Parkes observations for project P1054 semester 2023OCTS_08

With this proposal we ask time to continue our timing follow-up campaign of pulsars discovered with the MeerKAT telescope. Twentyfive sources have been discovered in targeted observations of Fermi unidentified point sources, one in association with a Supernova Remnant, 13 in the Magellanic Clouds, 72 in Globular Clusters and 78 in a survey of the Galactic plane. A large fraction of the new discoveries are recycled pulsars (including at least one double neutron star system and several 'spider' binaries), or young pulsars. Timing observations have an essential role in exploiting the full potential of any pulsar discovery, allowing the precise measurement of rotational, astrometric and orbital parameters which, in turn, give us powerful tools to improve our understanding of the physics in extreme environments as well as of the population of neutron stars as a whole. The UWL receiver of the Parkes telescope is a sensitive, versatile instrument that is allowing us to successfully time these new sources, in the bright-end of TRAPUM discoveries.

本申请旨在延续我们对 MeerKAT 望远镜（MeerKAT）发现的脉冲星开展的计时随访观测项目。我们通过该望远镜的观测共发现多颗脉冲星源，其中25颗来自费米未证认点源（Fermi unidentified point sources）的靶向观测，1颗与超新星遗迹（Supernova Remnant）成协，13颗位于大麦哲伦云（Magellanic Clouds），72颗位于球状星团（Globular Clusters），另有78颗来自银道面巡天项目。本次新发现的脉冲星中，绝大多数为再循环脉冲星（recycled pulsars），包含至少1个双中子星系统（double neutron star system）与多颗“蜘蛛型”双星（spider binaries），亦包含年轻脉冲星。计时观测对于充分挖掘每一颗脉冲星发现的科研潜力具有核心作用：通过该类观测可精准测量脉冲星的自转、天体测量与轨道参数，进而为我们研究极端环境下的物理规律以及整体中子星族群的分布特性提供强有力的研究工具。帕克斯望远镜（Parkes telescope）搭载的UWL接收机（UWL receiver）是一台高灵敏度、多用途的观测设备，可助力我们成功完成这批新发现脉冲星的计时观测工作，这批源均属于TRAPUM巡天（TRAPUM）项目中较亮的发现样本。