Parkes observations for project P1330 semester 2024OCTS_03

We discovered PSR J1716-2808A (NGC6316A), a highly accelerated binary millisecond pulsar (MSP), in NGC6316. We are currently observing it with Parkes (P1330) to solve for the orbit. At the time of this proposal submission, we have not yet solved the orbit. We have 6 scheduled observations in August 2024, which we expect to provide a good orbital solution to use in the proposed observations for this proposal. The goal of the proposed observations is to conduct a year long timing campaign. This is crucial to break the timing degeneracy that occurs between the pulsar's position and the pulsar's spindown rate. We will be able to use this to connect the pulsar to our previous observations spanning back to 2022. This will also confirm whether the pulsar is a part of the cluster. A secondary advantage of having these observations is that the data can also be used to search for faint pulsars via stack searching and time any new pulsars that are discovered in any subsequent observations.

我们在NGC6316星团中发现了PSR J1716-2808A（即NGC6316A），这是一颗高加速度双星毫秒脉冲星（millisecond pulsar, MSP）。目前我们正利用帕克斯望远镜（Parkes, P1330）对其开展观测以求解轨道参数。在本申请书提交之际，我们尚未完成轨道参数的求解工作。我们已规划2024年8月的6次观测计划，预期这些观测将获取可靠的轨道解，可用于本申请中提出的后续观测。本申请提出的观测目标为开展为期一年的计时观测项目。这一工作对于破解脉冲星位置与自转减慢速率之间存在的计时简并（timing degeneracy）问题至关重要。通过该项工作，我们能够将该脉冲星与2022年以来的所有既往观测结果进行关联，同时也可验证该脉冲星是否属于该星团成员。此外，本次观测获取的数据还具备一项额外优势：可通过堆叠搜寻（stack searching）技术搜寻暗弱脉冲星，并对后续观测中发现的任意新脉冲星开展计时分析。