Scaling Dynamics of Photospheric Fields and the Problem of Energy Release in the Upper Solar Atmosphere

光球场的尺度动力学和太阳高层大气中的能量释放问题

• 批准号: 9987305
• 负责人: Ana Cadavid
• 金额: $ 15.68万
• 依托单位: The University Corporation, Northridge
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-09-01 至 2003-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9987305&HistoricalAwards=false
• 关键词: Scaling; Dynamics; Photospheric; Fields; Problem

Abstract: ATM 99-87305Proposal Title: Scaling Dynamics of Photospheric Fields and the Problem of Energy Release in the Upper Solar AtmospherePrincipal Investigator: Ana C. Cadavid The investigators will work to understand the evolution in space and time of magnetic flux, intensity and free energy at scales below the resolution of observations. The main effort is to fit sophisticated mathematical spectral functions to the observations of the larger scales and then extrapolate to the small scales below the limit of observational resolution to see what can be learned about heating the solar corona. The corona that provides both the solar wind and the X-ray emission of the Sun and, so far, the energy input that maintains the temperature is not firmly established. Specifically, the investigators will separate the cellular and turbulent components of the motion in the photosphere, which is of prime interest in the basic problem of coronal heating. Occasional mysterious rapid motion of magnetic footpoints has to date received little attention, in spite of its potential contribution to coronal heating. The investigation is intended to quantify the energy contribution that the sudden motions make.

摘要：ATM 99- 87305提案题目：光球场的标度动力学和太阳上层大气能量释放问题。卡达维德研究人员将致力于了解磁通量、强度和自由能在低于观测分辨率的尺度上在空间和时间上的演变。主要的工作是将复杂的数学光谱函数与较大尺度的观测结果相拟合，然后外推到观测分辨率极限以下的小尺度，以了解如何加热日冕。日冕提供太阳风和太阳的X射线发射，到目前为止，维持温度的能量输入还没有牢固建立。具体来说，研究人员将分离光球运动的细胞和湍流成分，这是日冕加热基本问题的主要兴趣。偶尔神秘的快速运动的磁足迹迄今已收到很少的关注，尽管其潜在的贡献日冕加热。调查的目的是量化的能量贡献，突然的运动。