Parkes observations for project P1050 semester 2020APRS_36
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This is a request for observing time for the initial follow-up of pulsar discoveries from the re-processing of the low-latitude Galactic plane section of the HTRU survey (P630). We have now completed a first pass re-processing of the 60 % of the survey with GPU based coherent acceleration search and template bank search pipelines, and have discovered potential 54 previously unknown pulsars.\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. This follow-up and 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.
本申请为针对HTRU巡天(HTRU Survey,项目编号P630)低银纬银道面片区重新处理所发现的脉冲星开展首次后续观测的观测时长申请。目前我们已基于GPU加速的相干加速搜索与模板库搜索流程,完成了该巡天60%数据的首轮重新处理,并初步发现54颗此前未被记录的潜在脉冲星。通常而言,新发现的脉冲星仅在完成证认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。对任意新发现脉冲星进行完整特性表征的最短必要时长为一年的初始计时观测,这一过程对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均至关重要。本后续观测与计时项目,可对HTRU银道面巡天中发现的所有具备科学价值的脉冲星系统开展跟进研究。由于本次观测清单中的所有脉冲星均为首次开展后续观测,其研究将产出全新且极具突破性的科学成果。此外,本计时项目可实现对银道面脉冲星族群的大规模普查,进而探索脉冲星参数空间的真实边界。



