Parkes observations for project P918 semester 2016APRS

Fast radio bursts (FRBs) are an enigmatic population of energetic radio pulses that are thought to be produced at cosmological distances. While most FRBs have only been seen as a single burst of emission, repeat bursts have recently been identified from FRB 121102 discovered at Arecibo. We propose to follow up the exceptionally bright and well localised FRB 150807 to search for repeated pulses and periodic emission. If the burst is found to repeat, we will be able to confirm the link between Parkes and Arecibo FRBs; if it is found to have periodic emission, we will demonstrate that FRBs are associated with rotating objects such as neutron stars. If neither is found, our results will suggest that there are multiple classes of FRBs.

快速射电暴（Fast Radio Bursts, FRBs）是一类神秘的高能射电脉冲群体，被认为产生于宇宙学距离之外。绝大多数FRBs仅被观测到单次爆发信号，而近期从阿雷西博天文台发现的FRB 121102中，科研人员已成功识别出重复爆发的射电辐射。本研究提议对异常明亮且定位精度优异的FRB 150807开展后续观测，以搜寻其重复脉冲与周期性射电辐射。若该暴存在重复爆发现象，我们将得以证实帕克斯天文台与阿雷西博天文台观测到的FRB之间的物理关联；若其表现出周期性辐射特征，则可证明FRBs与中子星等旋转天体存在明确关联；若上述两种现象均未被观测到，则表明FRBs存在多个不同的类别。