Parkes observations for project P1330 semester 2025APRS_02

We discovered PSR J1716-2808A (NGC6316A), a highly accelerated binary millisecond pulsar (MSP), in the globular cluster NGC6316. We previously used Parkes to solve the orbit of this MSP and are currently timing it (P1330). We have five scheduled observations remaining in the OCT2024 semester. The goal of the proposed observations is to establish a year and a half long timing campaign with at least a year of monthly cadence observations. 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, thereby creating a three year timing baseline. A secondary advantage of having these observations is that the data can also be used time any new pulsars that are discovered in any subsequent observations.

我们在球状星团NGC6316中发现了PSR J1716-2808A（又名NGC6316A）——一颗处于高速加速状态的双星毫秒脉冲星（millisecond pulsar，MSP）。我们此前曾利用帕克斯望远镜（Parkes）解算该MSP的轨道参数，目前正对其开展计时观测（项目编号P1330）。在2024年10月观测学期中，我们尚有5项计划观测任务待执行。本次拟实施的观测项目旨在启动一项为期一年半的计时观测计划，其中至少包含连续一年的月度频次观测。这对破除脉冲星位置与自转减慢速率之间存在的计时简并问题至关重要。借此我们可将该脉冲星与2022年以来的既往观测数据进行关联，进而构建起为期三年的计时观测基线。该观测项目的另一项附加优势在于，其获取的数据还可用于对后续观测中发现的所有新脉冲星开展计时观测。