Parkes observations for project P892 semester 2017OCTS_BPSR_40

SUPERBx is an extension to the SUPERB survey which looks at the highest Galactic latitudes in a search for fast radio bursts (FRBs). We will focus our efforts at high Galactic latitudes where our previous work has shown FRB detectability to be as much as 3 times higher than in the plane. SUPERBx uses optimised GPU codes to search for pulsars and fast radio bursts (FRBs), making discoveries in real time. Handling our data as it comes in is essential for the SKA Phase I era so this work applies directly to the high-data rates of next generation telescopes. The FRBs discovered (we have already discovered five FRBs in this project) will have much more associated information than all previous detections. Firstly our discovery lag is ~1 second, rather than months/years. The Parkes observations will be shadowed by other radio telescopes (in particular the refurbished Molonglo which has now reached a level of performance where it has independently discovered 3 FRBs) to allow localisation of the discovered FRBs, and a host of optical and high-energy telescopes will then be triggered as appropriate. This is key for identifying FRB host galaxies, so as to solve the mystery of their progenitors and to exploit their many uses as tools for precision cosmology measurements.SUPERBx是SUPERB巡天的扩展项目，旨在对极高银纬天区开展快速射电暴（fast radio bursts, FRBs）搜寻工作。本项目将观测重点置于高银纬区域——根据我们过往的研究，该区域的FRB探测灵敏度较银道面高至多3倍。SUPERBx采用优化后的图形处理器（Graphics Processing Unit, GPU）代码开展脉冲星与快速射电暴（FRBs）搜寻，可实现实时科学发现。在平方公里阵列射电望远镜（Square Kilometre Array, SKA）第一阶段的观测范式中，实时处理传入数据是核心需求，因此本项目的技术方案可直接适配下一代望远镜的高数据率处理要求。本项目已发现的FRBs（目前已在此项目中探测到5例）将附带远超过往所有探测案例的关联信息：其一，本项目的发现延迟仅约1秒，而非数月乃至数年。帕克斯望远镜的观测将与其他射电望远镜协同开展（尤其是已完成升级、性能已达可独立探测3例FRBs的莫隆格洛望远镜），以实现对已发现FRBs的精确定位；随后将根据观测需求触发多台光学与高能望远镜开展后续观测。这一步骤对于识别FRB宿主星系至关重要，可为揭开其起源之谜、并将其作为精密宇宙学测量工具的诸多应用场景提供关键支撑。