Synergistic Studies of Astronomical and Laboratory Spectroscopy

天文和实验室光谱学的协同研究

• 批准号: 0354200
• 负责人: Takeshi Oka
• 金额: $ 80.46万
• 依托单位: University of Chicago
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-07-01 至 2008-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0354200&HistoricalAwards=false
• 关键词: Synergistic; Studies; Astronomical; Laboratory; Spectroscopy

This award supports a synergistic effort of astronomical observations and laboratory spectroscopy. In the astronomical observations, the H3+ molecular ion, the simplest polyatomic species which is produced abundantly by cosmic ray ionization of H2, plays the central role. The large amount of observational data accumulated for H3+, as well as for the diffuse interstellar bands in the visible region of the spectrum, have revealed several new problems all related to the basics of physics, chemistry, and astronomy. The laboratory and analytical efforts are geared to solve these problems and provide new molecular information for astronomical observations. The project will analyze the thermalization of H3+ among the rotational levels, provide spectra of important molecular ions and radicals, and attempt to analyze and reproduce laboratory spectra for the diffuse interstellar bands. In terms of broader impact, this work provides an excellent vehicle for the education of students across multiple fields. At the same time, disciplinary boundaries are broken down in the attempt to study two fields from a unified point of view.Support for this project is provided by the Divisions of Physics, Chemistry, and Astronomy in the Mathematical and Physical Sciences Directorate.

该奖项支持天文观测和实验室光谱学的协同努力。在天文观测中，H3+分子离子是宇宙线电离H2大量产生的最简单的多原子物种，起着核心作用。对H3+以及可见光谱区域的弥漫星际带积累的大量观测数据揭示了一些与物理学、化学和天文学基础有关的新问题。 实验室和分析工作旨在解决这些问题，并为天文观测提供新的分子信息。 该项目将分析H3+在转动能级之间的热化，提供重要分子离子和自由基的光谱，并试图分析和再现弥漫星际带的实验室光谱。就更广泛的影响而言，这项工作为跨多个领域的学生教育提供了一个很好的工具。 与此同时，打破学科界限，试图从统一的角度研究两个领域。该项目由数学和物理科学理事会的物理学，化学和天文学部门提供支持。