Parkes observations for project P1006 semester 2019APRS_19

We propose observations with the ultra-wide-bandwidth, low-frequency receiver installed at the Parkes telescope to carry out the first ultra-high time resolution, coherently de-dispersed search for pulsars in globular clusters. We have chosen the 11 most likely clusters for new discoveries. These clusters all have at least three pulsars already known allowing us to have a precise estimate of the pulsar dispersion measures and our observations will provide the first ultra-wide-bandwidth observation of these pulsars. Our observing strategy will enable us to search for extremely narrow pulsars and even pulsars with sub-millisecond periods.

我们提议利用安装于帕克斯望远镜（Parkes telescope）的超宽带宽低频接收机开展观测，以完成球状星团（globular clusters）内脉冲星的首次超高时间分辨率相干去色散搜寻工作。我们遴选了11个最具新脉冲星发现潜力的星团：这些星团目前均已发现至少3颗已知脉冲星，借此可精准估算脉冲星的色散量（dispersion measure）；同时本次观测将为这些已知脉冲星提供首次超宽带宽观测数据。我们的观测策略将支持搜寻极窄脉冲星乃至亚毫秒周期脉冲星。