Structure and Evolution of Filament Channels

细丝通道的结构和演化

• 批准号: 9808063
• 负责人: Sara Martin
• 金额: --
• 依托单位: Helio Research
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-08-15 至 2000-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9808063&HistoricalAwards=false
• 关键词: Structure; Evolution; Filament; Channels

Investigators are performing a series of observational and theoretical programs on the structure and dynamics of magnetic fields in filament channels, particularly the origin of the axial field. Using several ground- and space-based observational telescopes, they study magnetic features and plasma flows in and around filament channels on the Sun. They are searching for evidence of magnetic reconnection in small-scale emerging or canceling bipoles near polarity inversion lines. In addition, they seek to deduce axial fields in prominences and filament channels observed near the limb, as well as the evolution of filament channels and filaments at high latitude, and the formation of the polar crowns. Finally, they use satellite data to study the role of magnetic reconnection in establishing observed global patterns of helicity in prominences and coronal arcades.

研究人员正在对暗条通道中磁场的结构和动力学，特别是轴向场的起源进行一系列的观测和理论研究。他们使用几个地面和空间观测望远镜，研究太阳暗条通道内和周围的磁特征和等离子体流。他们正在极性反转线附近的小规模出现或取消的双极中寻找磁场重联的证据。此外，他们还试图推断在边缘附近观察到的双折射和细丝通道中的轴向场，以及高纬度细丝通道和细丝的演变，以及极冠的形成。最后，他们利用卫星数据研究磁重联在建立观测到的全球螺旋度模式和日冕弧中的作用。