Parkes observations for project P860 semester 2019APRS_03

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.

本申请为获取观测时长，以开展HTRU巡天（HTRU Survey，P630）银道面低纬度区域中新发现脉冲星的首次后续观测。目前，我们已利用周期性搜索算法及部分相干分段加速搜索流水线完成了全巡天数据的首轮处理，并新发现106颗此前未被记录的脉冲星。通常而言，新发现脉冲星仅在经过证认并开展后续计时观测项目后，方能产出有价值的科学成果。对所有新发现脉冲星开展为期一年的初始计时观测，是完整刻画其物理特性的最低时长要求，这一步对于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。本后续计时观测项目，对于跟进研究HTRU银道面巡天中发现的各类具有科学价值的脉冲星系统而言必不可少。由于本次观测列表中的所有脉冲星均为首次开展后续观测，其相关研究将产出全新且极具突破性的成果。此外，本计时观测项目将支持对银道面脉冲星族群开展大规模普查，从而探索脉冲星参数空间的真实边界。