Japan Geoscience Union Meeting 2019

Presentation information

[E] Oral

P (Space and Planetary Sciences ) » P-CG Complex & General

[P-CG21] Future Missions and instrumentation for space and planetary science

Sun. May 26, 2019 10:45 AM - 12:15 PM A01 (TOKYO BAY MAKUHARI HALL)

convener:Mitsunori Ozaki(Faculty of Electrical and Computer Engineering, Institute of Science and Engineering, Kanazawa University), Satoshi Kasahara(The university of Tokyo), Shingo Kameda(School of Science, Rikkyo University), Kazuo Yoshioka(Graduate School of frontier Science, The University of Tokyo), Chairperson:Satoshi Kasahara , Mitsunori Ozaki(Kanazawa University)

11:50 AM - 12:10 PM

[PCG21-10] GEO-X (GEOspace X-ray imager) : Imaging the dayside solar wind-terrestrial magnetosphere interaction

★Invited Papers

*Yuichiro Ezoe1, Yoshizumi Miyoshi2, Satoshi Kasahara3, Ryu Funase3, Harunori Nagata4, Hiroshi Nakajima5, Kumi Ishikawa6, Atsushi Yamazaki6, Hiroshi Hasegawa6, Junko Hiraga7, Masaki Fujimoto6, Kazuhisa Mitsuda6, Munetaka Ueno8, Hiroyuki Koizumi3, Yasuhiro Kawakatsu6, Takahiro Iwata6, Hironori Sahara1 (1.Tokyo Metropolitan University, 2.Nagoya University, 3.University of Tokyo, 4.Hokkaido University, 5.Kanto Gakuin University, 6.ISAS/JAXA, 7.Kansei Gakuin University, 8.Kobe University)

Keywords:X-ray, Earth's magnetosphere

Understanding complex nature of the solar wind interaction with solar system objects such as the Earth’s magnetosphere, the Martian exosphere, and the Jovian magnetosphere is crucial in planetary physics, heliophysics and astrophysics including exoplanet physics. Remote sensing imaging observations provide global variation of these environments as a function of solar winds as demonstrated about aurora ovals, the terrestrial plasmasphere, and the terrestrial ring current. Such observations are complimentary to in-situ electromagnetic and particle observations. Recently soft X-ray emission (0.1-2.0 keV) generated via charge exchange process of high charge state solar wind ions (O6+, N5+, …) with geocorona is discovered. Numerical simulations predict that this emission must allow us to image dayside solar wind-terrestrial magnetospheric interaction such as the magnetosheaths, the cusps and the shock. GEO-X is a Japanese small satellite mission carrying a novel wide-field of view X-ray telescope and a high speed X-ray detector to demonstrate the X-ray imaging of the Earth’s magnetosphere. GEO-X aims observations of the dayside boundaries of the Earth’s magnetosphere in the vicinity of the Moon around the next solar maximum.