Investigation of the Geomagnetic Tail by the GEOTAIL Satellite

• Project/Area Number: 04044168
• Research Category: Grant-in-Aid for international Scientific Research
• Allocation Type: Single-year Grants
• Section: Joint Research
• Research Institution: Institute of Space and Astronautical Science
• Principal Investigator: NISHIDA Atsuhiro ISAS, 教授 (40013643)
• Co-Investigator(Kenkyū-buntansha): HOSHINO Masahiro ISAS, 助教授 (90241257) ; MACHIDA Shinobu Kyoto Univ., 理学部, 教授 (70209469) ; SAITO Yoshifumi ISAS, 助手 (30260011) ; OBARA Takahiro ISAS, 助手 (50194626) ; NAGAI Tsugunobu Tokyo Terrestrial of Technology, 理学部, 助教授 (60260527) ; MUKAI Toshifumi ISAS, 教授 (60013695) ; TAKAHASHI Kazue STEL Nagoya Univ., 太陽地球環境研究所, 教授 (70252294) ; ARAKI Tooru Kyoto Univ., 理学部, 教授 (50025433) ; HIRAHARA Masafumi Univ.Tokyo, 理学部, 助手 (50242102) ; MATSUMOTO Hiroshi RASC,Kyoto Univ., 超高層電波研究センター, 教授 (00026139) ; HASEBE Nobuyuki Ehime Univ., 工学部, 助教授 (10127904) ; MAEZAWA Kiyosi Nagoya Univ., 理学部, 助教授 (60126901) ; FUJIMOTO Masaki Nagoya Univ., 理学部, 助手 (30242811) ; NAGATA Katsuaki Tamagawa Univ., 工学部, 教授 (70074416) ; OKADA Toshimi Toyama Univ., 助教授 (90008566) ; KIMURA Iwane Kyoto Univ., 工学部, 教授 (00025884) ; HASHIMOTO Kouzou Tokyo Denki Univ., 教授 (80026369) ; DOKE Tadayosi Waseda Univ., 理工研, 教授 (60063369) ; ACUNA M. NASA GSFC, 部長 ; NAGANO Isamu Kanazawa Univ., 工学部, 教授 (50019775) ; ANDERSON R.r. Univ.Iowa, 主任研究員 ; WILKEN B. Max Plank Aeronomie, 部長 ; WILLIAMS D.j. APL JHU, 応用物理研究所, 部長 ; MOZER F. Univ.California, バークレイ校, 教授 ; TROSHICHEV O. Russian AAI, 部長 ; ZELENYI L. Russian IKI, 部長 ; FELDSTEIN Y. Russian IZMIRAN, 主任研究員 ; SHIOKAWA Kazuo STEL Nagoya Univ., 太陽地球環境研究所, 教授 (80226092) ; NAKAMURA Tadasu ISAS, 助手 (70270436) ; YAMAMOTO Tatsundo ISAS, 助教授 (90182633) ; TERASAWA Toshio STEL,Nagoya Univ., 太陽地球環境研究所, 教授 (30134662) ; KOKUBUN Susumu STEL,Nagoya Univ., 太陽地球環境研究所, 教授 (00011502) ; NAKAGAWA Tomoko Tohoku Institute of Technology, 講師 (40222161) ; MATSUOKA Ayako ISAS, 助手 (80270437) ; NAKAMURA Masato Univ.Tokyo, 助教授 (20227937) ; FRANK L.a. Univ.Iowa, 教授 ; HAYAKAWA Hajime ISAS, 助教授 (90167594) ; FAIRFIELD D.a. NASA GSFC, 主任研究員 ; TSURUDA Koichiro ISAS, 教授 (10013682) ; 筒井 稔 京都産業大学, 助教授 (10026172) ; L. Zelenyi ロシア宇宙科学研究所, 部長 ; 小嶋 浩嗣 京都大学, 超高層電波科学センター, 助手 (10215254) ; 大村 善治 京都大学, 超高層電波科学センター, 助教授 (50177002) ; B. Wilken マックスプランク研究所, 部長 ; R.R. Anderso アイオワ大学, 主任研究員 ; M. Acuna NASAゴダードスペースフライトセンター, 部長 ; D.A. Fairfie NASAゴダードスペースフライトセンター, 主任研究員 ; L.A. Frank アイオワ大学, 教授 ; D.J. William ジョンホプキンス大学応用物理研究所, 部長 ; F. Mozer カリフォルニア大学バークレイ校, 教授 ; 河野 毅 理化学研究所, 先任研究員 (60211231) ; R R Anderson アイオワ大学, 主任研究員 ; B Wilken マックスプランク研究所, 部長 ; D J Williams ジョンホプキンス大学, 応用物理研究所, 部長 ; F Mozer カリフォルニア大学バークレイ校, 教授 ; L Zelenyi ロシア宇宙科学研究所, 部長 ; L A Frank アイオワ大学, 教授 ; R P Lepping NASAゴダードスペースフライトセンター, 主任研究員 ; 橋本 正之 宇宙科学研究所, 助手 (80013712) ; 横山 幸嗣 宇宙科学研究所, 助手 (50013165) ; 井上 浩三郎 宇宙科学研究所, 助手 (30013725) ; 松方 純 宇宙科学研究所, 助教授 (70173820) ; 上杉 邦憲 宇宙科学研究所, 教授 (40013693) ; 川口 淳一郎 宇宙科学研究所, 助教授 (10169691) ; 中谷 一郎 宇宙科学研究所, 教授 (40150049) ; MARIO Acuna NASAゴダードスペースフライトセンター, 部長
• Project Period (FY): 1992 – 1994
• Project Status: Completed (Fiscal Year 1994)
• Budget Amount: ¥25,000,000 (Direct Cost: ¥25,000,000); Fiscal Year 1994: ¥6,000,000 (Direct Cost: ¥6,000,000); Fiscal Year 1993: ¥6,000,000 (Direct Cost: ¥6,000,000); Fiscal Year 1992: ¥13,000,000 (Direct Cost: ¥13,000,000)
• Keywords: Magnetosphere / GEOTAIL satellite / Magnetotail / Neutral sheet / Interplanetary magnetic field / Magnetic reconnection / Slow-mode shock / Plasma waves / GEOTAIL衛星 / 磁気圏境界面 / 太陽風 / 惑星間空間 / プラズモイド / ラングミュア波 / 磁力線再結合 / プラズマ加速 / 磁気中性線 / 広周波数帯静電ノイズ

Research Abstract

1. Global structure of the distant tail GEOTAIL observations have confirmed that the magnetotail extends to 200 Re and beyond. It flaps violently north-south as well as east-west with amplitudes comparable to its average radius of about 20 Re, but there is no indication that it is filamentary. Plasma sheet is clearly distinguishable from the lobe or the magnetosheath by high temperature (around 1 keV) and low density (around 0.1/cc). Its magnetic structure and internal convection profile are governed by the north-south polarity of the interplanetary magnetic field.
2. Distant tail under the southward IMF Under the southward IMF,magnetic field lines convect toward the neutral sheet where they are reconnected. The probability that open field lines are reconnected earthward of 150 Re is about 75%. The reconnection rate is the highest at the tail axis and decreases toward the flanks by a factor of 2 to 3.
3. Plasma heating and relaxation at the plasma-sheet lobe boundary At the plasma sheet boundary, the slow-mode shock is formed in the convective flow where the cold ions of the lobe become heated. Very energetic ions flow upstream from the shock. The mixed population of cold and hot particles in this boundary region is a rich source of plasma waves whose non-linear development is seen.
4. Distant tail under northward IMF Under the northward IMF,the open field lines which are presumably produced in the cusp region of the dayside magnetopause sweep across the tail. The convection is parallel to the neutral sheet which is highly twisted in the direction of IMF and has opposite directions (dawn to dusk vs dusk to dawn) on opposite sides of the neutral sheet. The source of the hot plasma in the plasma sheet which is located in the open field lines poses a new problem.

Research Products

• [Publications] A.Nishida: "The Geotail Mission" Geophysical Research Letters. 21. 2871-2874 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] T.Yamamoto,et al.: "Magnetic field structures of the magnetotail as observed by Geotail" Geophysical Research Letters. 21. 2875-2878 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] T.Yamamoto,et al.: "Dense plasmas in the distant magnetotail as observed by Geotail" Geophysical Research Letters. 21. 2879-2882 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] S.Kokubun,et al.: "Quasi-periodic oscillations of the magnetopaus during northward sheath magnetic field" Geophysical Research Letters. 21. 2883-2886 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] H.Kawano,et al.: "Right-handed ion/ion resonant instability in the plasma sheet boundary layer:Geotail observation in the distant tail" Geophysical Research Letters. 21. 2887-2890 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] H.Kawano,et al.: "A flux rope followed by recurring encounters with traveling compression regions:Geotail observations" Geophysical Research Letters. 21. 2891-2894 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] H.Kawano,et al.: "Magnetopause characteristics during a four-hour interval of multiple crossings observed with Geotail" Geophysical Research Letters. 21. 2895-2898 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] K.Takahashi,et al.: "Geotail observation of magnetosonic Pc 3 waves in the dayside magnetosphere" Geophysical Research Letters. 21. 2899-2902 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] M.Nakamura,et al.: "Pc 5 pulsation observed in the dayside magnetosphere by Geotail" Geophysical Research Letters. 21. 2903-2906 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] Y.Saito,et al.: "Rapid variations of the plasma bulk flow direction observed in the plasma sheet at X_<GSE>〜-60Re" Geophysical Research Letters. 21. 393-396 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] T.Mukai,et al.: "Geotail observation of cold ion streams in the medium distance magnetotail lobe in the course of a substorm" Geophysical Research Letters. 21. 1023-1026 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] S.Machida,et al.: "Plasma distribution functions in the Earth's magnetotail (X_<GSM>〜-42R_E)at the time of a magnetospheric substorm:GEOTAIL/LEP observation" Geophysical Research Letters. 21. 1027-1030 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] K.Hayashi,H.Kawano,T.Yamamoto,S.Kokubun: "Whistler mode waves observed by MGF search coil magnetometer:Polarization and wave normal features of upstream wave near the bow-shock" Geophysical Research Letters. 21. 2907-2910 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] I.Nagano,et al.: "Wave form analysis of the continuum radiation observed Geotail" Geophysical Research Letters. 21. 2911-2914 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] H.Matsumoto,et al.: "Electrostatic Solitary Waves (ESW)in the magnetotail:BEN wave forms observed by Geotail" Geophysical Research Letters. 21. 2915-2918 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] H.Kojima,H.Matsumoto,I.Nagano,L.A.Flank,T.Mukai,Y.Saito,S.Machida,R.R.Anderson: "Relation between electrostatic solitary waves and hot plasma flow in the plasma sheet boundary layer:Geotail observations" Geophysical Research Letters. 21. 2919-2922 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] Y.Omura,H.Matsumoto: "Computer simulation of Electrostatic Solitary Waves:A nonlinear model of broadband electrostatic noise" Geophysical Research Letters. 21. 2923-2926 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] K.Hashimoto,et al.: "Auroral myriametric radiation observed by Geotail" Geophysical Research Letters. 21. 2927-2930 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] T.Okada,et al.: "Geotail observations of electrostatic waves in the lower hybrid frequency range in the plasma sheet boundary layer" Geophysical Research Letters. 21. 2931-2934 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] M.Hoshino,et al.: "Turbulent magnetic field in the distant magnetotail:Bottom-up process of plasmoid formation?" Geophysical Research Letters. 21. 2935-2938 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] A.Nishida,et al.: "Transition from slow flow to fast tailward flow in the distant plasma sheet" Geophysical Research Letters. 21. 2939-2942 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] A.Nishida,et al.: "Classification of the tailward drifting magnetic structures in the distant tail" Geophysical Research Letters. 21. 2947-2950 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] A.Nishida,et al.: "Structure of neutral sheet in the distant tail(x=-210R_e)in geomagnetically quiet time" Geophysical Research Letters. 21. 2951-2954 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] M.Fujimoto,et al.: "Acceleration of heavy ions in the magnetotail reconnection layer" Geophysical Research Letters. 21. 2955-2958 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] F.S.Mozer,et al.: "Direct entry of dense flowing plasmas into the distant tail lobes" Geophysical Research Letters. 21. 2959-2962 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] L.A.Frank,et al.: "Observations of plasmas associated with the magnetic signature of a plasmoid in the distant magnetotail" Geophysical Research Letters. 21. 2967-2970 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] F.S.Mozer,et al.: "The morningside low-latitude boundary layer as determined from electric and magnetic field measurements on Geotail" Geophysical Research Letters. 21. 2983-2986 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] C.Cattell,F.Mozer,K.Tsuruda,H.Hayakawa,M.Nakamura,T.Okada,S.Kokubun,T.Yamamoto: "Geotail observations of spiky electric fields and low-frequency waves in the plasma sheet and plasma sheet boundary" Geophysical Research Letters. 21. 2987-2990 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] T.Nagai,et al.: "Initial Geotail survey of magnetic substorm signatures in the magnetotail" Geophysical Research Letters. 21. 2991-2994 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] S.Machida,et al.: "Geotail low energy particle and magnetic filed observations of a plasmoid at X_<CSM>=-142R_E" Geophysical Research Letters. 21. 2995-2998 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] Y.Saito,et al.: "Geotail observation of ring-shaped ion distribution function in the plasma sheet-lobe boundary" Geophysical Research Letters. 21. 2999-3002 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] M.Hirahara,et al.: "Acceleration and heating of cold ion beams in the plasma sheet boundary layer observed with Geotail" Geophysical Research Letters. 21. 3003-3006 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] D.J.Williams,et al.: "Magnetopause encounters in the magnetotail at distance of 〜80R_e" Geophysical Research Letters. 21. 3007-3010 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] A.T.Y.Lui,D.J.Williams,T.Yamamoto,S.Kokubun,L.A.Frank,K.Tsuruda: "A filament of energetic particles near the high-latitude dawn magnetopause" Geophysical Research Letters. 21. 3011-3014 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] C.Jacquey,D.J.Williams,S.Kokubun,T.Yamamoto: "Tailward energetic ion streams observed at 〜100R_E by Geotail-EPIC associated with geomagnetic activity intensification" Geophysical Research Letters. 21. 3015-3019 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] A.T.Y.Lui,D.J.Williams,T.Yamamoto,S.Kokubun: "A preliminary assessment of energetic ion species in flux ropse/plasmoids in the distant tail" Geophysical Research Letters. 21. 3019-3022 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] S.P.Christon,D.J.Williams,T.Mukai,S.Kokubun,D.H.Fairfield,M.Hirahara,T.Yamamoto: "Energetic atomic and molecular ions of ionospheric origin observed in distant magnetotail flow-reversal events" Geophysical Research Letters. 21. 3023-3026 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] N.Hasebe,et al.: "Rapid recovery of anomalous cosmic ray flux at 1 AU in solar cycle 22" Geophysical Research Letters. 21. 3027-3030 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] S.Kokubun,et al.: "The GEOTAIL magbntic field experiment" Journal of Geomagnetism and Geoelectricity. 46. 7-21 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] L.A.Frank,et al.: "The Comprehensive Plasma Instrumentation (CPI) for the GEOTAIL spacecraft" Journal of Geomagnetism and Geoelectricity. 46. 23-37 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] D.J.Williams,et al.: "GEOTAIL energetic particles and ion composition instrument" Journal of Geomagnetism and Geoelectricity. 46. 37-57 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] H.Matsumoto,et al.: "Plasma wave observations with GEOTAIL spacecraft" Journal of Geomagnetism and Geoelectricity. 46. 59-95 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] T.Mukai,et al.: "The Low Energy Particle (LEP) experiment on board the GEOTAIL satellite" Journal of Geomagnetism and Geoelectricity. 46. 669-692 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] K.Tsuruda,et al.: "Electric field measurements on the GEOTAIL satellite" Journal of Geomagnetism and Geoelectricity. 46. 693-711 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] T.Doke,et al.: "The energetic particle spectrometer HEP onboard the GEOTAIL spacecraft" Journal of Geomagnetism and Geoelectricity. 46. 713-733 (1994)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] K.Tsuruda,et al.: "The boundary structure at the distant magnetotail lobe" Adov.Space Res.(in press 1995).
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] A.Nishida: "The Geotail Mission" Geophysical Research Letters. 21. 2871-2874 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] T.Yamamoto, et al.: "Magnetic field structures of the magnetotail as observed by Geotail" Geophysical Research Letters. 21. 2875-2878 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] T.Yamamoto, et al.: "Dense plasmas in the distant magnetotail as observed by Geotail" Geophysical Research Letters. 21. 2879-2882 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] S.Kokubun, et al.: "Quasi-periodic oscillations of the magnetopause during northward sheath magnetic field" Geophysical Research Letters. 21. 2883-2886 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] H.Kawano, et al.: "Right-handed ion/ion resonant instability in the plasma sheet boundary layr : Geotail observation in the distant tail" Geophysical Research Letters. 21. 2887-2890 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] H.Kawano, et al.: "A flux rope followed by recurring encounters with traveling compression regions : Geotail observations" Geophysical Research Letters. 21. 2891-2894 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] H.Kawano, et al.: "Magnetopause characteristics during a four-hour interval of multiple crossings observed with Geotail" Geophysical Research Letters. 21. 2895-2898 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] K.Takahashi, et al.: "Geotail observation of magnetosonic Pc 3 waves in the dayside magnetosphere" Geophysical Research Letters. 21. 2899-2902 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] M.Nakamura, et al.: "Pc5 pulsation observed in the dayside magnetosphere by Geotail" Geophysical Research Letters. 21. 2903-2906 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] Y.Saito, et al.: "Rapid variations of the plasma bulk flow direction observed in the plasma sheet at X_<GSE>--60Re" Geophysical Research Letters. 21. 393-396 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] T.Mukai, et al.: "Geotail observation of cold ion streams in the medium distance magnetotail lobe in the course of a substorm" Geophysical Research Letters. 21. 1023-1026 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] S.Machida, et al.: "Plasma distribution functions in the Earth's magnetotail (X_<GSM>--42R_E) at the time of a magnetospheric substorm : GEOTAIL/LEP observation" Geophysical Research Letters. 21. 1027-1030 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] K.Hayashi, H.Kawano, T.Yamamoto, S.Kokubun: "Whistler mode waves observed by MGF search coil magnetometer : Polarization and wave normal features of upstream waves near the bow-shock" Geophysical Research Letters. 21. 2907-2910 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] I.Nagano, et al.: "Wave form analysis of the continuum radiation observed by Geotail" Geophysical Research Letters. 21. 2911-2914 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] H.Matsumoto, et al.: "Electrostatic Solitary Waves (ESW) in the magnetotail : BEN wave forms observed by Geotail" Geophysical Research Letters. 21. 2915-2918 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] H.Kojima, H.Matsumoto, I.Nagano, L.A.Flank, T.Mukai, Y.Saito, S.Machida, R.R.Anderson: "Relation between electrostatic solitary waves and hot plasma flow in the plasma sheet boundary layr : Geotail observations" Geophysical Research Letters. 21. 2919-2922 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] Y.Omura, H.Matsumoto: "Computer simulation of Electrostatic Solitary Waves : A nonlinear model of broadband electrostatic noise" Geophysical Research Letters. 21. 2923-2926 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] K.Hashimoto, et al.: "Auroral myriametric radiation observed by Geotail" Geophysical Research Letters. 21. 2927-2930 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] T.Okada, et al.: "Geotail observations of electrostatic waves in the lower hybrid frequency range in the plasma sheet boundary layr" Geophysical Research Letters. 21. 2931-2934 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] M.Hoshino, et al.: "Turbulent magnetic field in the distant magnetotail : Bottom-up process of plasmoid formation?" Geophysical Research Letters. 21. 2935-2938 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] A.Nishida, et al.: "Transition from slow flow to fast tailward flow in the distant plasma sheet" Geophysical Research Letters. 21. 2939-2942 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] A.Nishida, et al.: "Classification of the tailward drifting magnetic structures in the distant tail" Geophysical Research Letters. 21. 2947-2950 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] A.Nishida, et al.: "Structure of neutral sheet in the distant tail (x=-210R_e) in geomagnetically quiet times" Geophysical Research Letters. 21. 2951-2954 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] M.Fujimoto, et al.: "Acceleration of heavy ions in the magnetotail reconnection layr" Geophysical Research Letters. 21. 2955-2958 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] F.S.Mozer, et al.: "Direct entry of dense flowing plasmas into the distant tail lobes" Geophysical Research Letters. 21. 2959-2962 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] L.A.Frank, et al.: "Observations of plasmas associated with the magnetic signature of a plasmoid in the distant magnetotail" Geophysical Research Letters. 21. 2967-2970 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] F.S.Mozer, et al.: "The morningside low-latitude boundary layr as determined from electric and magnetic field measurements on Geotail" Geophysical Research Letters. 21. 2983-2896 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] C.Cattell, F.Mozer, K.Tsuruda, H.Hayakawa, M.Nakamura, T.Okada, S.Kokubun, T.Yamamoto: "Geotail observations of spiky electric fields and low-frequency waves in the plasma sheet and plasma sheet boundary" Geophysical Research Letters. 21. 2987-2990 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] T.Nagai, et al.: "Initial Geotail survey of magnetic substorm signatures in the magnetotail" Geophysical Research Letters. 21. 2991-2994 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] S.Machida, et al.: "Geotail low energy particle and magnetic field observations of a plasmoid at X_<GSM>=-142R_E" Geophysical Research Letters. 21. 2995-2998 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] Y.Saito, et al.: "Geotail observation of ring-shaped ion distribution functions in the plasma sheet-lobe boundary" Geophysical Research Letters. 21. 2999-3002 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] M.Hirahara, et al.: "Acceleration and heating of cold ion beams in the plasma sheet boundary layr observed with Geotail" Geophysical Research Letters. 21. 3003-3006 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] D.J.Williams, et al.: "Magnetopause encounters in the magnetotail at distances of -80R_e" Geophysical Research Letters. 21. 3007-3010 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] A.T.Y.Lui, D.J.Williams, T.Yamamoto, S.Kokubun, L.A.Frank, K.Tsuruda: "A filament of energetic particles near the high-latitude dawn magnetopause" Geophysical Research Letters. 21. 3011-3014 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] C.Jacquey, D.J.Williams, S.Kokubun, T.Yamamoto: "Tailward energetic ion streams observed at -100R_E by Geotail-EPIC associated with geomagnetic activity intensification" Geophysical Research Letters. 21. 3015-3019 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] A.T.Y.Lui, D.J.Williams, T.Yamamoto, S.Kokubun: "A preliminary assessment of energetic ion species in flux ropes/plasmoids in the distant tail" Geophysical Research Letters. 21. 3019-3022 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] S.P.Christon, D.J.Williams, T.Mukai, S.Kokubun, D.H.Fairfield, M.Hirahara, T.Yamamoto: "Energetic atomic and molecular ions of ionospheric origin observed in distant magnetotail flow-reversal events" Geophysical Research Letters. 21. 3023-3026 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] N.Hasebe, et al.: "Rapid recovery of anomalous cosmic ray flux at 1 AU in solar cycle 22" Geophysical Research Letters. 21. 3027-3030 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] S.Kokubun, et al.: "The GEOTAIL magnetic field experiment" Journal of Geomagnetism and Geoelectricity. 46. 7-21 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] L.A.Frank, et al.: "The Comprehensive Plasma Instrumentation (CPI) for the GEOTAIL spacecraft" Journal of Geomagnetism and Geoelectricity. 46. 23-37 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] D.J.Williams, et al.: "GEOTAIL energetic particles and ion composition instrument" Journal of Geomagnetism and Geoelectricity. 46. 39-57 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] H.Matsumoto, et al.: "Plasma wave observations with GEOTAIL spacecraft" Journal of Geomagnetism and Geoelectricity. 46. 59-95 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] T.Mukai, et al.: "The Low Energy Particle (LEP) experiment on board the GEOTAIL satellite" Journal of Geomagnetism and Geoelectricity. 46. 669-692 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] K.Tsuruda, et al.: "Electric field measurements on the GEOTAIL satellite" Journal of Geomagnetism and Geoelectricity. 46. 693-711 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] T.Doke, et al.: "The energetic particle spectrometer HEP onboard the GEOTAIL spacecraft" Journal of Geomagnetism and Geoelectricity. 46. 713-733 (1994)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] K.Tsuruda, et al.: "The boundary structure at the distant magnetotail lobe" Adov.Space Res. (in press) 1995.
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] N.Hasebe,H.Moriya,T.Doke,J.Kikuchi,T.Kashiwagi,S.Kataoka,T.Shino,K.Itsumi,T.Hayashi,T.Yanagimachi 他: "Improvement of Mass Resolution of Cosmic Ray Nuclei using a △EXE Si Detector Telescope" Nucl.Instr.and Methods. A325. 335-342 (1993)
• [Publications] T.Doke,M.Fujii,M.Fujimoto,K.Fujiki,T.Fukui,F.Gliem,A.Nishida 他: "The Energetic Particle Spectrometer HEP Onboard the GEOTAIL Spacecraft" JGG Special issue for GEOTAIL. (1993)
• [Publications] T.Doke,J.Kikuchi,T.Hayashi,T.Kashiwagi,T.Shino,K.Itsumi 他: "The GEOTAIL Energetic Isotope Telescope" J.Physics. (1993)
• [Publications] B.Wilken,K.Nagata,T.Doke,F.Gliem,W.Guettler,N.Hasebe 他: "The Energetic Particle Spectrometer HEP-LD Onboard the Japanese Tailprope GEOTAIL" J.Physics. (1993)
• [Publications] T.Doke,J.Kikuchi,T.Hayashi,T.Kashiwagi,T.Shino,K.Itsumi,他: "The GEOTAIL Energetic Particle Telescopes." 23rd Int.Cosmic Ray Conf.,Calgary. (1993)
• [Publications] A.Nishida,K.Uesugi,I.Nakatani,T.Mukai,D.H.Fairfield,M.H.Acuna: "Geotail Mission to Explore Earth′s Magnetotail" EOS,Transactions,American Geophysical Vnion. 73. (1992)
• [Publications] N.Hasebe,T.Doke,T.Kashiwagi,S.Kataoka,J.Kikuchi,H.Moriya,K.Nishijima,H.Crawford: "Position Linearity and Resolution of Large Position-Sensitive Silicon Detector With a Highly Uniform Thickness" Jpn.J.Applied Physics. 31. 1191-1193 (1992)
• [Publications] Y.Saito,T.Mukai,S.Machida,M.Hirahara,A.Nishida,T.Terasawa: "Rapid Variations of the Plasma Bulk Flow Direction Observed in the Plasma Sheet at XGSE〜-60Re" Geophysical Research Letters. 20. (1993)
• [Publications] S.Machida,T.Mukai,Y.Saito,M.Hirahara,T.Terasawa,T.Obara,K.Maezawa,A.Nishida: "Plasma Distribution Functions in the Earth Magnetotail(XGSE〜-42RE)at the time of the Magnetospheric Substorm:GEOTAIL/LEP Observation" Gephysical Research Letters. 20. (1993)
• [Publications] S.Kokubun,T.Yamamoto,M.H.Acuna,K.Hayashi,K.Shiokawa,H.Kawano: "The GEOTAIL Magnetic Field Experiment" J.Geomag.Geoelectr.45. (1993)
• [Publications] M.Hirahara,T.Mukai,S.Machida,Y.Saito,T.Terasawa,A.Nishida: "Angular Distribution of Oxygen Ions in the Plasma sheet at XGSE〜-60Re" Geophysical Research Letters. 20. (1993)
• [Publications] H.Matsumoto,I.Nagano,H.Kojima,R.R.Anderson,K.Hashimoto,T.Tsutsui T.Okada,I.Kimura,Y.Omura,M.Okada: "Plasma Wave Observations With the GEOTAIL Spacecraft" J.Geomag.Geoelectr.