Parkes observations for project P1050 semester 2021OCTS_32

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.

本申请旨在为编号为P630的HTR巡天（HTRU survey）低银纬银道面区域再处理项目中发现的新脉冲星的计时观测计划申请观测时长。我们已基于图形处理器（Graphics Processing Unit, 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项目90%的数据处理工作，目前已发现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，新发现的脉冲星仅在完成身份确认并开展后续计时观测后，才能产出具备科学价值的研究成果。对任意新发现的脉冲星而言，至少需要为期一年的初始计时观测，才能完成其完整特性表征——这是获取脉冲星特征年龄、磁场强度、自转减速率等关键参数，以及探测可能由射电辐射不稳定性引发的脉冲星异常行为的必要前提。本观测列表中的脉冲星已在2021年APRS学期的前期及当期观测中完成身份确认，本次OCTS2021项目中的后续计时观测将产出全新且极具科学意义的成果。此外，本计时观测项目还将帮助我们精准测定银道面内真实的脉冲星种群分布，以及银道面区域内脉冲星参数空间的边界范围。