Study on formation process of radiation belts through relativistic acceleration of electrons by whistler-mode waves

• Project/Area Number: 20340135
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Space and upper atmospheric physics
• Research Institution: Kyoto University
• Principal Investigator: OMURA Yoshiharu Kyoto University, 生存圏研究所, 教授 (50177002)
• Co-Investigator(Kenkyū-buntansha): KASAHARA Yoshiya 金沢大学, 総合メディア基盤センター, 准教授 (50243051)
• Co-Investigator(Renkei-kenkyūsha): USUI Hideyuki 神戸大学, 大学院・システム情報学研究科, 教授 (10243081)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000); Fiscal Year 2010: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000); Fiscal Year 2009: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000); Fiscal Year 2008: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
• Keywords: プラズマ波動 / 粒子加速 / ホイッスラーモード波 / 電磁イオンサイクロトロン波 / コーラス / 相対論効果 / シミュレーション / 国際情報交換 / カナダ:イギリス / 非線形波動粒子相互作 / 放射線帯 / カナダ:アメリカ:チェコ:フランス / 磁気圏・電離圏 / 宇宙科学 / 超高層物理学 / 地球電磁気

Research Abstract

Chorus emissions are electromagnetic waves with rising-tone frequencies observed in the Earth's magnetosphere. Computer simulations of the wave-particle interaction show that waves grow to form coherent large amplitude waves, causing electron precipitation to the atmosphere. A fraction of the resonant electrons are accelerated to relativistic energy in a short time scale of a few hours. Generation of chorus emissions is a key process of radiation belt formation.

Research Products

• [Journal Article] 編隊飛行衛星による連携観測模擬実験システムの開発 (2011)
  • Author(s): 竹中悟, 笠原禎也, 小嶋浩嗣, 井町智彦
  • Journal Title: 電子情報通信学会論文誌 J94-B(7)(印刷中)
  • NAID: 110008001397
  • Peer Reviewed
• [Journal Article] 編隊飛行衛星による連携観測模擬実験システムの開発 (2011)
  • Author(s): 竹中悟, 笠原禎也, 小嶋浩嗣, 井町智彦
  • Journal Title: 電子情報通信学会論文誌 Volume: J94-B(7)(印刷中)
  • NAID: 110008001397
  • Peer Reviewed
• [Journal Article] Triggering Process of whistler-mode chorus emissions in the magnetosphere (2011)
  • Author(s): Yoshiharu Omura, David Nunn
  • Journal Title: Journal of Geophysical Research Volume: (印刷中)
  • NAID: 120003163662
  • Peer Reviewed
• [Journal Article] Simulation of Electromagnetic Ion Cyclotron Triggered Emissions in the Earth's Inner Magnetosphere (2011)
  • Author(s): Masafumi Shoji, Yoshiharu Omura
  • Journal Title: Journal of Geophysical Research Volume: (印刷中)
  • Peer Reviewed
• [Journal Article] Amplitude dependence of frequency sweep rates of whistler-mode chorusemissions (2011)
  • Author(s): Yuto Katoh, Yoshiharu Omura
  • Journal Title: Journal of Geophysical Research Volume: (印刷中)
  • Peer Reviewed
• [Journal Article] Simultaneous ground-based and satellite observations of natural VLF waves in Antarctica : A case study of downward ionospheric penetration of whistler-mode waves (2010)
  • Author(s): M.Ozaki, S.Yagitani, I.Nagano, Y.Kasahara, H.Yamagishi, N.Sato, A.Kadokura
  • Journal Title: Polar Science(doi:10.1016/j.polar) 4(3) Pages: 431-441
  • Peer Reviewed
• [Journal Article] Self-consistent particle simulation of whistler mode triggered emissions (2010)
  • Author(s): M.Hikishima, Y.Omura, D.Summers
  • Journal Title: JOURNAL OF GEOPHYSICAL RESEARCH(doi : 10.1029/2010JA015860) VOL.115
  • Peer Reviewed
• [Journal Article] Theory and observation of electromagnetic ion cyclotron triggeredemissions in the magnetosphere (2010)
  • Author(s): Y.Omura, J.Pickett, B.Grison, O.Santolik, I.Dandouras, M.Engebretson, P.M.E.Decreau, A.Masson
  • Journal Title: JOURNAL OF GEOPHYSICAL RESEARC(doi : 10.1029/2010JA015300) VOL.115
  • Peer Reviewed
• [Journal Article] Cluster observations of EMIC triggered emissions in association with Pc1 waves near Earth's plasmapause (2010)
  • Author(s): J.S.Pickett, B.Grison, Y.Omura, M.J.Engebretson, I.Dandouras, A.Masson, M.L.Adrian, O.Santolik, P.M.E. Decreau, N.Cornilleau-Wehrlin, D.Constantinescu
  • Journal Title: Geophysical Research Letters(doi : 10.1029/2010GL042648) VOL.37
  • Peer Reviewed
• [Journal Article] Similar Data Retrieval from Enormous Datasets on ELF/VLF Wave Spectrum Observed by Akebono (2010)
  • Author(s): Y.Kasahara, A.Hirano, Y.Takata
  • Journal Title: Data Science Journal(doi : 10.2481/dsj.SS_IGY-002) Vol.8
  • Peer Reviewed
• [Journal Article] Microburst precipitation of energetic electrons associated with choruswave generation (2010)
  • Author(s): M.Hikishima, Y.Omura, Danny Summers
  • Journal Title: Geophysical Research Letters(doi : 10.1029/2010GL042678) VOL.37
  • Peer Reviewed
• [Journal Article] Effect of the solar wind proton entry into the deepest lunar wake (2010)
  • Author(s): M.N.Nishino, M.Fujimoto, Y.Saito, Y.Yokota, Y.Kasahara, Y.Omura, Y.Goto, K.Hashimoto, A.Kumamoto, T.Ono, H.Tsunakawa, M.Matsushima, F.Takahashi, H.Shibuya, H.Shimizu, T.Terasawa
  • Journal Title: Geophys.Res Lett. Volume: 37(L12106)
  • Peer Reviewed
• [Journal Article] The Lunar Radar Sounder (LRS) Onboard the KAGUYA (SELENE) Spacecraft (2010)
  • Author(s): T.Ono, A.Kumamoto, Y.Kasahara, Y.Yamaguchi, A.Yamaji, T.Kobayashi, S.Oshigami, H.Nakagawa, Y.Goto, K.Hashimoto, Y.Omura, T.Imachi, H. Matsumoto, H.Oya
  • Journal Title: Space Science Reviews Volume: 154(1-4) Pages: 145-192
  • Peer Reviewed
• [Journal Article] Electrostatic solitary waves associated with magnetic anomalies and wake boundary of the Moon observed by KAGUYA (2010)
  • Author(s): K.Hashimoto, M.Hashitani, Y.Kasahara, Y.Omura, M.N.Nishino, Y.Saito, Y.Yokota, T.Ono, H.Tsunakawa, H.Shibuya, M.Matsushima, H.Shimizu, F.Takahashi
  • Journal Title: Geophys.Res Lett. Volume: 37(L19204)
  • Peer Reviewed
• [Journal Article] Simultaneous ground-based and satellite observations of natural VLF waves in Antarctica : A case study of downward ionospheric penetration of whistler-mode waves (2010)
  • Author(s): M.Ozaki, S.Yagitani, I.Nagano, Y.Kasahara, H.Yamagishi, N.Sato, A.Kadokura
  • Journal Title: Polar Science Volume: 4(3) Pages: 431-441
  • Peer Reviewed
• [Journal Article] Lunar Ionosphere Exploration Method Using Auroral Kilometric Radiation (2010)
  • Author(s): Y.Goto, T.Fujimoto, Y.Kasahara, A.Kumamoto, T.Ono
  • Journal Title: Earth, Planets and Space Volume: 63(1) Pages: 47-56
  • NAID: 10028225572
  • Peer Reviewed
• [Journal Article] Self-consistent Particle simulation of whistler mode triggered emissions (2010)
  • Author(s): Mitsuru Hikishima, Yoshiharu Omura, Danny Summers
  • Journal Title: JOURNAL OF GEOPHYSICAL RESEARCH Volume: 115, A12246
  • Peer Reviewed
• [Journal Article] Similar Data Retrieval from Enormous Datasets on ELF/VLF Wave Spectrum Observed by Akebono (2010)
  • Author(s): Y.Kasahara, A.Hirano, Y.Takata
  • Journal Title: Data Science Journal Volume: IGY66-IGY75,Vol.8
  • Peer Reviewed
• [Journal Article] Microburst precipitation of energetic electrons associated with chorus wave generation (2010)
  • Author(s): Mitsuru Hikishima, Yoshiharu Omura, Danny Summers
  • Journal Title: Geophysical Research Letters Volume: 37,L07103
  • Peer Reviewed
• [Journal Article] Cluster observations of EMIC triggered emissions in association with Pc1 waves near Earth's plasmapause (2010)
  • Author(s): J.S.Pickett, B.Grison, Y.Omura, M.J.Engebretson, I.Dandouras, A.Masson, M.L.Adrian, O.Santolik, P.M.E.Decreau, N.Cornilleau-Wehrlin, D.Constantinescu
  • Journal Title: Geophysical Research Letters Volume: 37,L09104
  • Peer Reviewed
• [Journal Article] Theory and observation of electromagnetic ion cyclotron triggeredemissions in the magnetosphere (2010)
  • Author(s): Yoshiharu Omura, Jolene Pickett, Benjamin Grison, Ondrej Santolik, Iannis Dandouras, Mark Engebretson, Pierrette M.E.Decreau, Arnaud Masson
  • Journal Title: JOURNAL OF GEOPHYSICAL RESEARCH Volume: 115,A07234
  • Peer Reviewed
• [Journal Article] Coherent nonlinear scattering of energetic electrons in the process ofwhistler-mode chorus generation (2009)
  • Author(s): M.Hikishima, S.Yagitani, Y.Omura, I.Nagano
  • Journal Title: Journal of Geophysical Research(doi : 10.1029/2009JA014371)
  • Peer Reviewed
• [Journal Article] Nonlinear mechanisms of lower band and upper band VLF chorus emissionsin the magnetosphere (2009)
  • Author(s): Y.Omura, M. Hikishima, Y.Katoh, D.Summers, S.Yagitani
  • Journal Title: Journal Geophysical Research(doi : 10.1029/2009JA014206)
  • Peer Reviewed
• [Journal Article] Properties of dayside nonlinear rising tone emissions at large Lobserved by GEOTAIL (2009)
  • Author(s): O.P.Verkhoglyadova, B.T.Tsurutani, Y.Omura, S.Yagitani
  • Journal Title: Earth Planets Space 61 Pages: 625-628
  • Peer Reviewed
• [Journal Article] Simultaneous Satellite Observations of VLF Chorus, Hot and Relativistic Electrons in a Magnetic Storm "Recovery" Phase (2009)
  • Author(s): Y.Kasahara, Y.Miyoshi, Y.Omura, O.P.Verkhoglyadova, I.Nagano, I.Kimura, B.T.Tsurutani
  • Journal Title: Geophysical Research Letters(doi : 10.1029/2008GL036454) 36
  • Peer Reviewed
• [Journal Article] Full particle simulation of whistler-mode rising 1 chorus emissions in the magnetosphere (2009)
  • Author(s): M.Hikishima, S.Yagitani, Y.Omura, I.Nagano
  • Journal Title: Journal of Geophysical Research(doi : 10.1029/2008JA013625) 114
  • Peer Reviewed
• [Journal Article] Properties of dayside nonlinear rising tone emissions at large Lobserved by GEOTAIL (2009)
  • Author(s): O.P.Verkhoglyadova, B.T.Tsurutani, Y.Omura, S.Yagitani
  • Journal Title: Earth Planets Space Volume: 61 Pages: 625-628
  • Peer Reviewed
• [Journal Article] Nonlinear mechanisms of lower band and upper band VLF chorus emissions in the magnetosphere (2009)
  • Author(s): Y.Omura,, M.Hikishima, Y.Katoh, D.Summers, S.
  • Journal Title: Journal Geophysical Research Volume: 114
  • NAID: 120005373197
  • Peer Reviewed
• [Journal Article] Coherent nonlinear scattering of energetic electrons in the process ofwhistler-mode chorus generation (2009)
  • Author(s): M.Hikishima, S.Yagitani, Y.Omura, I.Nagano
  • Journal Title: Journal of Geophysical Research Volume: 114,A10205
  • Peer Reviewed
• [Journal Article] Full particle simulation of whistler-mode rising lchorus emissions in the magnetosphere (2009)
  • Author(s): M. Hikishima, S. Yagitani, Y. Omura, I. Nagano
  • Journal Title: Journal of Geophysical Research 114, A01203
  • Peer Reviewed
• [Journal Article] Simultaneous Satellite Observations of VLF Chorus, Hot and Relativistic Electrons in a Magnetic Storm "Recovery" Phase (2009)
  • Author(s): I. Kasahara, Y. Miyoshi, Y. Omura, O. P. Verkhoglyadova, I. Nagano, I. Kimura, B. T. Tsurutani
  • Journal Title: Geophysical Research Letters 36, L01106
  • Peer Reviewed
• [Journal Article] Rapid energization of radiation belt electrons by nonlinear wave trapping (2008)
  • Author(s): Y.Katoh, Y.Omura, D.Summers
  • Journal Title: Ann.Geophys. 26 Pages: 3451-3456
  • Peer Reviewed
• [Journal Article] Relativistic turning acceleration of radiation belt electrons by whistler mode chorus (2008)
  • Author(s): N.Furuya, Y.Omura, D.Summer
  • Journal Title: Journal of Geophysical Research 113
  • Peer Reviewed
• [Journal Article] Theory and simulation of the generation of whistler-mode chorus (2008)
  • Author(s): Y.Omura, Y.Katoh, D.Summers
  • Journal Title: Journal of Geophysical Research(doi : 10.1029/2007JA012622) 113
  • Peer Reviewed
• [Journal Article] Theory and simulation of the generation of whistler-mode chorus (2008)
  • Author(s): Y. Omura, Y. Katoh, D. Summers
  • Journal Title: Journal of Geophysical Research 113, A04223
  • Peer Reviewed
• [Journal Article] Relativistic turning acceleration of radiation belt electrons by whistler mode chorus (2008)
  • Author(s): N. Furuya, Y. Omura, D. Summers
  • Journal Title: Journal of Geophysical Research 113, A04224
  • Peer Reviewed
• [Journal Article] Rapid energization of radiation belt electrons by nonlinear wave trapping (2008)
  • Author(s): Y. Katoh, Y. Omura, D. Summers
  • Journal Title: Ann. Geophys. 26 Pages: 3451-3456
  • Peer Reviewed
• [Journal Article] Amplitude dependence of frequency sweep rates of whistler-mode chorusemissions
  • Author(s): Y.Katoh Y.Omura
  • Journal Title: Journal of Geophysical Research in press
  • Peer Reviewed
• [Journal Article] Simulation of Electromagnetic Ion Cyclotron Triggered Emissions in the Earth's Inner Magnetosphere
  • Author(s): M.Shoji, Y.Omura
  • Journal Title: Journal of Geophysical Research in press
  • Peer Reviewed
• [Journal Article] Triggering process of whistler-mode chorus emissions in the magnetosphere
  • Author(s): Y.Omura, D.Nunn
  • Journal Title: Journal of Geophysical Research in press
  • NAID: 120003163662
  • Peer Reviewed
• [Presentation] Plasma Waves Related to Solar Wind-Moon Interaction Observed by WFC onboard KAGUYA (2010)
  • Author(s): Y.Kasahara, S.Kitaguchi, K.Kanatani, Y.Goto, K.Hashimoto, Y.Omura, A.Kumamoto, T.Ono, M.N.Nishino, Y.Saito, H.Tsunakawa
  • Organizer: American Geophysical Union 2010 Fall Meeting
  • Place of Presentation: Moscone Center (U.S.A.)
  • Year and Date: 2010-12-13
• [Presentation] Lunar Wake Structure and its Electron Density Profile in the Solar Wind Observed by KAGUYA LRS/WFC (2010)
  • Author(s): Y.Kasahara, A.Muro, K.Kanatani, Y.Goto, K.Hashimoto, Y.Omura, A.Kumamoto, T.Ono, H.Tsunakawa
  • Organizer: アジア太平洋電波科学会議(AP-RASC'10)
  • Place of Presentation: 富山国際会議場
  • Year and Date: 2010-09-24
• [Presentation] Modeling of the Plasmaspheric Density Profile from Large Datasets of VLF Waves and GPS Signals. (2010)
  • Author(s): Y.Goto, Y.Kasahara, S.Hayashi, T.Ide
  • Organizer: アジア太平洋電波科学会議(AP-RASC'10)
  • Place of Presentation: 富山国際会議場
  • Year and Date: 2010-09-23
• [Presentation] ダイポール磁場中における電磁イオンサイクロトロンコーラス放射のハイブリッドシミュレーション (2010)
  • Author(s): 小路真史、大村善治
  • Organizer: 日本地球惑星科学連合2010年大会
  • Place of Presentation: 幕張メッセ国際会議場
  • Year and Date: 2010-05-26
• [Presentation] 磁気圏におけるホイッスラーモード波およびEMIC波のコーラス放射の非線形理論 P-EM021(宇宙天気) (2010)
  • Author(s): 大村善治
  • Organizer: 日本地球惑星科学連合2010年大会
  • Place of Presentation: 幕張メッセ国際会議場
  • Year and Date: 2010-05-25
• [Presentation] 磁気圏におけるホイッスラーモード波およびEMIC波のコーラス放射の非線形理論P-EM021(宇宙天気) (2010)
  • Author(s): 大村善治
  • Organizer: 日本地球惑星科学連合2010年大会
  • Place of Presentation: 幕張メッセ国際会議場
  • Year and Date: 2010-05-25
• [Presentation] コーラスの発生における放射線帯粒子降下 (2010)
  • Author(s): 疋島充、大村善治、Summers Danny
  • Organizer: 日本地球惑星科学連合2010年大会
  • Place of Presentation: 幕張メッセ国際会議場
  • Year and Date: 2010-05-24
• [Presentation] ホイッスラーモード・コーラス放射による相対論的電子加速P-EM028 (3学会合同プラズマ宇宙物理-1) (2010)
  • Author(s): 大村善治
  • Organizer: 日本地球惑星科学連合2010年大会
  • Place of Presentation: 幕張メッセ国際会議場
  • Year and Date: 2010-05-23
• [Presentation] ホイッスラーモード・コーラス放射による相対論的電子加速P-EM028(3学会合同プラズマ宇宙物理-1) (2010)
  • Author(s): 大村善治
  • Organizer: 日本地球惑星科学連合2010年大会
  • Place of Presentation: 幕張メッセ国際会議場(招待講演)
  • Year and Date: 2010-05-23
• [Presentation] Bipolar-pulses observed by the LRS/WFC-L onboard KAGUYA-Plausible evidence of lunar dust impact- (2010)
  • Author(s): Y.Kasahara, H.Horie, K.Hashimoto, Y.Omura, Y.Goto, A.Kumamoto, T.Ono, H.Tsunakawa, LRS/WFC team, MAP/LMAG team
  • Organizer: European Geosciences Union General Assembly 2010
  • Place of Presentation: Austria Center Vienna (Austria)
  • Year and Date: 2010-05-04
• [Presentation] Theory and Simulations on Whistler-mode and EMIC Triggered Emissions (2010)
  • Author(s): 大村善治
  • Organizer: AGU Fall Meeting 2010
  • Place of Presentation: San Francisco, USA
• [Presentation] Theory and Observation of Electromagnetic Ion Cyclotron Triggered Emissions in the Magnetosphere (2010)
  • Author(s): Y.Omura, J.Pickett, B.Grison, O.Santolik, I.Dandouras, M.Engebretson, P.M.E.Decreau
  • Organizer: AP-RASC'10
  • Place of Presentation: Toyama, Japan
• [Presentation] Plasma Waves and High Energy Particles in the Earth's Radiation Belts (2010)
  • Author(s): 大村善治
  • Organizer: AP-RASC'10
  • Place of Presentation: Toyama, Japan
• [Presentation] Theory and Simulations of VLF Triggered Emissions (2010)
  • Author(s): Y.Omura,, M.Hikishima, D.Summers
  • Organizer: 4th VERSIM Workshop
  • Place of Presentation: Prague, Czech
• [Presentation] Theory and Simulations of Whistler-Mode Chorus Emissions in the Magnetosphere (Session H) (2010)
  • Author(s): 大村善治
  • Organizer: ISRSSP 2010
  • Place of Presentation: Sofia, Bulgaria
• [Presentation] Theory and Simulations of VLF Chorus Emissions (2010)
  • Author(s): 大村善治
  • Organizer: 7th AOGS Meeting
  • Place of Presentation: Hyderabad, India
• [Presentation] Theory and Observation of Electromagnetic Ion Cyclotron Triggered Emissions in the Magnetosphere (2010)
  • Author(s): Yoshiharu Omura, Jolene Pickett, Benjamin Grison, et al.
  • Organizer: 7th AOGS Meeting
  • Place of Presentation: Hyderabad, India
• [Presentation] Theory and observation of electromagnetic ion cyclotron chorus emissions in the magnetosphere (2010)
  • Author(s): Omura Y., Pickett, J., Grison, B., Santolik, O., Dandouras, I., Engebretson, M., Decreau, P M., Masson, A.
  • Organizer: Western Pacific Geophysics Meeting 2010
  • Place of Presentation: 台北(台湾)
• [Presentation] Nonlinear Wave Growth Effects on the Limit of Stably-Trapped Particle Fluxes (2010)
  • Author(s): Summers, D, Tang R, Omura, Y
  • Organizer: Western Pacific Geophysics Meeting 2010
  • Place of Presentation: 台北 (台湾)
• [Presentation] Simulation study of nonlinear wave growth of whistler-mode waves in an inhomogeneous magnetic field (2010)
  • Author(s): Katoh, Y, Omura, Y
  • Organizer: Western Pacific Geophysics Meeting 2010
  • Place of Presentation: 台北 (台湾)
• [Presentation] Nonlinear saturation of cyclotron maser instability associated with energetic ring-beam electrons (2010)
  • Author(s): Lee, K, Omura, Y, Lee, L, Wu, C
  • Organizer: Western Pacific Geophysics Meeting 2010
  • Place of Presentation: 台北 (台湾)
• [Presentation] Theory and observation of electromagnetic ion cyclotron chorus emissions in the magnetosphere (2010)
  • Author(s): Omura, Y, Pickett, J, Grison, B, Santolik, O, Dandouras, I, Engebretson, M, Decreau, P M, Masson, A
  • Organizer: Western Pacific Geophysics Meeting 2010
  • Place of Presentation: 台北 (台湾)(招待講演)
• [Presentation] Cross-energy coupling seen from whistler-mode wave-particle interactions in the inner magnetosphere (2010)
  • Author(s): Katoh, Y, Omura, Y
  • Organizer: Western Pacific Geophysics Meeting 2010
  • Place of Presentation: 台北 (台湾)(招待講演)
• [Presentation] Effect of solar wind proton entry into the lunar wake (2010)
  • Author(s): Nishino, M N, Fujimoto, M, Saito, Y, Yokota, S, Kasahara, Y, Omura, Y, Goto, Y, Hashimoto, K, Kumamoto, A, Ono, T, Tsunakawa, H, Matsushima, M, Takahashi, F, Shibuya, H, Shimizu, H, Terasawa, T
  • Organizer: Western Pacific Geophysics Meeting 2010
  • Place of Presentation: 台北 (台湾)(招待講演)
• [Presentation] Theory and Simulations of VLF Chorus Emissions (2010)
  • Author(s): Yoshiharu Omura
  • Organizer: 7th AOGS Meeting
  • Place of Presentation: Hyderabad, India(招待講演)
• [Presentation] Lou-Chuang Lee, Mirror-mode Structures in the Magnetosheath : 3D Hybrid Results (2010)
  • Author(s): Masafumi Shoji, Yoshiharu Omura
  • Organizer: 7th AOGS Meeting
  • Place of Presentation: Hyderabad, India(招待講演)
• [Presentation] Theory and Simulations of Whistler-Mode Chorus Emissions in the Magnetosphere(Session H) (2010)
  • Author(s): Yoshiharu Omura
  • Organizer: ISRSSP 2010
  • Place of Presentation: Sofia, Buigaria(招待講演)
• [Presentation] Theory and Simulations of VLF Triggered Emissions (2010)
  • Author(s): Yoshiharu Omura, Mitsuru Hikishima, Danny Summers
  • Organizer: 4th VERSIM Workshop
  • Place of Presentation: Prague, Czech(招待講演)
• [Presentation] Plasma Waves and High Energy particles in the Earth's Radiation Belts (2010)
  • Author(s): Y.Omura
  • Organizer: AP-RASC'10
  • Place of Presentation: Toyama, Japan(招待講演)
• [Presentation] Electron Hybrid Simulation of Nonlinear Growth of Whistler-Mode Waves in the Equatorial Region of the Inner Magnetosphere (2010)
  • Author(s): Y.Katoh, Y.Omura
  • Organizer: AP-RASC'10
  • Place of Presentation: Toyama, Japan(招待講演)
• [Presentation] Theory and Observation of Electromagnetic Ion Cyclotron Triggered Emissions in the Magnetosphere (2010)
  • Author(s): Y.Omura, J.Pickett, B.Grison, O.Santolik, I.Dandouras, M.Engebretson, P.M.E.Decreau
  • Organizer: AP-RASC'10
  • Place of Presentation: Toyama, Japan(招待講演)
• [Presentation] Theory and Simulations on Whistler-mode and EMIC Triggered Emissions (2010)
  • Author(s): Y.Omura
  • Organizer: AGU Fall Meeting 2010
  • Place of Presentation: San Francisco, USA(招待講演)
• [Presentation] 太陽風流れの接触面通過時の内部磁気圏ホイッスラーモード波動の変化について (2009)
  • Author(s): 三好由純, 片岡龍峰, 笠原禎也
  • Organizer: 第126回 地球電磁気・地球惑星圏学会 総会・講演会(2009年 秋学会)
  • Place of Presentation: 金沢大学
  • Year and Date: 2009-09-30
• [Presentation] かぐやLRS/WFCで観測された月ウェイク境界領域の電子密度分布の非対称性 (2009)
  • Author(s): 笠原禎也, 室晶彦, 後藤由貴, 西野真木, 橋本弘藏, 大村善治, 熊本篤志, 小野高幸, 綱川秀夫, LRS開発チーム, かぐやMAP-LMAG班
  • Organizer: 第126回 地球電磁気・地球惑星圏学会 総会・講演会(2009年 秋学会)
  • Place of Presentation: 金沢大学
  • Year and Date: 2009-09-28
• [Presentation] Feasibility of lunar ionosphere exploration using low frequency wave reflection (2009)
  • Author(s): Y.Goto, T.Fujimoto, Y.Kasahara, A.Kumamoto, T.Ono
  • Organizer: Asia Oceania Geosciences Society
  • Place of Presentation: Singapore
  • Year and Date: 2009-08-14
• [Presentation] Nonlinear Wave-Particle Interactions in the Magnetosphere (基調講演) (2009)
  • Author(s): 大村善治
  • Organizer: Asia Oceania Geosciences Society
  • Place of Presentation: Singapore
  • Year and Date: 2009-08-12
• [Presentation] Nonlinear Wave-Particle Interactions in the Magnetosphere (2009)
  • Author(s): Yoshiharu Omura
  • Organizer: Asia Oceania Geosciences Society
  • Place of Presentation: Singapore(基調講演)
  • Year and Date: 2009-08-12
• [Presentation] Electron Plasma Wave and Electron Density Profile Around the Moon Observed by KAGUYA LRS/WFC (2009)
  • Author(s): Y.KASAHARA, A.MURO, Y.GOTO, K.HASHIMOTO, Y.OMURA, A.KUMAMOTO, T.ONO, H.TSUNAKAWA, LRS/WFC team, MAP/LMAG team
  • Organizer: Asia Oceania Geosciences Society
  • Place of Presentation: Suntec Singapore(シンガポール)
  • Year and Date: 2009-08-12
• [Presentation] Electromagnetic particle simulations of whistler-mode chorus emissions (2009)
  • Author(s): Y. Omura, M.Hikishima, Y.Katoh
  • Organizer: 2009 Conference on Computational Physics (CCP 2009)
  • Place of Presentation: Kaohsiung, Taiwan
• [Presentation] Theory and simulations of nonlinear whistler-mode chorus waves in the radiation belts (2009)
  • Author(s): 大村善治
  • Organizer: WCU International Workshop
  • Place of Presentation: Jeju, Korea
• [Presentation] 磁気赤道域における上側周波数帯コーラス放射の発生機構 (2009)
  • Author(s): 大村善治, 疋島充, 加藤雄人, Summers Danny, 八木谷聡
  • Organizer: 第126回地球電磁気・地球惑星圏学会総会・講演会(2009年秋学会)
  • Place of Presentation: 金沢大学
• [Presentation] Nonlinear Mechanisms of lower band and upper band VLF (2009)
  • Author(s): Y.Omura, M.Hikishima, Y.Katoh, D.Summers, S.Yagitani
  • Organizer: 11th Scientific Assembly of International Association of Geomagnetism and Aeronomy
  • Place of Presentation: Sopron, Hungary
• [Presentation] Nonlinear Mechanisms of Lower Band and Upper Band VLF Chorus Emissions in the Magnetosphere (2009)
  • Author(s): Y.OMURA, M.HIKISHIMA, Y.KATOH, D.SUMMERS, S.YAGITANI
  • Organizer: Asia Oceania Geosciences Society, Asia Oceania Geosciences Society
  • Place of Presentation: Singapore
• [Presentation] Theory and simulations of nonlinear whistler-mode chorus waves in the magnetosphere、Modern Challenges in Nonlinear Plasma Physics (2009)
  • Author(s): 大村善治
  • Organizer: A Conference honoring the Career of Dennis Papadopoulos
  • Place of Presentation: Sani Resort, Halkidiki, Macedonia, Greece
• [Presentation] Nonlinear particle dynamics associated with electrostatic solitary waves and whistler-mode chorus emissions in the magnetosphere (2009)
  • Author(s): 大村善治
  • Organizer: 17th Cluster Workshop
  • Place of Presentation: Uppsala, Sweden
• [Presentation] Theory and simulations of nonlinear whistler-mode chorus waves in the magnetosphere (2009)
  • Author(s): Y.Omura
  • Organizer: Modern Challenges in Nonlinear Plasma Physics, A Conference honoring the Career of Dennis Papadopoulos
  • Place of Presentation: Sani Resort, Halkidiki, Macedonia, Greece
• [Presentation] Nonlinear Mechanisms of Lower Band and Upper Band VLF Chorus Emissions in the Magnetosphere (2009)
  • Author(s): Y.OMURA, M.HIKISHIMA, Y.KATOH, D.SUMMERS, S.YAGITANI
  • Organizer: Asia Oceania Geosciences Society
  • Place of Presentation: Singapore
• [Presentation] Coalescence of Mirror Mode Structures : Nonlinear Particle Motion in the Magnetic Structures (2009)
  • Author(s): M.SHOJI, Y.OMURA
  • Organizer: Asia Oceania Geosciences Society
  • Place of Presentation: Singapore
• [Presentation] Amplitude Dependence of Frequency Sweep-Rate of Whistler-Mode Chorus Emissions (2009)
  • Author(s): Y.KATOH, Y.OMURA
  • Organizer: Asia Oceania Geosciences Society
  • Place of Presentation: Suntec Singapore(シンガポール)
• [Presentation] Coherent Nonlinear Scattering of Energetic Electrons in the Process of Whistler-Mode Chorus Generation (2009)
  • Author(s): M.HIKISHIMA, S.YAGITANI, Y.OMURA, I.NAGANO
  • Organizer: Asia Oceania Geosciences Society
  • Place of Presentation: Suntec Singapore(シンガポール)
• [Presentation] Nonlinear Evolution of Mirror Mode Structures (2009)
  • Author(s): Masafumi Shoji ; Yoshiharu Omura
  • Organizer: 第126回 地球電磁気・地球惑星圏学会 総会・講演会(2009年 秋学会)
  • Place of Presentation: 金沢大学
• [Presentation] 磁気赤道域における上側周波数帯コーラス放射の発生機構 (2009)
  • Author(s): 大村善治; 疋島充; 加藤雄人; Summers Danny; 八木谷聡
  • Organizer: 第126回 地球電磁気・地球惑星圏学会 総会・講演会(2009年 秋学会)
  • Place of Presentation: 金沢大学
• [Presentation] Study of the threshold of wave amplitude in generating chorus emissions (2009)
  • Author(s): Y.Katoh, Y.Omura
  • Organizer: 第126回 地球電磁気・地球惑星圏学会 総会・講演会(2009年 秋学会)
  • Place of Presentation: 金沢大学
• [Presentation] かぐや衛星で観測される静電孤立波(ESW)に関する研究 (2009)
  • Author(s): 橋谷真紀; 橋本弘藏; 大村善治; 笠原禎也; 小嶋浩嗣; 綱川秀夫
  • Organizer: 第126回 地球電磁気・地球惑星圏学会 総会・講演会(2009年 秋学会)
  • Place of Presentation: 金沢大学
• [Presentation] A nonlinear kinetic theory of self-sustaining whistler-mode wave emissions in the inner magnetosphere (2008)
  • Author(s): Y.Omura, M.Hikishima, Y.Katoh, D.Summers, S.Yagitani
  • Organizer: American Geophysical Union (AGU) 2008 Fall Meeting
  • Place of Presentation: San Francisco, USA
• [Presentation] 磁気圏におけるホイッスラーモード・コーラス放射の励起機構 (2008)
  • Author(s): 大村善治, 疋島充, 加藤雄人, Summers Danny, 八木谷聡
  • Organizer: 地球電磁気・地球惑星圏学会第124回総会・講演会
  • Place of Presentation: Sendai, Japan
• [Presentation] Relativistic electron acceleration by whistler-mode chorus emissions (2008)
  • Author(s): 大村善治
  • Organizer: 3rd VERSIM Workshop 2008
  • Place of Presentation: Tihany, Hungary
• [Presentation] Theory and simulation of the generation of whistler-mode chorus emissions (2008)
  • Author(s): 大村善治
  • Organizer: 3rd VERSIM Workshop 2008
  • Place of Presentation: Tihany, Hungary
• [Presentation] Relativistic electron acceleration by whistlermode chorus emissions in radiation belts (2008)
  • Author(s): Y.Omura, D.Summers
  • Organizer: Relativistic electron acceleration by whistlermode chorus emissions in radiation belts
  • Place of Presentation: Chicago, USA
• [Presentation] Nonlinear wave growth theory of whistler-mode chorus emissions (2008)
  • Author(s): Y.Omura, Y.Katoh, D.Summers
  • Organizer: URSI XXIXth General Assembly
  • Place of Presentation: Chicago, USA
• [Presentation] Rapid energization of relativistic electrons by nonlinear wave trapping (2008)
  • Author(s): Y.Katoh, Y.Omura, D.Summers
  • Place of Presentation: Montreal, Canada
• [Presentation] Relativistic electron acceleration by whistler-mode chorus emissions associated with substorms (2008)
  • Author(s): 大村善治
  • Place of Presentation: Montreal, Canada
• [Presentation] Nonlinear wave growth theory of whistler-mode chorus emissions induced by substorms (2008)
  • Author(s): 大村善治
  • Organizer: 37th Committee on Space Research(COSPAR) Scientific Assembly
  • Place of Presentation: Montreal, Canada
• [Presentation] Relativistic Electron Acceleration by Whistler-mode Chorus Emissions Associated with Substorms (2008)
  • Author(s): Y.Omura, D.Summers
  • Organizer: Asia Oceania Geosciences Society (AOGS) 2008
  • Place of Presentation: Busan, Korea
• [Presentation] Theory and simulation of the generation of whistler-mode chorus (2008)
  • Author(s): Y.Omura, Y.Kato, D.Summers
  • Organizer: Japan Geoscience Union Meeting 2008
  • Place of Presentation: Makuhari, Japan
• [Presentation] Theory and simulation of the generation of whistler mode chorus (2008)
  • Author(s): 大村善治
  • Organizer: The Seventh International Workshop on Nonlinear Waves and Turbulence in Space Plasmas (NLW-7)
  • Place of Presentation: Beaulieu, FRANCE
• [Presentation] Relativistic Electron Acceleration by Whistler-mode Chorus Emissions Associated with Substorms (2008)
  • Author(s): Y. Omura, D. Summers
  • Organizer: Asia Oceania Geosciences Society (AOGS)2008
  • Place of Presentation: Busan, Korea
• [Presentation] Nonlinear wave growth theory of whistler-mode chorus emissions induced by substorms (2008)
  • Author(s): Y. Omura
  • Organizer: 37th Committee on Space Research(COSPAR)
  • Place of Presentation: Montreal, Canada
• [Presentation] Relativistic electron acceleration by whistler-mode chorus emissions associated with substorms (2008)
  • Author(s): Y. Omura
  • Organizer: 37th Committee on space Research(COSPAR)
  • Place of Presentation: Montreal, Canada
• [Presentation] Rapid energization of relativistic electrons by nonlinear wave trapping (2008)
  • Author(s): Y. Katoh, Y. Omura, D. Summers
  • Organizer: 37th Committee on Space Research(COSPAR)
  • Place of Presentation: Montreal, Canada
• [Presentation] Ultra-relativistic acceleration of radiation belt electrons (2008)
  • Author(s): D. Summers, Y. Omura
  • Organizer: 37th Committee on Space Research(COSPAR)
  • Place of Presentation: Montreal, Canada
• [Presentation] Theoretical Study of Wave Particle Correlation〉Measurement via 1-D Electromagnetic Particle Simulation (2008)
  • Author(s): Y. Ueda, Y. Omura, H. Kojima
  • Organizer: 37th Committee on space Research(COSPAR)
  • Place of Presentation: Montreal, Canada
• [Presentation] Electron hybrid simulation of whistler-mode chorus generation in the earth's inner magnetosphere (2008)
  • Author(s): Y. Katohl, Y. Omura
  • Organizer: URSI XXIXth General Assembly
  • Place of Presentation: Chicago, USA
• [Presentation] Nonlinear wave growth theory of whistler-mode choru semissions (2008)
  • Author(s): Y. Omura, Y. Katoh, D. Summers
  • Organizer: URSI XXIXth General Assembly
  • Place of Presentation: Chicago, USA
• [Presentation] Ultra-relativistic acceleration of radiation belt electrons (2008)
  • Author(s): D. Summers, Y. Omura
  • Organizer: URSI XXIXth General Assembly
  • Place of Presentation: Chicago, USA
• [Presentation] Relativistic electron acceleration by whistlermode chorus emissions in radiation belts (2008)
  • Author(s): Y. Omura, D. Summers
  • Organizer: URSI XXIXth General Assembly
  • Place of Presentation: Chicago, USA
• [Presentation] Study of the Characteristics of Whistler-mode Chorus Generation in the Earth's Magnetosphere by Electron (2008)
  • Author(s): Y Katoh, Y Omura
  • Organizer: American Geophysical Union (AGU) 2008 Fall Meeting
  • Place of Presentation: San Francisco, USA
• [Presentation] Full particle simulation of whistler-mode chorus emissions in the magnetosphere (2008)
  • Author(s): M Hikishima, S Yagitani, Y Omura, I Nagano
  • Organizer: American Geophysical Union (AGU)2008 Fall Meeting
  • Place of Presentation: San Francisco, USA
• [Presentation] Mirror-Mode Instability versus L-Mode Electromagnetic Ion Cyclotron Instability : Comparison of 2-D and 3-D Simulations (2008)
  • Author(s): M Shoji, Y Omura, B Tsurutani, O Verkhogryadova, B Lembege
  • Organizer: American Geophysical Union (AGU)2008 Fall Meeting
  • Place of Presentation: San Francisco, USA
• [Presentation] Relativistic turning acceleration of radiation belt electrons by whistler-mode chorus (2008)
  • Author(s): N. Fumya, Y. Omura, D. Summers
  • Organizer: Japan Geoscience Union Meeting 2008
  • Place of Presentation: Makuhari, Japan
• [Presentation] Rapid energization of relativistic electrons by nonlinear wave trapping (2008)
  • Author(s): Y. Kato, Y. Omura, D. Summers
  • Organizer: Japan Geoscience Union Meeting 2008
  • Place of Presentation: Makuhari, Japan
• [Presentation] Wave particle correlater simulation via ID electromagnetic particle code (2008)
  • Author(s): Y. Ueda, Y. Omura, H. Kojima, K. Hashimoto, H. Yamakawa, H. Fukuhara
  • Organizer: Japan Geoscience Union Meeting 2008
  • Place of Presentation: Makuhari, Japan
• [Presentation] One-chip Wave-Particle Interaction Analyzer for Space Plasma Observations (2008)
  • Author(s): H. Fukuhara, H. Kojima, Y. Ueda, Y. Omura, Y. Katoh, H. Yamakawa
  • Organizer: 地球電磁気・地球惑星圏学会 第124回総会・講演会
  • Place of Presentation: Sendai, Japan
• [Presentation] Computer experiment of Wave-Particle Interaction Measurement in Space Plasmas (2008)
  • Author(s): Y. Ueda, Y. Omura, H. Kojima
  • Organizer: 地球電磁気・地球惑星圏学会 第124回総会・講演会
  • Place of Presentation: Sendai, Japan
• [Presentation] 磁気圏におけるホイッスラーモード・コーラス放射の励起機構 (2008)
  • Author(s): 大村善治, 疋島充, 加藤雄人, Summers Danny, 八木谷聡
  • Organizer: 地球電磁気・地球惑星圏学会 第124回総会・講演会
  • Place of Presentation: Sendai, Japan
• [Presentation] Full particle simulation of whistler-mode chorus emissions in the magnetosphere (2008)
  • Author(s): M. Hikishima, S. Yagitani, Y. Omura, I. Nagano
  • Organizer: 地球電磁気・地球惑星圏学会 第124回総会・講演会
  • Place of Presentation: Sendai, Japan
• [Presentation] Study of characteristics of whistler-mode chorus wave generation by electron hybrid simulation (2008)
  • Author(s): Y. Katoh, Y. Omura
  • Organizer: 地球電磁気・地球惑星圏学会 第124回総会・講演会
  • Place of Presentation: Sendai, Japan
• [Presentation] ペタスケールコンピューティングによる放射線帯電子加速シミュレーションの展望 (2008)
  • Author(s): 加藤雄人, 大村善治, 臼井英之, 中島浩
  • Organizer: 地球電磁気・地球惑星圏学会 第124回総会・講演会
  • Place of Presentation: Sendai, Japan
• [Remarks] ホームページ等