Plasmoid formation for multiple onset substorms: Observations of the Japanese Lunar Mission "kaguya"

T. Nagai, H. Tsunakawa, H. Shibuya, F. Takahashi, H. Shimizu, M. Matsushima, M. N. Nishino, Y. Yokota, K. Asamura, T. Tanaka, Y. Saito, O. Amm

研究成果: Contribution to journalArticle

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The Japanese Lunar Mission "Kaguya" carried out its first magnetic field and plasma measurements in the Earth's magnetotail on 22 December 2007. Fortuitously, three well-defined multiple onset substoms took place. Kaguya was located in the premidnight magnetotail at radial distances of 56REand observed plasmoids and/or traveling compression regions (TCRs). Although the present study is based on limited data sets, important issues on multiple onset substorms can be examined. Each onset in a series of onsets releases a plasmoid, and magnetic reconnection likely proceeds to tail lobe field lines for each onset. Since the duration of each plasmoid is less than 5 min, these observations imply that magnetic reconnection for each onset can develop fully to the tail lobe field lines and be quenched within this timescale.

元の言語英語
ページ(範囲)59-64
ページ数6
ジャーナルAnnales Geophysicae
27
発行部数1
DOI
出版物ステータス出版済み - 1 6 2009

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Geology
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science

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    Nagai, T., Tsunakawa, H., Shibuya, H., Takahashi, F., Shimizu, H., Matsushima, M., Nishino, M. N., Yokota, Y., Asamura, K., Tanaka, T., Saito, Y., & Amm, O. (2009). Plasmoid formation for multiple onset substorms: Observations of the Japanese Lunar Mission "kaguya". Annales Geophysicae, 27(1), 59-64. https://doi.org/10.5194/angeo-27-59-2009