Interstellar Scattering in Radio Astronomy

射电天文学中的星际散射

• 批准号: 9414144
• 负责人: Barney Rickett
• 金额: $ 16.5万
• 依托单位: University of California-San Diego
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-03-15 至 1998-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9414144&HistoricalAwards=false
• 关键词: Interstellar; Scattering; Radio; Astronomy

9414144 Rickett Drs. Rickett and Coles will study the scattering of radiowavelength radiation as it passes through the interstellar plasma. The motivation for the research is twofold: first to understand the scattering and so predict the distorting effects of interstellar wave propagation for radio astronomers; second to record the distortions and scattering and to interpret them as a way of studying the distant ionized interstellar medium. In the first case the scattering causes a galactic seeing problem for radio astronomers; in the second case the details of the scattering provide a signal which can be used to remotely probe the characteristics of the very diffuse interstellar plasma.

9414144 Rickett博士Rickett和Coles将研究无线电波长辐射穿过星际等离子体时的散射。这项研究的动机有两个：首先是为了了解散射，从而为射电天文学家预测星际波传播的扭曲效应；第二，记录扭曲和散射，并将其解释为研究遥远电离星际介质的一种方式。在第一种情况下，散射给射电天文学家带来了星系观测问题；在第二种情况下，散射的细节提供了一个信号，可以用来远程探测非常弥漫的星际等离子体的特征。