Investigations of Auroral Excitation Processes: Emphasis onVegard-Kaplan and Green Line Production Mechanisms

极光激发过程的研究：重点是 Vegard-Kaplan 和 Green Line 产生机制

• 批准号: 8912154
• 负责人: W. Benesch
• 金额: $ 21万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-02-01 至 1994-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8912154&HistoricalAwards=false
• 关键词: Investigations; Auroral; Excitation; Processes; Emphasis

There is a developing interest in using optical emissions associated with the aurora to determine the global energy input into the atmosphere from particles precipitating from the magnetosphere and its interaction with the solar wind. To be able to do this requires a basic understanding of the excitation mechanisms for these emissions. This project is a controlled laboratory experiment to investigate many of these excitation mechanisms. Among them is the generation of a particular excited state of molecular nitrogen (A u ) to determine its role in the production of the green line of atomic oxygen (5577 A). Emission excitation mechanisms for this radiation are still unclear even though it is the strongest visible region auroral emission and one of the first emissions identified in the auroral spectrum.

人们对利用与极光有关的光学发射来确定从磁层沉淀的粒子输入到大气中的全球能量及其与太阳风的相互作用的兴趣日益浓厚。要做到这一点，需要对这些发射的激发机制有一个基本的了解。这个项目是一个受控的实验室实验，以研究许多这些激励机制。其中是产生特定激发态的分子氮（a u），以确定其在产生原子氧（5577 a）绿线中的作用。这种辐射的发射激发机制仍然不清楚，尽管它是最强的可见区域极光发射和在极光光谱中最早确定的发射之一。