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あけぼの衛星観測によって明らかにされた極冠域における降下電子と電場の関係
https://doi.org/10.15094/00008852
https://doi.org/10.15094/00008852ed991de0-0a20-414d-b14c-79525d0d1dd7
名前 / ファイル | ライセンス | アクション |
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KJ00000140161 (290.4 kB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1994-07-01 | |||||
タイトル | ||||||
タイトル | あけぼの衛星観測によって明らかにされた極冠域における降下電子と電場の関係 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Relation of electric field and particle precipitation in the polar cap region inferred from Akebono observations | |||||
言語 | ||||||
言語 | jpn | |||||
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 | 10.15094/00008852 | |||||
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) | |||||
論文名よみ | ||||||
その他のタイトル | アケボノ エイセイ カンソク ニ ヨッテ アキラカ ニ サレタ キョクカンイキ ニ オケル コウカ デンシ ト デンバ ノ カンケイ | |||||
著者名(日) |
小原, 隆博
× 小原, 隆博× 向井, 利典× 早川, 基× 鶴田, 浩一郎× 松岡, 彩子× 西田, 篤弘 |
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著者名(英) |
Obara, Takahiro
× Obara, Takahiro× Mukai, Toshifumi× Hayakawa, Hajime× Tsuruda, Koichiro× Matsuoka, Ayako× Nishida, Atsuhiro |
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著者所属(日) | ||||||
文部省宇宙科学研究所 | ||||||
著者所属(日) | ||||||
文部省宇宙科学研究所 | ||||||
著者所属(日) | ||||||
文部省宇宙科学研究所 | ||||||
著者所属(日) | ||||||
文部省宇宙科学研究所 | ||||||
著者所属(日) | ||||||
文部省宇宙科学研究所 | ||||||
著者所属(日) | ||||||
文部省宇宙科学研究所 | ||||||
著者所属(英) | ||||||
en | ||||||
The Institute of Space and Astronautical Science | ||||||
著者所属(英) | ||||||
en | ||||||
The Institute of Space and Astronautical Science | ||||||
著者所属(英) | ||||||
en | ||||||
The Institute of Space and Astronautical Science | ||||||
著者所属(英) | ||||||
en | ||||||
The Institute of Space and Astronautical Science | ||||||
著者所属(英) | ||||||
en | ||||||
The Institute of Space and Astronautical Science | ||||||
著者所属(英) | ||||||
en | ||||||
The Institute of Space and Astronautical Science | ||||||
抄録(日) | ||||||
内容記述タイプ | Other | |||||
内容記述 | 惑星間磁場(IMF)が北向きになると, 極冠域の対流電場が乱れ, 微細な構造を持つことが, 「あけぼの」搭載の電場観測装置(EFD)による観測の結果, 明らかになった。一方, これまでの研究で, 低いエネルギーを持った電子が, IMFが北向きになると, 極冠域にスパイク的に出現することが判明している。そこで, 電子の降下領域と電場の関係を調べた結果, 以下のことが明らかになった。(1)電子は, 電場の収束域(divE<0の領域)に見られる。(2)電場の変化は, Y方向(dawn to dusk方向)に大きく, X方向(noon-mid-night方向)に小さい。(3)エネルギーフラックスは0.01∿1erg/(cm)^2sに及ぶ。以上のことから, multiple sun-aligned arcsと呼ばれている現象を, 「あけぼの」は観測している可能性が大きいものと思われる。 | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Akebono (EXOS-D) observations revealed that an electric field in the polar cap region was very irregular and an entire polar cap region was filled with many electron precipitation spikes when the interplanetary magnetic field (IMF) was directed northward. It was also found that the variation of the electric field was dominantly seen in the dawn-to-dusk (Ey) component while less variation was observed in the noon-midnight (Ex) component. Most electron precipitations were found in a region where a divE was negative. The integrated energy flux of the precipitating electrons was in the range from 0.01(erg/(cm)^2s) to 1(erg/(cm)^2s), which can produce auroral luminosity in the polar cap region. Though we have no simultaneous image data right now, it is likely that Akebono traversed multiple sun-aligned arcs. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00181831 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00857289 | |||||
書誌情報 |
南極資料 en : Antarctic Record 巻 38, 号 2, p. 148-156, 発行日 1994-07 |
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国際十進分類法 | ||||||
主題Scheme | UDC | |||||
主題 | 551.510.535/.537 |