Parkes observations for project P1061 semester 2020OCTS_03

Fast Radio Bursts (FRBs) have extremely high brightness temperature, owing to their short-duration and prominent flux from the distant universe. The studies on emission mechanism of FRBs have met bottleneck for a long time unless a complete spectrum is measured. We propose to observe a new repeating FRB source, FRB 180301, using the Parkes ultra-wide-bandwidth receiver (UWL). This source was initially found by Parkes multibeam receivers and confirmed repetition by the FAST telescope. The source is still active until Jun 2020 from FAST follow-ups. It’s an ideal opportunity to capture comprehensive spectral information using the Parkes UWL. We demonstrate that the beam coverage is feasible and 30-hr observations are required for at least one detection.

快速射电暴（Fast Radio Bursts，FRBs）因其来自遥远宇宙的短时标和显著流量，具有极高的亮度温度。长期以来，FRBs辐射机制的研究一直面临瓶颈，除非能测得其完整频谱。我们提议使用帕克斯超宽带接收机（UWL）观测一个新的重复爆发FRB源——FRB 180301。该源最初由帕克斯多波束接收机发现，并经FAST望远镜确认存在重复爆发。根据FAST的后续观测，截至2020年6月该源仍处于活跃状态。这为利用帕克斯UWL获取其全面频谱信息提供了理想契机。我们证明，波束覆盖范围是可行的，且至少需要30小时的观测才能实现一次探测。