Parkes observations for project P982 semester 2018OCTS_03

We propose observations with the ultra-wide-bandwidth, low frequency receiver installed at the Parkes telescope to carry out the first coherently de-dispersed search for new pulsars in Southern globular clusters. We have chosen the three most likely clusters for new discoveries. We propose to observe each cluster from rise-to-set and will process the resulting data to study the known pulsars (allowing us, for the first time, to study the wide-band properties of their signal), whilst also looking for currently unknown pulsars. We note that the first black-hole--pulsar binary system is likely to be found in a globular cluster environment.

本研究提议依托安装于帕克斯（Parkes）望远镜的超宽带低频接收机（ultra-wide-bandwidth, low frequency receiver），开展南天球状星团内新脉冲星的首次相干去色散搜索（coherently de-dispersed search）工作。我们遴选了最具新脉冲星发现潜力的三个星团作为观测目标，计划对每个星团开展从升起到落下的全时段观测，并将对获取的数据进行处理：一方面研究已知脉冲星，这将使我们首次得以解析其信号的宽带特性；另一方面同步搜寻当前尚未被发现的脉冲星。值得注意的是，首个黑洞-脉冲星双星系统极有可能在球状星团环境中被发现。