磁気竜巻は,太陽のコロナへのエネルギーチャネルとして磁気竜巻です
Sven Wedemeyer-Böhm1, Eamon Scullion, Oskar Steiner
1Institute of Theoretical Astrophysics, University of Oslo, PO Box 1029 Blindern, N-0315 Oslo, Norway. svenwe@astro.uio.no
Nature
|June 29, 2012
まとめ
太陽による大気温暖化は,超竜巻のような磁気構造によって説明される. これらの至る所に存在する構造は,太陽のコンベクションゾーンからのエネルギーを上層大気圏にチャネル化し,長年にわたるパズルを解決しています.
科学分野:
- 太陽物理 太陽物理学
- プラズマ物理学のプラズマ物理学
- 天体物理学 天体物理学
背景:
- 太陽の大気は,100万ケルビン以上まで加熱し,太陽風の加速に相当するエネルギーの流れを必要とします.
- 太陽の大気中のエネルギー転送と分散の正確なメカニズムは謎のままです.
- 太陽表面のコンベクティブ・フローは,大気温上昇メカニズムとして提案された磁場編みと回転を駆動する.
研究 の 目的:
- 太陽の上層大気圏へのエネルギー転送における染色球の渦巻の役割を調査する.
- 速く回転する磁気構造の観測シグネチャを特定する.
- 太陽の大気加熱と太陽風の加速について,代替的な説明を提供すること.
主な方法:
- 染色球の渦の観測分析.
- 光球から染色球を通って移行領域と低コロナに渦巻く動きを追跡します.
- これらの渦を,急速に回転する磁気構造のサインとして識別する.
主要な成果:
- 染色球の渦巻は,移行領域と低コロナに痕跡を残しています.
- これらの渦は,急速に回転する磁気構造の観測シグネチャーとして識別されます.
- これらの構造は,コンベクションゾーンから太陽の上層大気圏に広がり,太陽の"スーパー竜巻"に似ています.
結論:
- 染色球の渦巻は至るところに存在し,太陽の大気圏の下部から上部にエネルギーをチャネルするメカニズムとして機能します.
- これらの発見は,太陽の大気加熱と太陽風の加速に関する新しい視点を提供します.
- 特定された構造は,太陽エネルギー転送パズルの代替解決策を提供します.
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