Parkes observations for project P1101 semester 2021OCTS_12

We propose to carry out fortnightly monitoring of a very active repeater, FRB~190520, with the Parkes UWL system. Our current observations show that FRB~190520 is not only the most active FRB that can be observed with Parkes, but also shows unique behaviour at 2 to 3 GHz frequency. This makes UWL the ideal instrument to carry out in-depth studies of this repeating FRB. With this program, we expect to detect a large sample of bursts from FRB~190520, and in collaboration with the FAST telescope we will study emission properties, fluence distributions and polarisation properties over an extremely wide bandwidth with high sensitivity.我们提出将利用帕克斯（Parkes）UWL系统，对极度活跃的重复快速射电暴（Fast Radio Burst，FRB）FRB 190520开展每两周一次的监测。当前观测结果显示，FRB 190520不仅是帕克斯望远镜可观测到的活跃度最高的快速射电暴，同时在2至3 GHz频段展现出独特的行为特征。这使得UWL系统成为针对该重复快速射电暴开展深入研究的理想仪器。通过本观测项目，我们预计将探测到FRB 190520的大量暴事件样本；同时将与FAST（Five-hundred-meter Aperture Spherical Telescope）望远镜展开合作，在极宽带宽下以高灵敏度研究其辐射特性、能流分布与偏振特性。