Continued Investigation of Low Intensity Emission Lines from the Interstellar Medium

继续研究星际介质的低强度发射线

• 批准号: 9115703
• 负责人: Ronald Reynolds
• 金额: $ 42.5万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-02-15 至 1997-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9115703&HistoricalAwards=false
• 关键词: Continued; Investigation; Low; Intensity; Emission

Dr. Reynolds will continue his investigation into the nature and origin of warm ionized gas in the interstellar medium. This gas is a major, newly identified component of the medium about which very little is known. An accurate understanding of interstellar matter and processes is going to require as thorough an investigation of this ionized component as of the other principal components of the medium. The work will concentrate on observations of the structure and kinematics of the ionized regions, the relationship between the regions of ionized gas and regions of neutral hydrogen at high Galactic latitude, and the ionization conditions within the gas. The observations will be carried out with the large aperture Fabry-Perot spectrometer at the University of Wisconsin, which has made possible the detection and study of the faint optical line emission from this gas, and which as a result has become the primary source of information about the properties of this last major component of the interstellar medium. Developments in the instrumentation will provide significant improvements in the observational capabilities and will help to open up further this new area of interstellar medium astronomy.

雷诺兹博士将继续研究星际介质中温暖电离气体的性质和起源。 这种气体是介质中新发现的主要成分，但人们对此知之甚少。 要准确了解星际物质和过程，就需要对这种电离成分进行彻底的研究，就像对介质的其他主要成分进行彻底的研究一样。 这项工作将集中于观测电离区域的结构和运动学、电离气体区域和高银河纬度中性氢区域之间的关系，以及气体内的电离条件。 这些观测将使用威斯康星大学的大孔径法布里-珀罗光谱仪进行，该光谱仪使得探测和研究这种气体发出的微弱光线发射成为可能，并因此成为有关星际介质最后一个主要成分特性的主要信息来源。 仪器的发展将显着提高观测能力，并将有助于进一步开拓星际介质天文学这一新领域。