A Study of Vector Magnetic and Velocity Fields During the Solar Maximum with the Magneto-Optic Filter

利用磁光滤波器研究太阳活动极大期期间的矢量磁场和速度场

• 批准号: 8912982
• 负责人: Harold Zirin
• 金额: $ 9万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-11-15 至 1993-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8912982&HistoricalAwards=false
• 关键词: Study; Vector; Magnetic; Velocity; Fields

Solar flares constitute the sudden release of energy on the sun's surface. They become more frequent and stronger on an 11 year cycle (also called the sunspot cycle). They are caused by the gradual storing up and followed by the sudden release of energy in magnetic fields that accompany the sunspot cycle. Understanding the origin of the sun's magnetic fields, the storage of energy by them, and the release of that energy during flares is a poorly understood subject. The Principal Investigator (PI) proposes to observe magnetic fields in sunspot regions during the forthcoming solar sunspot maximum, using a newly developed magneto-optic filter (consisting of a resonance cell filled with potassium vapor in a strong magnetic field). This filter permits the measurement of both transverse and longitudinal components of solar magnetic fields. The PI expects that his work will further our understanding of the magnetic fields accompanying solar flares and test the hypothesis that the energy released during flares results from stressed or sheared magnetic field configurations.

太阳耀斑构成了太阳表面能量的突然释放。它们在11年的周期(也称为太阳黑子周期)上变得更加频繁和强烈。它们是由太阳黑子周期伴随的磁场中能量的突然释放和逐渐积累造成的。了解太阳磁场的起源、能量的储存以及耀斑期间能量的释放是一个知之甚少的课题。首席研究员(PI)建议使用一种新开发的磁光滤光器(由强磁场中充满钾蒸气的共振池组成)，在即将到来的太阳黑子极大期间观测太阳黑子区域的磁场。这种滤光片可以测量太阳磁场的横向和纵向分量。国际和平研究所预计，他的工作将进一步加深我们对伴随太阳耀斑的磁场的理解，并检验耀斑期间释放的能量来自于应力或剪切磁场构型的假设。