Parkes observations for project P834 semester 2018OCTS_10

Finding the pulsar born in SN 1987A would be of major significance. It would be by far the youngest pulsar known and would enable unique investigations of the early evolution and birth properties of a pulsar, as well as acting as a probe of the circumstellar and interstellar medium. We propose to use the new Ultra-Wideband Low (UWL) receiver to attempt confirmation of dispersed pulse candidates from previous P834 observations, to search for more isolated (giant) pulses and to continue the search for periodic emission from a pulsar associated with SN 1987A. The UWL receiver, with its much wider bandwidth and much lower system noise compared to the 10cm/50cm system will allow searches with much higher sensitivity.

探测到1987A超新星（SN 1987A）爆发产生的脉冲星（pulsar），具有极为重要的科学意义。该脉冲星将是目前已知最年轻的脉冲星，可开展独一无二的脉冲星早期演化与诞生特性研究，同时还可作为星周介质（circumstellar medium）与星际介质（interstellar medium）的探测探针。我们提议使用新型超宽带低（Ultra-Wideband Low, UWL）接收机，对此前P834观测中得到的色散脉冲候选体进行确认，搜寻更多孤立（巨）脉冲，并持续搜索与1987A超新星相关联的脉冲星的周期性辐射。相较于10厘米/50厘米波段系统，这款UWL接收机拥有更宽的带宽与更低的系统噪声，可实现灵敏度大幅提升的探测工作。