Parkes observations for project P1050 semester 2021OCTS_02

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（High Time Resolution Universe Survey）P630项目银道面低纬度区域再处理中发现的新脉冲星，申请开展计时观测计划所需的观测时长。我们已通过基于图形处理器（GPU）的相干加速搜索、模板库及快速折叠算法处理流水线完成该巡天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级”脉冲星。通常而言，新发现的脉冲星仅在完成确认并开展后续计时观测计划后，方能产出具有科学价值的研究成果。对任意新发现脉冲星开展为期一年的初始计时观测，是完成其全面表征的最低时长要求——这对推导脉冲星特征年龄、磁场强度、自转减速率等参数，以及探测可能由辐射不稳定性引发的脉冲星异常行为均至关重要。本观测列表收录的脉冲星已在2021APRS观测周期的前序与当期项目中完成确认，在OCTS2021项目中开展的后续计时观测将产出全新且极具突破性的科研成果。此外，本计时观测项目将助力我们精准测定银道面内脉冲星的真实种群数量，以及脉冲星参数空间在银道面中的分布边界。