Parkes observations for project P1050 semester 2021OCTS_10

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. \r\nInteresting 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.

本申请旨在为开展HTRU巡天（P630）银道面低纬度区域重处理所发现的新脉冲星的计时观测项目申请观测时长。目前，我们已借助基于图形处理器（GPU）的相干加速搜索（coherent acceleration search）、模板库（template bank）与快速折叠算法（fast folding algorithm）处理流水线，完成了该巡天项目90%的工作，现已发现92颗此前未被发现的脉冲星，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。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的必要前提。本次观测列表中的脉冲星已在2021APRS的前、当前两个学期完成确认，在OCTS2021项目中开展的后续计时观测将产出全新且极具价值的科研成果。此外，本计时项目将帮助我们精准测定银道面内脉冲星的真实种群分布，以及银道面内脉冲星参数空间的边界范围。