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Kelvin‐Helmholtz instability for supersonic shear flow at the magnetospheric boundary
http://hdl.handle.net/2261/38125
http://hdl.handle.net/2261/38125ed88bc82-c7bc-4cbc-982a-febce8b3dab8
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
GRL_017_006_00749.pdf (455.2 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2010-11-19 | |||||
| タイトル | ||||||
| タイトル | Kelvin‐Helmholtz instability for supersonic shear flow at the magnetospheric boundary | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | journal article | |||||
| 著者 |
Miura, Akira
× Miura, Akira |
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| 著者所属 | ||||||
| 著者所属 | Geophysics Research Laboratory, University of Tokyo | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | It is demonstrated by means of a MHD simulation that a finite thick velocity shear layer with super‐Alfvénic velocity jump is unstable to the Kelvin‐Helmholtz (KH) instability no matter how large the sonic Mach number, a result suggesting that the tail flank boundary is unstable to the KH instability. For supersonic shear flow the unstable mode becomes damped‐oscillatory in the magnetosheath. For both subsonic and supersonic shear flows, the energy flux density into the magnetosphere by the KH instability is large enough to replenish the plasma in the low latitude boundary layer with the tailward flow kinetic energy of observed intensity. A significant fraction of the energy flux density can reach deeper into the magnetosphere and its intensity is comparable to an energy flux density required for excitation of a ULF wave in the magnetosphere | |||||
| 書誌情報 |
Geophysical research letters 巻 17, 号 6, p. 749-752, 発行日 1990-05 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 00948276 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA00657102 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | info:doi/10.1029/GL017i006p00749 | |||||
| 権利 | ||||||
| 権利情報 | copyright 1990 by the American Geophysical Union | |||||
| 日本十進分類法 | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 450 | |||||
| 出版者 | ||||||
| 出版者 | American Geophysical Union | |||||
