Parkes observations for project P892 semester 2016OCTS_BPSR_23

SUPERBx is an extension to the SUPERB survey which looks at the highest Galactic latitudes in a search for fast radio bursts (FRBs). Our most recent results show that there is a strong Galactic latitude dependence to FRB detectability with the detection rate being 4 times higher ~45 degrees and higher above the plane; this is where SUPERBx will focus its efforts from now on. 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 four 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 in 2016) 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巡天项目的扩展，旨在通过观测最高银道纬度区域搜索快速射电暴（FRB）。我们最新的研究结果表明，FRB的可探测性存在显著银道纬度依赖性——在银道面以上约45度及更高纬度处，探测率高出4倍；这正是SUPERBx今后重点研究的方向。SUPERBx采用优化的GPU代码搜索脉冲星和快速射电暴（FRB），实现实时发现。在平方公里阵列望远镜（SKA）一期时代，实时处理输入数据至关重要，因此本工作可直接应用于下一代望远镜的高数据率场景。本项目中已发现的4个FRB，其相关信息远多于以往所有探测结果。首先，我们的发现延迟仅约1秒，而非数月或数年。帕克斯望远镜的观测将与其他射电望远镜（尤其是经过翻新的莫隆戈望远镜——其性能已达到2016年独立发现3个FRB的水平）协同进行，以实现对所发现FRB的定位；随后将酌情触发一系列光学及高能望远镜。这对于确定FRB的宿主星系、破解其起源之谜，以及将其作为精密宇宙学测量工具加以利用至关重要。