Improving Solar Physics Content In Astronomy Courses

提高天文学课程中的太阳物理内容

• 批准号: 9351279
• 负责人: Jay Pasachoff
• 金额: $ 1.87万
• 依托单位: Williams College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-07-01 至 1995-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9351279&HistoricalAwards=false
• 关键词: Improving; Solar; Physics; Content; Astronomy

9351279 Pasachoff This project is increasing the solar-physics content of both upper-class and freshman undergraduate courses by incorporating into the courses preparation for, observation of, and data reduction from solar eclipse studies at the 3 November 1994 total solar eclipse. The equipment, comprising CCD cameras with suitable filters and digitizing and associated computer equipment, is also being incorporated into use with the on- campus solar telescope in white light and in hydrogen-alpha. The eclipse work is in the framework of a study of the cause of coronal heating, following predictions that surface Alfven waves would lead to oscillations in coronal loops with periods of 1-10 s. Earlier versions of this experiment have been carried out at two eclipses, with extensive student participation at home and on site, and found indications of excess power at these periods in our Fourier analysis. There was an improved version on site for the 1991 total solar eclipse, with even more extensive student participation, but cloudy weather prevented observation. There is a complementary research grant to perform this experiment at the 3 November 1994 eclipse in South America, Observations will be made with intensified CCD cameras, frame grabbers, and computer digitizing and recording, instead of the fiber-optics strands and photomultipliers in the existing experimental setup. Student participation with the equipment requested here includes students in the Freshman Seminar and the junior/senior solar-physics seminar as well as students participating in the expedition on site. The data and equipment will remain useful on campus, with the telescopes and in the courses, for years to follow. ***

9351279 Pasachoff这个项目通过将1994年11月3日日全食日食研究的准备、观测和数据整理纳入课程，增加了高年级和大一本科生课程的太阳物理学内容。该设备包括带有适当滤光片的CCD照相机和数字化及相关的计算机设备，也正在与校园内的白光和氢- α太阳望远镜结合使用。日食研究是在日冕加热原因研究的框架内进行的，根据预测，表面阿尔芬波将导致日冕环的振荡，周期为1-10秒。这个实验的早期版本已经在两次日食中进行了，有大量的学生在家和现场参与，并在我们的傅立叶分析中发现了这些时期能量过剩的迹象。1991年的日全食现场有一个改进的版本，有更多的学生参与，但阴天的天气阻碍了观测。在1994年11月3日南美洲日食时进行这项实验有一笔补充研究补助金，观测将使用增强的CCD照相机、画面捕捉器和计算机数字化和记录，而不是现有实验装置中的光纤链和光电倍增管。使用设备的学生包括参加大一研讨会和大三/大四太阳物理研讨会的学生，以及参加现场考察的学生。在接下来的几年里，这些数据和设备将继续在望远镜和课程中发挥作用。＊＊＊