Studies of Explosive Processes of the Hot Plasmas in the Sun and Astronomical Object

太阳和天体中热等离子体爆炸过程的研究

• 批准号: 18540230
• 负责人: YOKOYAMA Takaaki
• 金额: $ 2.64万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18540230/
• 关键词: 太陽物理学; 天文; プラズマ・核融合; 太陽; 天体プラズマ; コロナ; 磁気リコネクション; X線

By large-scale simulations and spacecrafts' observational data analysis, various active phenomena of the solar and astrophysical plasmas were studied. We obtained important results in the fields of generation of magnetic field by the dynamo process, magnetic emergence to the stellar atmosphere, magnetic activities on the surface, the steady magnetic heating, the triggers of explosive flares, turbulent reconnection, relativistic reconnection, non-thermal particle accelerations and so on.

通过大尺度模拟和航天器观测数据分析，研究了太阳等离子体和天体物理等离子体的各种活动现象。我们在发电机过程产生磁场、恒星大气中的磁浮现、表面磁活动、稳定的磁加热、爆发性耀斑的触发、湍流重联、相对论重联、非热粒子加速等领域取得了重要的结果。

项目成果

Suppression of convection around small magnetic concentrations

• DOI: 10.1051/0004-6361:20079029
• 发表时间: 2008-04
• 期刊: Astronomy and Astrophysics
• 影响因子: 6.5
• 作者: S. Morinaga;T. Sakurai;K. Ichimoto;T. Yokoyama;M. Shimojo;Y. Katsukawa

Emergence of a Helical Flux Rope under an Active Region Prominence

• DOI: 10.1086/528792
• 发表时间: 2008-01
• 期刊: The Astrophysical Journal Letters
• 作者: T. Okamoto;S. Tsuneta;B. Lites;M. Kubo;T. Yokoyama;T. Berger;K. Ichimoto;Y. Katsukawa;S. Nagata-S.

Fine-Scale Structures of the Evershed Effect Observed by the Solar Optical Telescope aboard

太阳光学望远镜观测到的永希效应的精细尺度结构

• 发表时间: 2007
• 期刊: Publications of Astronomical Society of Japan 59
• 作者: Ichimoto;et. al.
• 通讯作者: et. al.

Triggering Mechanism for the Filament Eruption on 2005 September 13 in NOAA Active Region

2005年9月13日NOAA活动区灯丝喷发的触发机制

• 发表时间: 2007
• 期刊: The Astrophysical Journal 668
• 作者: Nagashima;et. al.
• 通讯作者: et. al.

Numerical Study of a Propagating Nonthermal Microwave Feature in a Solar Flare Loop

• DOI: 10.1086/591268
• 发表时间: 2008-06
• 期刊: The Astrophysical Journal
• 作者: T. Minoshima;T. Yokoyama