Studying Galactic and Intergalactic Magnetism with LOFAR

使用 LOFAR 研究银河系和星际间的磁力

• 批准号: 1029497
• 负责人: Evan Scannapieco
• 金额: $ 14.94万
• 依托单位: Arizona State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-01 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1029497&HistoricalAwards=false
• 关键词: Studying; Galactic; Intergalactic; Magnetism; LOFAR

In this IRES project, U.S. graduate and undergraduate students under the direction of Professor Evan Scannapieco at Arizona State University will carry out forefront studies of cosmic magnetism with the Low Frequency Array (LOFAR), a remarkable new European radio telescope. Due to its sensitivity, resolution, and frequency coverage, LOFAR will allow for magnetic field measurements that are orders of magnitude better than previous constraints. Over the course of three years, a total of 15 U.S. students will make use of this instrument in collaboration with the German Long Wavelength Consortium and Prof. Marcus Brüggen of Jacobs University in Bremen, helping to open a new window on the magnetic universe.Magnetic fields thread the universe, yet very little is known about their properties. On galaxy scales, students will probe the connection between star formation and magnetism and the origin of the magnetic fields that surround galaxies. On galaxy cluster scales, they will study the unknown physics of the hot intracluster medium and the evolution of the mysterious "radio relics." On cosmic scales, they will uncover the magnetic properties of the filamentary web of gas that connects all galaxies. Each of these projects will not only shed new light on the structure of the magnetic universe, but help students to build the expertise necessary to play a leading role in the impressive series of international, low-frequency radio experiments that will take place over the next decade.

在这个IRES项目中，美国研究生和本科生在亚利桑那州立大学的Evan Scannapieco教授的指导下，将利用低频阵列（LOFAR）进行宇宙磁性的前沿研究，这是一个引人注目的新欧洲射电望远镜。 由于其灵敏度、分辨率和频率覆盖范围，LOFAR将允许比以前的限制好几个数量级的磁场测量。 在三年的时间里，共有15名美国学生将与德国长波联盟和不莱梅雅各布斯大学的马库斯·布鲁根教授合作使用这台仪器，帮助打开一扇关于磁宇宙的新窗口。磁场贯穿宇宙，但对其性质知之甚少。 在星系尺度上，学生将探索星星形成和磁性之间的联系，以及星系周围磁场的起源。在星系团尺度上，他们将研究热的团内介质的未知物理学和神秘的“射电遗迹”的演化。“在宇宙尺度上，他们将揭示连接所有星系的气体网络的磁性。 这些项目中的每一个不仅将揭示磁宇宙的结构，但帮助学生建立必要的专业知识，发挥在令人印象深刻的一系列国际，低频无线电实验，将在未来十年的主导作用。