Optical and Radio Uniquely High-Resolution Eclipse Coronal Studies

首席研究员（PI）计划在2012年观测两次日食，它们将发生在美国和澳大利亚。对于2012年5月20日美国西部的日环食，PI计划绘制91厘米和其他波长的长波活跃区域无线电发射图。对于2012年11月13日发生在澳大利亚的日全食，他打算对白光、绿线和红线日冕进行光谱观测，并使用经过高度处理的图像来显示细节和对比度。这些经过处理的图像有望改善对日冕羽和其他日冕特征的寿命和运动的测量。PI的日冕观测将被应用于其他恒星的研究，其中许多恒星的日冕目前正在钱德拉卫星天文台的x射线中被观测到。PI指出，他对长无线电波长的耀斑和活跃区域的高分辨率研究应该为太空天气预测提供潜在有用的信息。PI断言，他在日食期间研究日冕的探险是威廉姆斯学院天文系在吸引和培养物理科学本科生方面取得成功的主要部分。PI通过技术期刊、教科书、国家地理电视节目、dvd和在线流媒体教育视频广泛传播了他过去的研究成果，他将继续努力。日食引起了公众的广泛兴趣，并为天文学和太阳物理学的公众教育提供了独特的机会。

The Principal Investigator (PI) plans to observe two solar eclipses in 2012 that will occur over the USA and Australia. For the 20 May 2012 annular solar eclipse over the western USA, the PI plans to map long wavelength active-region radio emission at 91 centimeter and other wavelengths. For the 13 November 2012 total solar eclipse over Australia, he intends to make optical spectrographic observations of the white-light, green-line, and red-line corona and to work with highly processed images to bring out detail and contrast. These processed images promise to improve measurements of the lifetimes and motions of coronal plumes and other coronal features. The PI's solar corona observations will be applied to the study of other stars, many of whose coronae are currently being observed in x-rays by the Chandra satellite observatory. The PI notes that his high-resolution studies of flaring and active regions at long radio wavelengths should give information potentially useful for space weather predictions. The PI asserts that his expeditions to study the solar corona during eclipses have been a major part of the success of the Williams College Department of Astronomy in attracting and training undergraduate students in the physical sciences. The PI has widely disseminated his past research through technical journals, textbooks, National Geographic television programming, DVDs, and online streaming educational videos, and he will continue these efforts. Eclipses are of widespread public interest and provide unique opportunities for public education about astronomy and solar physics.