2026-04-22 マックス・プランク研究所
The new computer simulations are based on a magnetic field structure that is often associated with prominences: the magnetic field lines in the corona form a double arc with a small dip in the middle. As the calculations show, the flame-like prominence forms in this dip and remains trapped there. All relevant layers of the Sun were taken into account, from the corona, the Sun’s outer atmosphere, to parts of the convection zone below the Sun’s surface. For an animated version, see the institutes website.© MPS
＜関連情報＞
- https://www.mpg.de/26409294/0420-aero-solar-prominences-supply-mechanisms-in-the-sun-s-corona-151060-x
- https://www.nature.com/articles/s41550-026-02840-7
太陽プロミネンスの形成とダイナミクスに関する自己無撞着な数値シミュレーション Self-consistent numerical simulations for the formation and dynamics of solar prominences
Lisa-Marie Zessner,Robert H. Cameron,Sami K. Solanki &Damien Przybylski
Nature Astronomy Published:22 April 2026
DOI:https://doi.org/10.1038/s41550-026-02840-7
Abstract
Solar prominences are cool and dense plasma structures floating in the hot solar corona. They are ubiquitous features in the solar atmosphere, but their formation mechanism is still unclear. Here we perform comprehensive fully three-dimensional numerical simulations of prominence formation including the physics necessary to describe all atmospheric layers of the sun. With appropriate initial conditions for the magnetic field, solar prominences form self-consistently in the simulations. The formation starts by the random ejection of a dense plasma seed from the chromosphere into the corona. Subsequently, the prominence is built up by a combination of plasma injections from the chromosphere and condensation of inflowing coronal plasma. The prominence properties qualitatively match those of observed prominences. Our findings demonstrate the importance of the dynamics at and below the solar surface in the formation and evolution of solar prominences. This suggests that subsurface dynamics should also be considered in the study of prominence eruptions, which can be associated with coronal mass ejections.
