.
The new satellite project GEO-X has been proposed to measure the
soft-X ray emission through solar wind charge exchange (SWCX) from the
dayside magnetosphere. In this presentation, we show the possible
soft-X ray images by the computer simulation, by considering the GEO-X
satellite orbit.