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Investigation of the origin of Io-related decametric radiation: Consideration of polarization characteristics
https://jaxa.repo.nii.ac.jp/records/20620
https://jaxa.repo.nii.ac.jp/records/20620b8ceaebf-890d-4219-ae8d-c8ffbbf3dd21
| Item type | 会議発表論文 / Conference Paper(1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2015-03-26 | |||||||||
| タイトル | ||||||||||
| タイトル | Investigation of the origin of Io-related decametric radiation: Consideration of polarization characteristics | |||||||||
| 言語 | en | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Io | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | 木星 | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | 位相シフト | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | 磁場 | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | デカメートル放射 | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | 磁気経度 | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | プラズマ密度 | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | 偏光 | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Io | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Jupiter | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | phase shift | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | magnetic field | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | decametric radiation | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | magnetic longitude | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | plasma density | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | polarization | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||||||
| 資源タイプ | conference paper | |||||||||
| アクセス権 | ||||||||||
| アクセス権 | metadata only access | |||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||||||
| その他のタイトル | ||||||||||
| その他のタイトル | Ioに関連したデカメートル放射の起源に関する研究:偏光特性の考慮 | |||||||||
| 著者 |
三澤, 浩昭
× 三澤, 浩昭
× Misawa, Hiroaki
|
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| 著者所属 | ||||||||||
| 東北大学 大学院理学研究科 | ||||||||||
| 著者所属（英） | ||||||||||
| en | ||||||||||
| Tohoku University Graduate School of Science | ||||||||||
| 出版者 | ||||||||||
| 出版者 | 宇宙航空研究開発機構宇宙科学研究本部 | |||||||||
| 出版者（英） | ||||||||||
| 出版者 | Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS) | |||||||||
| 書誌情報 |
第37回月・惑星シンポジウム en : Proceedings of the 37th ISAS Lunar and Planetary Symposium p. 163-166, 発行日 2004-02 |
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| 抄録（英） | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | Jupiter's Io-related decameter wave emission (Io-DAM) is known to show following clear occurrence characteristics; 1) the Io-DAM events occur in specific combinations of the central meridian magnetic longitude (CML) and Io phase angle (phi(sub Io), 2) most of their polarization show right-handed and highly elliptical feature. The three-dimensional ray tracing analysis for Io-DAM has been made to investigate the location and physical properties of the source regions and the magnetoionic mode. In previous such studies, source regions have been assumed to be located at one restricted region at an instant, however, longitudinally extended source regions are assumed in this study based on Jupiter's auroral images which have shown that particle energy has been induced in longitudinally wide area in Jupiter's polar regions. The results have been still preliminary one, however, give some explanations for the origin of Io-DAM. The observed CML-phi(sub Io) occurrence probability can be explained by thin emission cone with the opening half angle of nearly 90 degrees and quite tenuous plasma condition in and near the source region, but some additional conditions, such as some particular energy inputs to the Io-DAM source magnetic fields to generate Io-DAM waves, are still required. The observed polarization characteristics can not be explained based on known plasma conditions in Jupiter's polar regions, which suggests that polar plasma should be in quite different conditions between dawn and dusk side. | |||||||||
| 資料番号 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | 資料番号: AA0047898042 | |||||||||
