Parkes observations for project P1101 semester 2021APRS_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 search for potential periodicity and study emission properties over an extremely wide bandwidth with high sensitivity.

我们提议利用帕克斯超宽带系统（Parkes UWL system）对高度活跃的重复暴源FRB 190520（快速射电暴，Fast Radio Burst）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范围内最活跃的快速射电暴，还在2至3 GHz频段表现出独特的行为特征。这使得超宽带系统成为对该重复暴源开展深入研究的理想设备。通过本项目，我们预计能探测到FRB 190520的大量爆发样本；同时，与500米口径球面射电望远镜（FAST）合作，我们将搜寻潜在的周期性特征，并在极宽的带宽范围内以高灵敏度研究其辐射特性。