Probes of Very Compact Features in Quasars and Interstellar Clouds

类星体和星际云中非常致密特征的探测器

• 批准号: 9116525
• 负责人: Alan Marscher
• 金额: $ 31万
• 依托单位: Trustees of Boston University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-03-01 至 1995-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9116525&HistoricalAwards=false
• 关键词: Probes; Very; Compact; Features; Quasars

This grant supports a study of small, compact features in quasars and other active galactic nuclei through a series of multi- frequency observations extending from the radio to gamma-ray emissions. This research will increase our understanding of the mechanisms that govern quasars, the most distant and energetic power sources in the universe. The grant also supports monitoring of nearby clouds of molecular gas to search for variability in their brightness at certain wavelengths that is expected as the interstellar medium of our own Galaxy moves between us and background sources of radio emission. This study will increase our understanding of the content, structure and distribution of the gas in the Milky Way. This work, led by Drs. Alan Marscher and Thomas Bania of Boston University builds the educational and research infrastructure of astronomy by training new scientists in the technical skills needed to effectively use the new VLBA (Very Long Baseline Array), which is now near completion.

这项拨款支持通过一系列从无线电到伽马射线发射的多频率观测，研究类星体和其他活动星系核的小而紧凑的特征。这项研究将增加我们对类星体机制的理解，类星体是宇宙中最遥远、最具能量的能源。这笔拨款还支持监测附近的分子气体云，以寻找它们在某些波长上的亮度变化，这是我们银河系的星际介质在我们和背景射电发射源之间移动时预计的。这项研究将增加我们对银河系气体含量、结构和分布的了解。这项工作，由博士领导。波士顿大学的Alan Marscher和Thomas Bania通过培训新科学家有效使用新的VLBA（甚长基线阵列）所需的技术技能，建立了天文学的教育和研究基础设施，该阵列现在已接近完工。