Parkes observations for project P1101 semester 2021APRS_08

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 search for potential periodicity and study emission properties over an extremely wide bandwidth with high sensitivity.

我们提议借助帕克斯UWL系统，对活跃度极高的重复快速射电暴FRB~190520（Fast Radio Burst, FRB）开展双周监测。我们当前的观测结果显示，FRB~190520不仅是帕克斯望远镜可观测到的最为活跃的快速射电暴，还在2至3 GHz频段展现出独特的辐射行为。这使得UWL系统成为开展该重复快速射电暴深度研究的理想仪器。通过本观测项目，我们预计将从FRB~190520中探测到海量爆发事件，并将与500米口径球面射电望远镜（Five-hundred-meter Aperture Spherical radio Telescope, FAST）展开合作，搜寻潜在的周期性信号，并以高灵敏度在极宽带宽范围内研究其辐射特性。