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

该项目的目标是继续一项非常成功的计划，利用欧文斯山谷射电天文台的40米射电望远镜监测blazar和射电星系的15 GHz通量密度。闪耀星是高亮度和高活性的射电、光学、X射线和射线辐射源，由星系核中的大质量黑洞提供动力。通过将射电光曲线与NASA费米伽马射线空间望远镜的同时射线光曲线进行比较，该项目将有助于阐明这些天体中的发射机制、能源和喷射准直过程。特别是，测量无线电和射线耀斑之间的时间延迟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。这项工作的广泛影响包括对本科生和研究生的培训。获奖者将继续与喷气推进实验室的同事以及金石苹果谷射电望远镜和刘易斯教育研究中心的同事合作，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。教师将把他们的知识和工具带回他们的学校，并将它们应用于高中教学计划。

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.