Identification of magnetohydrodynamic waves drive mechanism on the solar surface by image reconstruction technique

2020 Fiscal Year Final Research Report

• Project/Area Number: 19K21059
• Project/Area Number (Other): 18H05878 (2018)
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Multi-year Fund (2019); Single-year Grants (2018)
• Review Section: 0204:Astronomy, earth and planetary science, and related fields
• Research Institution: Japan Aerospace EXploration Agency
• Principal Investigator: Oba Takayoshi 国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 宇宙航空プロジェクト研究員 (10824443)
• Project Period (FY): 2018-08-24 – 2021-03-31
• Keywords: 太陽 / 光球 / 磁場 / 偏光分光 / 対流

Outline of Final Research Achievements

This study aims to reveal the mechanism that drives magnetohydrodynamic wave on the solar surface. The fact in the background of the difficulty of capturing the mechanism is that any observation instruments currently available cannot spatially resolve a magnetic flux tube. We developed a technique that improves the imaging performance of the telescope with high accuracy. Our study enables to diagnose a flux tube in a fine scale, providing a detail structure of magnetic field of the fluxtube.

Free Research Field

太陽物理学

Academic Significance and Societal Importance of the Research Achievements

太陽において生じている動的現象の多くは, 大気中に無数に存在している微細な磁束管が駆動していると考えられている. 本研究において, これらの微細な磁束管を高空分解能・高精度で物理量診断する技術を開発した. 今後, 本手法を既存の観測データに適用することで, 磁気流体波の励起に限らず, 磁束管が駆動する様々なエネルギー解放現象について理解が進むことが期待される.