Parkes observations for project P860 semester 2018APRS_BPSR_01
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https://researchdata.edu.au/parkes-observations-project-semester-2018aprsbpsr01/1330251
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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 already discovered 105 pulsars from 94% of processed data. We expect that processing should be complete within the 2018APRS semester. Extrapolation and population synthesis shows that the Galactic plane survey should result in a further 5-10 discoveries.\r\n\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 ?eld strength, spin-down rate, as well as to detect any unexpected behaviour of the pulsar which might result from emission instabilities.\r\n\r\nThis follow-up timing project is necessary for identifying 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. Given the large number of discoveries expected and the long integration length required, this dedicated follow-up timing campaign is vital for achieving our science goals.
本申请旨在申请观测时长,用于开展HTRU巡天(P630)低银纬银道面区段已发现脉冲星的首批后续观测工作。目前我们已在94%的已处理数据中发现105颗脉冲星,预计剩余数据处理工作将于2018年APRS学期内完成。通过外推法与星族合成分析可知,本次银道面巡天预计还将新增5至10颗脉冲星发现。
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,才能产出有价值的科学成果。开展为期一年的初始计时观测是完全表征所有新发现脉冲星的最短时长要求,这对获取脉冲星特征年龄、磁场强度、自转下降速率等参数,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。
本后续计时观测项目对于甄别HTRU银道面巡天中发现的各类极具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,其研究将产出全新且令人振奋的科学成果。此外,本计时观测项目将实现对银道面脉冲星星族的大规模普查,深入探索脉冲星参数空间的真实边界。鉴于预计将有大量脉冲星被发现,且观测积分时长需求较高,本专属后续计时观测项目对于达成我们的科学目标至关重要。
提供机构:
Commonwealth Scientific and Industrial Research Organisation



