Parkes observations for project P1101 semester 2021OCTS_04

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.

我们提议利用帕克斯UWL系统对快速射电暴（Fast Radio Burst，FRB）190520这一高活跃重复暴开展每两周一次的监测。现有观测结果显示，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吉赫频段展现出独特的辐射特性。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。依托本观测项目，我们预计将从FRB 190520中探测到大量暴脉冲样本，并将与500米口径球面射电望远镜（Five-hundred-meter Aperture Spherical Telescope，FAST）开展合作，以极高灵敏度在超宽带宽范围内研究其辐射特性、能流密度分布与偏振特性。