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Direction finding of half-gyrofrequency VLF emissions in the off-equatorial region of the magnetosphere
https://doi.org/10.15094/00004045
https://doi.org/10.15094/000040454489cd6a-532c-4aae-bc3e-141a56a161ba
名前 / ファイル | ライセンス | アクション |
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KJ00000035891 (608.5 kB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1988-02-01 | |||||
タイトル | ||||||
タイトル | Direction finding of half-gyrofrequency VLF emissions in the off-equatorial region of the magnetosphere | |||||
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 | |||||
ID登録 | ||||||
ID登録 | 10.15094/00004045 | |||||
ID登録タイプ | JaLC | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
著者名(英) |
Hayakawa, Masashi
× Hayakawa, Masashi |
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著者所属(英) | ||||||
en | ||||||
Research Institute of Atmospherics, Nagoya University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The GEOS 1 satellite observations of VLF/ELF waves in the off-equatorial region of the outer magnetosphere have indicated that the spectrum consists of upper and lower bands with a frequency gap between them. Based on the determination of wave normal directions of the upper band emissions in the off-equator and the subsequent inverse ray tracing toward the equator, it is found that the wave normal angles (θ) of the upper band emissions at the equator with respect to the magnetic field, are very close to the oblique resonance cone (θ_<res>) and that their normalized frequencies there are above 0.5. Hence, the upper band VLF emissions observed off the equator are identified as being "half-gyrofrequency" VLF emissions generated in the vicinity of the magnetic equator, with their wave normals close to θ_<res>, which lends further support to our previous equatorial conclusion. Also, their generation and propagation mechanisms are discussed. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10756224 | |||||
書誌情報 |
Proceedings of the NIPR Symposium on Upper Atmosphere Physics 巻 1, p. 168-172, 発行日 1988-02 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |