WEKO3
アイテム
Meridional Distribution of Middle-Energy Protons and Pressure-Driven Currents in the Nightside Inner Magnetosphere: Arase Observations
http://hdl.handle.net/10228/00007559
http://hdl.handle.net/10228/000075599d0169c6-e613-4764-82dd-afb06faec530
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
LaSEINE-2019_12.pdf (4.3 MB)
|
|
| アイテムタイプ | 学術雑誌論文 = Journal Article(1) | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2020-01-23 | |||||||||||||||||||
| 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 | journal article | |||||||||||||||||||
| タイトル | ||||||||||||||||||||
| タイトル | Meridional Distribution of Middle-Energy Protons and Pressure-Driven Currents in the Nightside Inner Magnetosphere: Arase Observations | |||||||||||||||||||
| 言語 | en | |||||||||||||||||||
| 言語 | ||||||||||||||||||||
| 言語 | eng | |||||||||||||||||||
| 著者 |
Imajo, S.
× Imajo, S.× Nosé, M.× Kasahara, S.× Yokota, S.× Matsuoka, A.× Keika, K.× Hori, T.× 寺本, 万里子
WEKO
26395
× Yamamoto, K.× Oimatsu, S.× Nomura, R.× 藤本, 晶子
WEKO
25636
× Shinohara, I.× Miyoshi, Y. |
|||||||||||||||||||
| 抄録 | ||||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||||
| 内容記述 | We examined the average meridional distribution of middle‐energy protons (10–180 keV) and pressure‐driven currents in the nightside (20–04 hr magnetic local time) ring current region during moderately disturbed times using the Arase satellite's data. Because the Arase satellite has a large inclination orbit of 31°, it covers the magnetic latitude (MLAT) in the range of −40° to 40° and a radial distance of <6RE. We found that the plasma pressure decreased significantly with increasing MLAT. The plasma pressure on the same L* shell at 30° < MLAT < 40° was ∼10–60% of that at 0° < 4 MLAT < 10°, and the rate of decrease was larger on lower L* shells. The pressure anisotropy, derived as the perpendicular pressure divided by the parallel pressure minus 1, decreased with radial distance and showed a weak dependence on MLAT. The magnitude of the plasma beta at 30°<MLAT<40° was 1 or 2 orders smaller than that at 0°<MLAT<10°. The plasma pressure normalized by the value at 0°<MLAT<10° estimated from the magnetic strength and anisotropy was roughly consistent with the observed plasma pressure for L*=3.5–5.5. The azimuthal pressure‐gradient current derived from the plasma pressure was distributed over MLAT∼0–20°, while the curvature current was limited within MLAT∼0–10°. We suggest that the latitudinal dependence should be taken into account in interpretations of plasma parameters in successive orbits during magnetic storms. | |||||||||||||||||||
| 言語 | en | |||||||||||||||||||
| 書誌情報 |
en : Journal of Geophysical Research: Space Physics 巻 124, 号 7, p. 5719-5733, 発行日 2019-07-23 |
|||||||||||||||||||
| 出版社 | ||||||||||||||||||||
| 出版者 | American Geophysical Union | |||||||||||||||||||
| 言語 | en | |||||||||||||||||||
| DOI | ||||||||||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||||||
| 関連識別子 | https://doi.org/10.1029/2019JA026682 | |||||||||||||||||||
| NCID | ||||||||||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||||||||||
| 収録物識別子 | AA10819721 | |||||||||||||||||||
| ISSN | ||||||||||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||||||||||
| 収録物識別子 | 2169-9380 | |||||||||||||||||||
| 著作権関連情報 | ||||||||||||||||||||
| 権利情報 | Copyright (c) 2019 American Geophysical Union | |||||||||||||||||||
| キーワード | ||||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||||
| 主題 | meridional distributions | |||||||||||||||||||
| キーワード | ||||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||||
| 主題 | ring current protons | |||||||||||||||||||
| キーワード | ||||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||||
| 主題 | pressure‐driven current | |||||||||||||||||||
| キーワード | ||||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||||
| 主題 | Arase satellite | |||||||||||||||||||
| キーワード | ||||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||||
| 主題 | nightside inner magnetosphere | |||||||||||||||||||
| キーワード | ||||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||||
| 出版タイプ | ||||||||||||||||||||
| 出版タイプ | VoR | |||||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||||||||
| 査読の有無 | ||||||||||||||||||||
| 値 | yes | |||||||||||||||||||
| 研究者情報 | ||||||||||||||||||||
| URL | https://hyokadb02.jimu.kyutech.ac.jp/html/100001151_ja.html | |||||||||||||||||||
| 論文ID（連携） | ||||||||||||||||||||
| 値 | 10346733 | |||||||||||||||||||
| 連携ID | ||||||||||||||||||||
| 値 | 7936 | |||||||||||||||||||
