Parkes observations for project P1101 semester 2021APRS_02

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.

我们提出利用帕克斯UWL（Parkes UWL）系统，对一颗极为活跃的重复快速射电暴（Fast Radio Burst，FRB）~190520开展每两周一次的监测。当前观测结果表明，FRB~190520不仅是帕克斯望远镜可观测到的最活跃快速射电暴，还在2至3吉赫兹（GHz）频段展现出独特的爆发行为。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。通过本观测计划，我们预计将探测到FRB~190520的大量爆发样本；同时将与500米口径球面射电望远镜（Five-hundred-meter Aperture Spherical radio Telescope，FAST）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。