Parkes observations for project P1040 semester 2020OCTS_08

We have re-processed all the observations in the Parkes pulsar data archive obtained during the first four years of the Parkes multibeam receiver and have discovered two new fast radio bursts (FRBs) and five single pulse candidates (SPCs) from unknown sources, but with Galactic dispersion measures. These signals were only detected in a single beam of the receiver suggesting that they are unlikely to be terrestrial. There are no known pulsars in the pointing direction of the five SPCs and therefore are likely giant pulses from currently unknown pulsars. Using the Ultra Wideband Low (UWL) receiver we have opportunity to detect repeating signals from the two FRBs and to confirm the five SPCs. Our previous observations have obtained new detections for one of these targets and therefore confirming that source. Therefore we propose for more observation in an attempt to confirm the remainder and to study the newly discovered source.

我们对帕克斯（Parkes）多波束接收机运行首四年间获取的帕克斯脉冲星数据档案中的全部观测数据进行了重新处理，从未知来源中发现了两例新的快速射电暴（fast radio bursts, FRBs）以及五例单脉冲候选体（single pulse candidates, SPCs），上述信号均带有银河系色散量。这些信号仅在接收机的单个波束中被探测到，提示其不太可能为地面干扰信号。五例单脉冲候选体的观测指向方向上不存在已知脉冲星，因此它们大概率源自当前尚未被发现的脉冲星的巨脉冲。借助超宽带低（Ultra Wideband Low, UWL）接收机，我们有望探测到两例快速射电暴的重复信号，并完成对这五例单脉冲候选体的验证。我们此前的观测已对其中一个目标实现了新的探测，从而确认了该源的存在。因此，我们申请开展更多观测，以期验证剩余候选体并对新发现的源开展研究。