The Radio-Fermi Connection: A Critical Study of Relativistic Jets

射电-费米联系：相对论性喷流的批判性研究

• 批准号: 1109911
• 负责人: Anthony C. Readhead
• 金额: $ 75.19万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-15 至 2016-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1109911&HistoricalAwards=false
• 关键词: Radio; Fermi; Connection; Critical; Study

The goal of this project is to continue a very successful program of monitoring the 15 GHz flux densities of blazars and radio galaxies on the 40m radio telescope at the Owens Valley Radio Observatory. Blazars are highly luminous and highly active sources of radio, optical, x-ray, and γ-ray radiation powered by massive black holes in galactic nuclei. By comparing the radio light curves with simultaneous γ-ray light curves from NASA's Fermi Gamma-Ray Space Telescope the project will help to elucidate the emission mechanisms, energy sources, and jet collimation processes in these objects. In particular, measurement of time-delays between radio and γ-ray flares can tie down the location of the radiation sources and determine whether they are associated with the jets or accretion disks around the black holes.Broader impacts of the work include training of undergraduate and graduate students. The awardees will continue their educational outreach program in collaboration with colleagues at the Jet Propulsion Laboratory and with the Goldstone Apple Valley Radio Telescope and the Lewis Center for Educational Research to bring teachers from US and international schools to California to learn astronomy and modern scientific methods via hands-on experience with radio telescopes. The teachers will take their knowledge and tools back to their schools and apply them in high-school teaching programs.

这个项目的目标是继续一个非常成功的计划，在欧文斯谷射电天文台的40米射电望远镜上监测耀变体和射电星系的15 GHz通量密度。耀变体是由星系核中的大质量黑洞提供能量的高度明亮和高度活跃的无线电、光学、x射线和射线辐射源。通过比较无线电光变曲线与同步γ该项目将有助于阐明这些物体的发射机制、能量来源和喷流准直过程。特别是，无线电和γ射线耀斑可以确定辐射源的位置，并确定它们是否与黑洞周围的喷流或吸积盘有关。这项工作的更广泛影响包括培训本科生和研究生。 获奖者将继续与喷气推进实验室的同事合作，并与戈德斯通苹果谷射电望远镜和刘易斯教育研究中心合作，将美国和国际学校的教师带到加州，通过射电望远镜的实践经验学习天文学和现代科学方法。教师们将把他们的知识和工具带回学校，并将其应用于高中教学计划。