Collaborative Research: Magnetic Filaments at the Center of our Milky Way Galaxy

合作研究：银河系中心的磁丝

• 批准号: 1615375
• 负责人: Cornelia Lang
• 金额: $ 30.86万
• 依托单位: University of Iowa
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-09-15 至 2020-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1615375&HistoricalAwards=false
• 关键词: Collaborative; Research; Magnetic; Filaments; Center

Radio astronomers have discovered remarkable magnetic field structures near the center of our Milky Way galaxy. These structures, called filaments, are much more complicated than simple hot clouds of gas. These filaments are many light years in length. The filaments are thought to be visible to radio telescopes because high-energy particles are orbiting along very long magnetic fields. The investigators will study the detailed physical characteristics of these filamentary structures using the NSF Very Large Array (VLA) radio telescope. Museum and public events will be developed at both the University of Iowa and the University of California at Los Angeles.The investigators will study non-thermal filamentary structures observed in the radio images of the Galactic Center. This study will exploit the new capabilities of the VLA, an NSF radio telescope in New Mexico, to obtain detailed physical information of these structures, including polarization analysis. The outcomes of this project have important implications in other fields of astronomy, in particular the study of the active galactic nuclei in other galaxies, and the role of magnetic fields in the environments of accreting black holes. At University of Iowa, the investigator will work with an undergraduate to develop a museum exhibit. The investigators will also participate in the museum activities and lecture series. At the University of California at Los Angles, another investigator will participate in public education events, as well as in training undergraduate students from underrepresented backgrounds.

射电天文学家在银河系中心附近发现了引人注目的磁场结构。 这些被称为细丝的结构比简单的热气体云复杂得多。 这些暗条有许多光年长。 这些细丝被认为是射电望远镜可见的，因为高能粒子沿着沿着很长的磁场轨道运行。 研究人员将使用NSF甚大阵列（VLA）射电望远镜研究这些结构的详细物理特征。 爱荷华州大学和位于洛杉矶的加州大学将举办博物馆和公共活动。调查人员将研究在银河系中心的无线电图像中观察到的非热对流结构。这项研究将利用VLA的新功能，一个NSF射电望远镜在新墨西哥州，以获得详细的物理信息，这些结构，包括偏振分析。该项目的成果对天文学的其他领域具有重要意义，特别是对其他星系中活动星系核的研究，以及磁场在吸积黑洞环境中的作用。在爱荷华州大学，研究人员将与一名本科生合作开发一个博物馆展览。调查人员还将参加博物馆的活动和系列讲座。在洛杉矶的加州大学，另一名调查员将参加公共教育活动，以及培训来自代表性不足背景的本科生。