The origin of helium-3 isotope enhancement in the magnetosphere observed by TSUBASA satellite

M. Hareyama, M. Fujii, N. Hasebe, N. Kajiwara, S. Kodaira, K. Sakurai, M. Takano, T. Goka, H. Koshiishi, H. Matsumoto

研究成果

抄録

The energetic helium isotopes, 3He and 4He, were observed by Heavy Ion Telescope (HIT) onboard the TSUBASA satellite from March, 2002 to September, 2003 in the geostationary transfer orbit. These isotope data in the quiet periods were analyzed to obtain the spatial and temporal variation of fluxes of both isotopes. The enhancement and variation of the 3He/4He ratio in low L-value were found to be large in comparison with that of galactic cosmic rays (GCR), while the ratio in high L-value is almost stable and comparable to GCR one. These results suggest that the injection and loss mechanism of heavy ions differ between inner and outer radiation belts.

本文言語English
ホスト出版物のタイトルAstroparticle, Particle and Space Physics, Detectors and Medical Physics Applications - Proceedings of the 9th Conference
出版社World Scientific Publishing Co. Pte Ltd
ページ940-944
ページ数5
ISBN(印刷版)9812567984, 9789812567987
DOI
出版ステータスPublished - 2006
イベントInternational Conference on Advanced Technology and Particle Physics, ICATPP 2005 - Como, Italy
継続期間: 2005 10 172005 10 21

出版物シリーズ

名前Astroparticle, Particle and Space Physics, Detectors and Medical Physics Applications - Proceedings of the 9th Conference

Conference

ConferenceInternational Conference on Advanced Technology and Particle Physics, ICATPP 2005
国/地域Italy
CityComo
Period05/10/1705/10/21

ASJC Scopus subject areas

  • 天文学と天体物理学
  • 核物理学および高エネルギー物理学

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