Time-dependent responses of the neutral mass density to fixed magnetospheric energy inputs into the cusp region in the thermosphere during a period of large IMF BY : a high-resolution two-dimensional local modeling

• 資料種別: 記事
• タイトル: Time-dependent responses of the neutral mass density to fixed magnetospheric energy inputs into the cusp region in the thermosphere during a period of large IMF BY : a high-resolution two-dimensional local modeling
• 著者・編者: Tomokazu Oigawa; Hiroyuki Shinagawa; Satoshi Taguchi
• 出版事項: 日本 : Springer Nature
• 出版年月日等: 2021-11-04
• 出版年（W3CDTF）: 2021-11-04
• タイトル（掲載誌）: EPS : Earth, Planets and Space
• 巻号年月日等（掲載誌）: 73(201)
• 掲載巻: 73(201)
• ISSN（掲載誌）: 1880-5981
• ISSN-L（掲載誌）: 1343-8832
• 本文の言語コード: eng
• DOI: 10.1186/s40623-021-01535-9; https://doi.org/10.1186/s40623-021-01535-9
• 国立国会図書館永続的識別子: info:ndljp/pid/12287033; https://dl.ndl.go.jp/pid/12287033
• コレクション（共通）: 障害者向け資料
• コレクション（障害者向け資料：レベル1）: テキストデータ
• コレクション（個別）: 国立国会図書館デジタルコレクション > 電子書籍・電子雑誌 > その他; https://dl.ndl.go.jp/collections/B00035
• 収集根拠: オンライン資料収集制度
• 受理日（W3CDTF）: 2022-05-18T20:14:28+09:00
• 保存日（W3CDTF）: 2022-04-27
• 記録形式（IMT）: application/pdf
• オンライン閲覧公開範囲: 国立国会図書館内限定公開
• デジタル化資料送信: 図書館・個人送信対象外
• 遠隔複写可否（NDL）: 可
• 掲載誌（URI）: https://earth-planets-space.springeropen.com/articles
• 掲載誌（国立国会図書館永続的識別子）: info:ndljp/pid/11667897; https://dl.ndl.go.jp/pid/11667897
• 連携機関・データベース: 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp

• 要約等: Thermospheric mass density values around the 400-km altitude in the cusp can be significantly enhanced as compared to regions around the cusp. To gain insights into the extent to which the magnitude of the cusp mass density enhancements can be explained by the static distributions of moderate electric field and electron precipitation typical for a period of large IMF BY, we employed a high-resolution two-dimensional local model that can represent the plasma features that are characteristic of the cusp: azimuthal ion flow and low-energy electron precipitation. We also calculated the thermospheric dynamics with and without neutral–ion drag. We found that in the calculation with this drag the obtained mass density enhancement is 10% at most, indicating that the thermospheric dynamics imposing the moderate static electric field and electron precipitation can only explain about one-third of the typical magnitude of cusp thermospheric mass density, i.e., 33%. We also found that in the calculation without neutral–ion drag the magnitude of the mass density enhancement is slightly larger than the one with the neutral–ion drag. To explain the average magnitude of the cusp mass density enhancements completely, other energy inputs such as Alfvén waves, in addition to the static distributions of electric field and electron precipitation, are needed.
• DOI: 10.1186/s40623-021-01535-9; https://doi.org/10.1186/s40623-021-01535-9
• オンライン閲覧公開範囲: インターネット公開
• 著作権情報: © The Author(s) 2021.; This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
• 関連情報（URI）: http://hdl.handle.net/2433/276916; http://id.ndl.go.jp/digimeta/12287033; https://dl.ndl.go.jp/pid/12287033; https://link.springer.com/content/pdf/10.1186/s40623-021-01535-9.pdf; https://link.springer.com/article/10.1186/s40623-021-01535-9/fulltext.html
• 参照: Two‐Dimensional Local Modeling of Thermospheric Heating and Neutral Mass Density Enhancement Driven by Alfvén Waves; https://cir.nii.ac.jp/crid/1050579521722273280; Effect of the mirror force on the collision rate due to energetic electron precipitation: Monte Carlo simulations; https://cir.nii.ac.jp/crid/1360022304972101760
• 連携機関・データベース: 国立情報学研究所 : CiNii Research; https://cir.nii.ac.jp/
• 提供元機関・データベース: 学術機関リポジトリデータベース; https://irdb.nii.ac.jp; 雑誌記事索引データベース; https://ndlsearch.ndl.go.jp; Crossref; https://www.crossref.org
• 書誌ID（NDLBibID）: 12287033; http://id.ndl.go.jp/bib/12287033