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ON THE CONDITIONS OF TRIGGERING VLF EMISSIONS BY A NATURAL WHISTLER
http://hdl.handle.net/2237/22229
http://hdl.handle.net/2237/222291fc1729b-0533-462e-bb6c-a456e75054f4
名前 / ファイル | ライセンス | アクション |
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proria_27_31.pdf (2.6 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2015-06-03 | |||||
タイトル | ||||||
タイトル | ON THE CONDITIONS OF TRIGGERING VLF EMISSIONS BY A NATURAL WHISTLER | |||||
言語 | en | |||||
著者 |
YOSHIDA, Toshio
× YOSHIDA, Toshio× OHTSU, Jinsuke× HAYAKAWA, Masashi |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The purpose of the present paper is to discuss the conditions of triggering VLF emissions by a natural whistler with variable frequency. The interaction time is defined by using the variation of unperturbed phase angle, which is determined by the spatial inhomogeneity of the medium and the wave frequency variation. Sample calculations of the interaction time are made for frequencies below the nose frequency on L = 4. A comparison of the interaction time with the bunching time has shown that VLF emissions are possibly triggered even by a weak whistler around 3 kHz in a very restricted range of geomagnetic latitude far from the equator in the upstream side of the electron. The study of the phase variations including the finite wave amplitude based on the complete equations of motion has confirmed that the condition that the interaction time exceeds the bunching time would be a threshold for phase bunching of electrons by a whistler, and hence triggering VLF emissions. | |||||
言語 | en | |||||
出版者 | ||||||
出版者 | The Research Institute of Atmospherics, Nagoya University | |||||
言語 | en | |||||
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 | departmental bulletin paper | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
ISSN(print) | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0077-264X | |||||
書誌情報 |
en : Proceedings of the Research Institute of Atmospherics, Nagoya University 巻 27, p. 31-48, 発行日 1980-03-24 |
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値 | publisher | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/22229 | |||||
識別子タイプ | HDL |