First direct detection of ions originating from the Moon by MAP-PACE IMA onboard SELENE (KAGUYA)

Shoichiro Yokota, Yoshifumi Saito, Kazushi Asamura, Takaaki Tanaka, Masaki N. Nishino, Hideo Tsunakawa, Hidetoshi Shibuya, Masaki Matsushima, Hisayoshi Shimizu, Futoshi Takahashi, Masaki Fujimoto, Toshifumi Mukai, Toshio Terasawa

研究成果: Contribution to journalArticle査読

58 被引用数 (Scopus)

抄録

The Moon has no global intrinsic magnetic field and only has a very thin atmosphere. Ion measurements made from lunar orbit provide us with information regarding interactions between the solar wind and planetary surface, the surface composition through secondary ion mass spectrometry and the source and loss mechanisms of planetary tenuous atmosphere. An ion energy mass spectrometer MAP-PACE IMA onboard a lunar orbiter SELENE (KAGUYA) has detected low-energy ions at 100-km altitude. The MAP-PACE measurements have elucidated that the ions originate from the lunar surface and exosphere and that the ions are at least composed of He+, C+, O+, Na+ and K+. Following the discovery of the lunar Na and K exospheres by the ground-based observation, MAP-PACE IMA have found the He, C and 0 exospheres around the Moon.

本文言語英語
論文番号L11201
ジャーナルGeophysical Research Letters
36
11
DOI
出版ステータス出版済み - 6 16 2009
外部発表はい

All Science Journal Classification (ASJC) codes

  • 地球物理学
  • 地球惑星科学(全般)

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