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Submillimeter Observations of the Sun at the Caltech Submillimeter Observatory and the James Clerk Maxwell Telescope

加州理工学院亚毫米天文台和詹姆斯·克拉克·麦克斯韦望远镜对太阳的亚毫米观测

基本信息

批准号：
8717833
负责人：
Charles Lindsey
金额：
$ 5.5万
依托单位：
University of Hawaii
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1989
资助国家：
美国
起止时间：
1989-04-15 至 1991-03-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=8717833&HistoricalAwards=false
关键词：
Submillimeter Observations Sun Caltech Observatory

项目摘要

This grant will permit a series of observations of the Sun at submillimeter wavelengths using the 15 m James Clerk Maxwell Telescope (JCMT), which has recently become operational on Mauna Kea. This new telescope will allow observations of the Sun with an angular resolution far better than that attainable in the past. The program proposed here will have two parts: (1) detailed observations of solar intensity oscillations over a range of wavelengths; (2) observations of the photometric output of the sun; this will lead to a better model of the temperature distribution on the solar surface. These topics are highly relevant to chromospheric structure and dynamics and hence solar terrestrial research. Part of the motivation in funding this research program is the exciting opportunity provided by new powerful facilities to explore an area previously inaccessible because of technical limitations. But more than this, submillimeter observations offer the unique diagnostic advantage that the spectral line formation is simple and well understood. The program is of fundamental importance for clarifying the structure and dynamics of the solar atmosphere. A broader purpose is to open the submillimeter telescopes at Mauna Kea to the unlimited possibilities of submillimeter and millimeter solar research.//

这笔赠款将允许使用15米詹姆斯·克莱克·麦克斯韦望远镜(JCMT)在亚毫米波长对太阳进行一系列观测，该望远镜最近已在莫纳克亚投入使用。这个新的望远镜将能够以比过去更好的角度分辨率来观测太阳。这里提出的计划将包括两部分：(1)在一定波长范围内对太阳强度振荡的详细观测；(2)对太阳光度输出的观测；这将导致对太阳表面温度分布的更好模型。这些主题与色球的结构和动力学高度相关，因此与日地研究密切相关。资助这项研究计划的部分动机是，新的强大设施提供了令人兴奋的机会，可以探索以前因技术限制而无法进入的区域。但更重要的是，亚毫米级的观测提供了独特的诊断优势，即光谱线的形成简单且易于理解。该计划对于澄清太阳大气的结构和动力学具有重要意义。一个更广泛的目的是让莫纳克亚的亚毫米望远镜接触到亚毫米和毫米太阳研究的无限可能性。