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Simulation study of the harmonic structure of lower hybrid waves driven by energetic ions
http://hdl.handle.net/10655/0002000046
http://hdl.handle.net/10655/000200004661ac3630-182d-448b-b7f5-316a6f551b39
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2023-09-22 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Simulation study of the harmonic structure of lower hybrid waves driven by energetic ions | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
KOTANI, Tsubasa
× KOTANI, Tsubasa× TOIDA, Mieko× MORITAKA, Toseo× TAGUCHI, Satoshi |
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著者ID | ||||||
内容記述タイプ | Other | |||||
内容記述 | ORCID 0000-0001-8894-3430 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | By means of one-dimensional, electromagnetic, particle-in-cell simulations considering the effects of energetic-ion injection, we study the harmonic structure of lower hybrid waves (LHWs) driven by energetic ions under the condition where the electron plasma frequency (ωpe) is smaller than the electron cyclotron frequency (Ωe). It is found that after the LHWs are excited with the wave number and frequency of (k1,ω1), many harmonic LHWs are generated at (mk1,nω1) where m and n are integers, up to far beyond the lower hybrid resonance frequency, m and n∼10. We show that the harmonic LHWs are generated by nonlinear wave-wave coupling between the LHWs directly excited by the energetic ions and the energetic-ion cyclotron waves above the lower hybrid resonance frequency. We also find that the harmonic LHWs can exist even after the energetic ions are artificially removed because they can be coupled with ion Bernstein waves due to bulk ions. The effect of the energetic-ion injection and the dependence of ωpe/Ωe on the development of the harmonic LHWs are investigated to compare the simulation results with an observation in Earth's magnetosphere. | |||||
言語 | en | |||||
書誌情報 |
en : Physical Review E 巻 108, 号 3, p. 035208, ページ数 12, 発行日 2023-09-15 |
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出版者 | ||||||
言語 | en | |||||
出版者 | American Physical Society | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2470-0045 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11558033 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1103/PhysRevE.108.035208 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1103/PhysRevE.108.035208 | |||||
関連名称 | Publisher version | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
NAIS | ||||||
13539 |