Mechanism of magnetic energy dissipation in weakly ionized solar atmospphere

弱电离太阳大气中的磁能耗散机制

• 批准号: 22740121
• 负责人: ISOBE Hiroaki
• 金额: $ 2.58万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22740121/
• 关键词: 太陽物理学; 弱電離プラズマ; 磁気リコネクション; 彩層; 磁気流体力学; プロミネンス; 数値シミュレーション; 両極生拡散; 太陽彩層

We studied the magnetic energy dissipation mechanism of the fully collisional and weakly ionized plasma in the solar lower atomosphere by numerical simulation and analysis of the solar chromospheric jets observed by Solar Optical Telescope on Board Hinode space craft. We found that, similarly to the case in the fully ionized solar corona, intermittent and fast magnetic reconnection associated with plasmoids ejection is occurring also in the solar chromosphere. The cause of such intermittent and fast magnetic reconnection is the inhomogeneity of the ambipolar diffusion.

通过对太阳光学望远镜观测到的太阳色球喷流的数值模拟和分析，研究了太阳低层大气中完全碰撞弱电离等离子体的磁能耗散机制。我们发现，类似的情况下，在完全电离的日冕，间歇性和快速的磁场重联与等离子体团喷射也发生在太阳色球。这种间歇性和快速磁场重联的原因是双极扩散的不均匀性。

项目成果

Magnetic reconnection

• DOI: 10.1038/nphys3393
• 发表时间: 2015-07
• 期刊: Nature Physics
• 影响因子: 19.6
• 作者: T. Moore;J. Burch;R. Torbert

Observations of Plasma Blob Ejection from a Quiescent Prominence by Hinode Solar Optical Telescope

用日之出太阳光学望远镜观测静止日珥的等离子体团喷射

• 发表时间: 2011
• 期刊: Publications of the Astronomical Society of Japan
• 影响因子: 2.3
• 作者: Hillier;A.;Isobe;H.;Watanabe;H.
• 通讯作者: H.

Detailed analysis of fan-shaped jets in three dimensional numerical simulation

三维数值模拟中扇形射流的详细分析

• DOI: 10.1088/1674-4527/11/6/010
• 发表时间: 2011-01
• 期刊: Research in Astronomy and Astrophysics
• 影响因子: 1.8
• 作者: Jiang, Rong-Lin;Shibata, K.;Isobe, H.;Fang, Cheng
• 通讯作者: Fang, Cheng

NUMERICAL SIMULATION OF THREE-DIMENSIONAL ASYMMETRIC RECONNECTION AND APPLICATION TO A PHYSICAL MECHANISM OF PENUMBRAL MICROJETS

• DOI: 10.1088/0004-637x/761/2/87
• 发表时间: 2012-11
• 期刊: The Astrophysical Journal
• 作者: N. Nakamura;K. Shibata;H. Isobe

非一様な縦磁場、電離度分布下の弱電離磁気リコネクション

非均匀纵向磁场和电离度分布下的弱电离磁重联

• 发表时间: 2011
• 作者: Hayakawa;T.;Torii;K.;Enokiya;R.;Amano;T.;Fukui;Y;磯部洋明
• 通讯作者: 磯部洋明