Parkes observations for project P1183 semester 2023APRS_17

A new energetic repeating FRB 20220529 can be observed by both FAST and Parkes telescopes and the simultaneous observing time is up to one hour. We have observed this source using Parkes UWL green time and in total 21 bursts have been detected. Two bursts of them have the corresponding simultaneous FAST observations. Only one burst has 4-pol datasets and is bright enough to analyse the polarization properties. Therefore, we propose to continue the monitoring of the source of FRB 20220529 using the Parkes UWL with high-time resolution and 4-pol observation. The new proposed observation aims to: (1)detect more bursts by Parkes UWL with full polarization information; (2) detect more bursts by Parkes UWL with corresponding simultaneous FAST observations; (3) study the radiation spectrum by more bursts detected in simultaneous observations of Parkes and FAST; (4) study the burst microstructure using high time resolution datasets, and (5) study the frequency ranges changes of the repeating bursts.

一颗全新的高能重复快速射电暴（Fast Radio Burst, FRB）20220529可被500米口径球面射电望远镜（Five-hundred-meter Aperture Spherical radio Telescope, FAST）与帕克斯射电望远镜（Parkes Telescope）共同观测，二者的同步观测总时长可达一小时。我们已通过帕克斯射电望远镜的超宽频低频（UWL）观测系统绿色通道观测时段对该源开展观测，总计探测到21次爆发事件。其中2次爆发事件同步获取了FAST的配套观测数据。仅1次爆发事件具备全偏振（4-pol）数据集，且亮度足够用于偏振特性分析。因此，我们提议利用帕克斯射电望远镜的UWL系统，以高时间分辨率与全偏振观测模式继续对FRB 20220529源开展监测工作，本次拟开展的新观测目标如下：(1)借助帕克斯UWL系统探测更多携带完整偏振信息的爆发事件；(2)借助帕克斯UWL系统探测更多爆发事件，并同步获取FAST的配套观测数据；(3)通过帕克斯与FAST同步观测获得的更多爆发事件，研究其辐射光谱特性；(4)利用高时间分辨率数据集分析爆发的精细结构；(5)探究重复爆发的频率范围变化特征。