Continued Investigation of Low Intensity Emission Lines from the Interstellar Medium

对星际介质的许多不同的观测提供了证据，证明在明亮的、局部的、明确的电离氢区域之外，弥漫气体发生了显著的电离。最近关于这个问题的评论将这种温暖的电离气体作为星际介质的四个主要阶段之一。雷诺兹博士在威斯康辛大学的观测项目已经成为关于星际介质（ISM）的温暖电离阶段的主要信息来源。该项目的目的是通过研究气体的微弱发射线来研究ISM的物理状态以及电离和激发气体的机制。为此专门研制了高分辨率法布里-珀罗光谱仪。

Many diverse observations of the interstellar medium have provided evidence for significant ionization of the diffuse gas which is outside of bright, localized, well defined regions of ionized hydrogen. Recent reviews on the subject refer to this warm, ionized gas as one of the four major phases of the interstellar medium. Dr. Reynolds' observing program at the University of Wisconsin has become the primary source of information about the warm, ionized phase of the interstellar medium (ISM). The objective of the project is to investigate the physical state of the ISM and the mechanisms which ionize and excite the gas through the study of faint emission lines from the gas. A high resolution Fabry-Perot spectrometer has been specially developed for this investigation.