A Program of Solar Microwave Spectroscopy for Max '91

Max 91 太阳微波光谱学计划

• 批准号: 8910835
• 负责人: Harold Zirin
• 金额: $ 10.3万
• 依托单位: California Institute of Technology
• 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: 1989-09-01 至 1991-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8910835&HistoricalAwards=false
• 关键词: Program; Solar; Microwave; Spectroscopy; Max

For studies of the solar atmosphere, microwave observations possess a unique sensitivity to magnetic fields which frequently dominate the energetics of the active solar corona. For studies of the flaring atmosphere, the shape and parameterization of the spatially resolved microwave spectrum provide a powerful diagnostic both of the ambient magnetic fields as well as of the electron temperature, density and spectrum. This program of solar microwave spectroscopy is funded in order to exploit this sensitivity for the study of solar flares and the magnetic structure of active regions during the peak of activity in the current solar cycle. The work will be based primarily on observations from the frequency-agile interferometer at the Owens Valley Radio Observatory, which provides high spatial resolution observations at up to 86 frequencies from 1 to 18 GHz. This unique instrument is currently being upgraded so that its combination of imaging and spectroscopy to more complex sources. The studies conducted under this grant will benefit from and contribute to other facets of the MAX'91 program which include soft and hard x-ray and gamma ray imaging as well as other ground-based and balloon observations.//

为了研究太阳大气，微波观测 对磁场具有独特的敏感性， 主导着活跃的日冕的能量。 对于研究 燃烧的大气，形状和参数化的 空间分辨微波光谱提供了一个强大的 诊断环境磁场以及 电子温度、密度和光谱。 这个太阳微波光谱学项目的资金来自于 为了利用这种敏感性来研究太阳耀斑 以及在峰值期间有源区的磁结构。 在当前的太阳活动周期。 这项工作将主要基于来自 欧文斯谷电台的频率捷变干涉仪 天文台，提供高空间分辨率观测 从1到18 GHz的多达86个频率。 这种独特的工具 目前正在升级， 和光谱学应用于更复杂的光源。 根据这项补助金进行的研究将受益于和 有助于MAX'91计划的其他方面，包括 软、硬X射线和伽马射线成像以及其他 地面和气球观测。