Parkes observations for project P860 semester 2019APRS_07

This is a request for observing time for the initial follow-up of pulsar discoveries from the low-latitude Galactic plane section of the HTRU survey (P630). We have now completed a first pass processing of the entire survey with our periodicity search algorithm as well as the partially-coherent segmented acceleration search pipeline, and have discovered 106 previously unknown pulsars. 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 ?eld strength, spin-down rate, as well as to detect any unexpected behaviour of the pulsar which might result from emission instabilities. This follow-up timing project is necessary for following up on any interesting pulsar systems discovered from the HTRU Galactic plane survey. Since all of the pulsars on the observing list here are being followed-up for the first time, they will produce completely new and exciting results. In addition, this timing project will enable a large-scale examination of the Galactic plane pulsar population, exploring the true boundaries of pulsar parameter space.

本文件为高时间分辨率宇宙巡天（High Time Resolution Universe Survey，简称HTRU）银道面低纬度区域的脉冲星发现项目（编号P630）申请首次跟进观测所需的观测时长。目前我们已利用周期搜索算法与部分相干分段加速搜索流程完成全巡天的首轮数据处理，共发现106颗此前未被记录的脉冲星。通常而言，新发现的脉冲星仅在完成验证并开展后续计时观测项目后，才能产出具有科学价值的研究成果。为完整表征任意一颗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至关重要。本次跟进计时项目可对HTRU银道面巡天中发现的所有具备研究价值的脉冲星系统完成后续观测，因此十分必要。由于本次观测列表中的所有脉冲星均为首次开展跟进观测，其相关研究将产出全新且令人振奋的科研成果。此外，本计时项目还可实现对银道面脉冲星族群的大规模普查，从而探索脉冲星参数空间的真实边界。