Parkes observations for project P1088 semester 2020OCTS_04

We propose a targeted pulsar survey of twelve candidate sources that display interplanetary scintillation or linear polarisation in lower frequency observations using the Murchison Widefield Array (MWA). Known pulsars have been detected using these characteristics. We request 12 hours of Parkes observations using the UWL receiver and back-end to conduct a sensitive and thorough pulsar search using novel techniques. Targeted searches for pulsars using imaging surveys have been revived in recent years due to the availability of new sensitive, broadband, widefield surveys using SKA precursors/pathfinders, and have already resulted in pulsar discoveries. Discovering new pulsars provides prospects for many science cases because pulsars provide powerful probes of the ISM and fundamental physics either individually or as a population.

本研究提出一项针对12个候选源的靶向脉冲星巡天计划：这些源在利用默奇森宽场阵列（Murchison Widefield Array，MWA）开展的低频观测中，呈现出行星际闪烁或线偏振特征。已有研究借助此类特征成功探测到已知脉冲星。我们申请开展12小时的帕克斯望远镜观测，使用UWL接收机与后端系统，以采用创新性技术开展高灵敏度、全覆盖的脉冲星搜寻工作。近年来，得益于平方公里阵列（Square Kilometre Array，SKA）前兆/探路者望远镜所提供的高灵敏度、宽频带、大视场巡天设备，利用成像巡天开展脉冲星靶向搜寻的研究再度复兴，且已成功发现多颗脉冲星。发现新脉冲星可为诸多科学研究方向提供重要前景，这是因为脉冲星无论是作为独立天体还是天体群体，均为星际介质（Interstellar Medium，ISM）与基础物理研究提供了强有力的探测手段。