RUI: Optical and Radio Studies of Coronal Plasma at the 2017 Eclipse

这个为期3年的项目的主要目标是在2017年8月21日整个北美的日全食期间进行独特的观测活动。 日食观测是独一无二的，因为它们提供了一个难得的机会来发现可能与太阳周期和空间天气有关的新型太阳现象。 该项目对长无线电波长的耀斑区和活跃区进行的高分辨率研究应能提供对空间气象预测可能有用的信息。 对日食日冕的研究一直是威廉姆斯学院系成功吸引和培训学生的主要部分。通过威廉姆斯的需求盲招生政策，越来越多的本科生包括代表性不足的群体的成员，他们与过去的日食探险以及相关的数据简化和分析密切相关。该项目将使威廉姆斯学院的学生能够继续积极参与和接受培训。 此外，由于日全食在可见的国家引起了广泛的公众兴趣，它们为美国公众提供了一个关于天文学的良好教育机会。 因此，该项目直接支持AGS部门在发现，学习，多样性和跨学科研究方面的战略目标。 这个为期3年的项目将利用2017年8月21日的日全食，特别是观察白光日冕，并使用高度处理的图像，带来细节和极端对比度，从而改进对日冕羽流和其他日冕特征的动态测量，特别是日冕物质抛射（CME），并观察绿线（Fe XIV），和红线（Fe X）日冕来对比不同温度的区域。 太阳观测包括用法布里-珀罗望远镜进行的高分辨率观测。 此外，日冕环的高频（1赫兹）功率谱将用于比较日冕加热机制。 光谱观测将使项目小组能够调查太阳活动周期中光谱线比率的变化，因为该周期现在已经过了一个低的最大值，下降到。 包括Jansky甚大阵列在内的射电望远镜将提供有史以来最好的活动区域地图，以确定射电和EUV爆发起源的不同位置。

The main goal of this 3-year project is to enable a unique observational campaign during the 21 August 2017 total solar eclipse across the North America. The eclipse observations are unique because they provide a rare opportunity to discover new types of solar phenomena that may be linked to the solar cycle and space weather. The project's high-resolution studies of flaring and active regions at long radio wavelengths should provide information that is potentially useful for space weather predictions. Studies of the solar corona at eclipses have been a major part of the success of the Williams College department in attracting and training students. Undergraduate students, increasingly including members of underrepresented groups through Williams' need-blind admissions policy, have been intimately connected with the eclipse expeditions in the past and the associated data reduction and analysis. This project would enable the active involvement and training of students at the Williams College to continue. Furthermore, since total solar eclipses are of widespread public interest in the countries from which they are visible, they provide an excellent opportunity for public education in the United States about astronomy in general. Therefore, this project directly supports the Strategic Goals of the AGS Division in discovery, learning, diversity, and interdisciplinary research. This 3-year project is to take advantage of the 21 August 2017 total solar eclipse, especially to observe the white-light corona and work with highly processed images that bring out detail and extreme contrast, allowing improved measurements of dynamics of coronal plumes and other coronal features, especially coronal mass ejections (CMEs), and to observe the green-line (Fe XIV), and red-line (Fe X) coronas to contrast regions of different temperatures. The solar observations include exquisitely high resolution observations with a Fabry-Perot. Also, high-frequency (1 Hz) power spectra of coronal loops will be used to compare mechanisms of coronal heating. Spectrographic observations will allow the project team to investigate changes of the spectral-line ratios over the solar-activity cycle as the cycle, now past a low maximum, declines toward. Radio telescopes, including the Jansky Very Large Array, will provide the best-ever mapping of active regions to pinpoint the different locations of radio and EUV eruption origins.