Interstellar Matter and Magnetic Fields

星际物质和磁场

• 批准号: 9530590
• 负责人: Carl Heiles
• 金额: $ 43.9万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-06-15 至 2002-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9530590&HistoricalAwards=false
• 关键词: Interstellar; Matter; Magnetic; Fields

AST 9530590 Interstellar Matter and Magnetic Fields. In interstellar space the magnetic energy density is usually comparable to the turbulent energy density so that the field plays a very strong role in all physical processes. However, measurements of the magnetic field strength are very difficult because they are subject to contamination by instrumental effects, and the required sensitivity is high. Accordingly our knowledge of magnetic fields is limited by the observational data base. With this award Dr. Heiles will vigorously expand the data base on interstellar magnetic fields with observations of Zeeman splitting of atomic hydrogen, the hydroxyl radical, and radio recombination lines. He will also pursue morphological and kinematic studies of the diffuse interstellar medium in our Galaxy. ===============================================

AST 9530590星际物质和磁场。 在星际空间中，磁能密度通常与湍流能量密度相当，因此该场在所有物理过程中都起着非常强大的作用。 但是，磁场强度的测量非常困难，因为它们会受到仪器效应的污染，并且所需的灵敏度很高。 因此，我们对磁场的了解受观察数据库的限制。 有了这个奖项，Heiles博士将通过观察原子氢，羟基自由基和无线电重组线的Zeeman分裂的观察，从而大力扩大星际磁场的数据基础。 他还将对我们的银河系中弥漫性星际培养基进行形态学和运动学研究。 ==============================================