Parkes observations for project P1050 semester 2021OCTS_22

This is a request for observing time for the timing campaign of new pulsar discoveries from the reprocessing of the low-latitude Galactic plane section of the HTRU survey (P630). We have now completed 90 % of the survey with GPU based coherent acceleration search, template bank and fast folding algorithm pipelines, and now have discovered 92 previously unknown pulsars and 8 "class A" pulsars awaiting confirmation. Interesting science can usually only be derived from a new pulsar after confirmation and a follow-up timing campaign is carried out. One year of initial timing is the minimum timespan required to fully characterise any newly-discovered pulsars, essential for deriving pulsar parameters such as the characteristic age, magnetic field strength, spin-down rate, as well as to detect any unexpected behaviour of the pulsar which might result from emission instabilities. Pulsars on the observing list here have been confirmed in the previous and current 2021APRS semesters, the follow-up timing in OCTS2021 will produce completely new and exciting results. In addition, this timing project will allow us to measure the true Galactic plane pulsar population and the boundaries of pulsar parameter space in the galactic plane.

本申请为HTRU巡天（P630）银道面低纬度区域再处理项目中新发现脉冲星的计时观测计划申请观测时长。目前我们已基于GPU加速的相干加速搜索、模板库及快速折叠算法流程完成该巡天项目90%的工作，现已发现92颗此前未被记录的脉冲星，以及8颗待确认的“A类”脉冲星。通常而言，新发现脉冲星仅在完成确认并开展后续计时观测后，才能产出具有科学价值的研究成果。为完整表征所有新发现脉冲星的特性，至少需要开展为期一年的初始计时观测——这是获取脉冲星特征年龄、磁场强度、自转减慢速率等参数，以及探测可能由射电发射不稳定性引发的脉冲星异常行为的必要前提。本次观测列表中的脉冲星已在2021APRS过往及当期学期中完成确认，在OCTS2021中开展的后续计时观测将产出全新且极具科学价值的成果。此外，本计时项目将帮助我们精准测算银道面内脉冲星的真实种群分布，以及银道面范围内脉冲星参数空间的边界范围。