Parkes observations for project P1054 semester 2025OCTS_10

With this proposal we ask time to continue our timing follow-up campaign of pulsars discovered with the MeerKAT telescope. Fourtyfour sources have been discovered in targeted observations of Fermi unidentified point sources, two towards Supernova Remnants, 26 in the Magellanic Clouds, 106 in Globular Clusters and 87 in a survey of the Galactic plane. A large fraction of the new discoveries are recycled pulsars (including a few relativistic systems, a pulsar with a planetary companion and several 'spider' binaries), or young pulsars. Timing observations have an essential role in exploiting the full potential of any pulsar discovery, allowing for 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.本提案申请观测时长，以延续我们对使用MeerKAT望远镜发现的脉冲星开展计时后续观测的项目。此前通过针对费米未证认点源的靶向观测共发现44个脉冲星源，其中2个朝向超新星遗迹，26个位于麦哲伦云，106个位于球状星团，另有87个来自银道面巡天。本次新发现的脉冲星中，很大一部分为再循环脉冲星（包括数例相对论性系统、一颗带有行星伴星的脉冲星以及多组“蜘蛛”双星系统），同时也包含年轻脉冲星。计时观测对于充分挖掘每一次脉冲星发现的科学潜力具有核心意义，可实现自转、天体测量与轨道参数的精准测量，进而为我们深入理解极端环境下的物理规律以及中子星的整体种群分布提供强有力的研究工具。帕克斯望远镜的UWL接收机（UWL receiver）是一款高灵敏度、多用途的观测仪器，能够助力我们成功对TRAPUM巡天中亮度较高的这批新发现源开展计时观测。