Interstellar Astrochemistry

星际天体化学

• 批准号: 8915190
• 负责人: Eric Herbst
• 金额: $ 12.5万
• 依托单位: Duke University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-03-01 至 1992-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8915190&HistoricalAwards=false
• 关键词: Interstellar; Astrochemistry

Dr. Eric Herbst at Duke University will continue his three-pronged research effort into gas phase interstellar astrochemistry. This effort will include: modeling studies in which interstellar abundances of molecules in assorted sources are calculated and compared with observational data; calculations of the rates of important reactions difficult to study in the laboratory; and collaborations with experimental investigators in the determination of sundry reaction rate coefficients. During the past twenty years, astronomers have managed to detect the presence of about eighty different molecules in interstellar and circumstellar clouds. The existence of these molecules has stimulated a large amount of research directed towards an understanding of why the molecules are present and how they are produced. Based on past research, it is safe to sayu that many if not most of the molecules detected in clouds can be synthesized from precursor atoms via gas phase processes. Dr. Herbst's research will add to our understanding of the chemistry of dense interstellar clouds.

杜克大学的埃里克·赫布斯特博士将继续他对气相星际天体化学的三管齐下的研究工作。 这项工作将包括： 建模研究，计算各种来源中分子的星际丰度并与观测数据进行比较；计算难以在实验室研究的重要反应的速率；以及与实验研究人员合作确定各种反应速率系数。 在过去的二十年里，天文学家已经成功地探测到星际云和星周云中存在大约八十种不同的分子。 这些分子的存在激发了大量研究，旨在了解这些分子为何存在以及它们是如何产生的。 根据过去的研究，可以肯定地说，在云中检测到的许多（如果不是大多数）分子可以通过气相过程从前体原子合成。 赫布斯特博士的研究将增进我们对致密星际云化学的理解。