近太陽太陽風における磁気スイッチバックの特性
Samuel T Badman1, Naïs Fargette2,3, Lorenzo Matteini3
1Center for Astrophysics, Harvard & Smithsonian, Cambridge, MA 02138 USA.
まとめ
パーカー太陽探査機によって観測された磁気スイッチバックは、一般的な太陽風の偏向です。これらのアルベン波変動と関連するジェットは、内太陽圏と太陽風の理解に不可欠です。
科学分野:
- 宇宙物理学
- 太陽物理学
- プラズマ物理学
背景:
- 磁気スイッチバックは、惑星間磁場が鋭く折りたたまれる太陽風の偏向です。
- これらのイベントはアルベン波変動と相関し、特に放射状の背景場において、外向きジェットを形成します。
- パーカー太陽探査機は、0.3 AU以内の内太陽圏にスイッチバックが遍在していることを明らかにしました。
研究 の 目的:
- 主にパーカー太陽探査機からの磁気スイッチバックのインサイチュ測定をレビューすること。
- これらの構造の同定と測定について議論すること。
- 観測特性を提示し、さらなる研究が必要な領域を特定すること。
主な方法:
- パーカー太陽探査機からのインサイチュ測定のレビュー。
- 磁気スイッチバックを同定するための磁場および速度データの分析。
- 個々のスイッチバックとその集合的なパッチへの配置の特性評価。
主要な成果:
- 磁気スイッチバックは内太陽圏にほぼ遍在しています。
- スイッチバックは特徴的な速度ジェットを示し、アルベン波変動とよく相関しています。
- 観測特性は、コンセンサスとさらなる調査が必要な領域の両方を示しています。
結論:
- 磁気スイッチバックは太陽風のダイナミクスにおいて重要な役割を果たします。
- それらの普及と影響を完全に理解するには、さらなる研究が必要です。
- 未解決の問題と将来の研究のための推奨事項が特定されています。
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