SHINE: Helicity Transport from the Solar Interior to the Corona and its Role in Flares and Coronal Mass Ejections (CMEs)

SHINE：从太阳内部到日冕的螺旋传输及其在耀斑和日冕物质抛射（CME）中的作用

• 批准号: 1062054
• 负责人: Rudolf Komm
• 金额: $ 31.87万
• 依托单位: Association of Universities for Research in Astronomy, Inc.
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-04-01 至 2015-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1062054&HistoricalAwards=false
• 关键词: SHINE; Helicity; Transport; Solar; Interior

The Principal Investigator (PI) and his research team will investigate the transport of helicity from the solar interior through the photosphere and into the corona, in order to better understand the role of helicity in triggering solar flares and coronal mass ejections (CMEs). The PI will undertake a statistical study of almost 1,000 solar active regions observed by ground-based and space-based instruments. Using techniques he and his team have previously developed, the PI will calculate the kinetic helicity of subphotospheric flows associated with these regions and investigate the evolution of that helicity erupting through the solar surface. This idea of treating the solar interior and corona as a single coupled system is innovative and potentially transformative. This interdisciplinary investigation will have direct benefits to space weather forecasting. The PI and his team will compare changes in the pattern and amplitude of kinetic helicity below the photosphere, and the magnetic helicity of photospheric and coronal fields with flare and CME activity of active regions, with the goal of achieving better predictions of solar flares and CME eruptions. The PI will present the results of this research at annual scientific meetings and workshops.

首席调查员(PI)和他的研究团队将调查螺旋度从太阳内部通过光球层进入日冕的运输，以便更好地了解螺旋性在触发太阳耀斑和日冕物质抛射(CME)中的作用。国际和平研究所将对地面和天基仪器观测到的近1000个太阳活动区进行统计研究。利用他和他的团队之前开发的技术，PI将计算与这些区域相关的亚光球流的运动螺旋度，并研究通过太阳表面喷发的螺旋度的演变。这种将太阳内部和日冕视为单一耦合系统的想法是创新的，具有潜在的变革性。这种跨学科的调查将对空间天气预报产生直接的好处。PI和他的团队将比较光球下方运动螺旋度的模式和幅度的变化，以及光球和日冕场的磁螺旋度与活动区的耀斑和CME活动，目的是实现对太阳耀斑和CME爆发的更好预测。国际和平研究所将在年度科学会议和研讨会上介绍这项研究的结果。