Active Region Formation and Magnetic Energy Dissipation

活性区域形成和磁能耗散

• 批准号: 9311937
• 负责人: Alexander McClymont
• 金额: $ 37.76万
• 依托单位: University of Hawaii
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-03-15 至 1997-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9311937&HistoricalAwards=false
• 关键词: Active; Region; Formation; Magnetic; Energy

9311937 McClymont This project focuses on obtaining a theoretical understanding of the relationship between active regions and the solar dynamo in which the magnetic fields, and possibly free energy, are generated, and the dissipation of magnetic free energy in solar flares. The investigation encompasses a study of flux emergence, with the goal of determining whether a flux tube model of the sub photospheric magnetic field can explain observed characteristics of active region development, and a study of magnetic reconnection in the corona, with the aim of understanding the scaling of the reconnection rate with resistivity, the effect of gas pressure on current sheet formation, and the relationship between magnetic reconnection in an incompressible fluid and reconnection in a pressureless fluid. This research will lead to a greater understanding of the formation and evolution of active regions of the sun. ***

这个项目的重点是从理论上了解活动区域与产生磁场和可能产生自由能的太阳发电机之间的关系，以及太阳耀斑中磁性自由能的耗散。这项研究包括对磁通产生的研究，目的是确定亚光球磁场的磁通管模型是否可以解释观测到的活动区域发展特征，以及对日冕中磁重联的研究，目的是了解重联率与电阻率的比例、气体压力对电流片形成的影响。以及不可压缩流体中的磁重联与无压流体中的磁重联之间的关系。这项研究将使我们对太阳活动区域的形成和演化有更深入的了解。＊＊＊