Parkes observations for project P1054 semester 2023OCTS_05

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.

本提案申请观测时长，以持续开展针对MeerKAT望远镜（MeerKAT）所发现脉冲星的计时随访观测项目。本次已发现的脉冲星样本涵盖：费米未证认点源（Fermi unidentified point sources）靶向观测中发现的25颗、与超新星遗迹（Supernova Remnant）成协的1颗、麦哲伦云（Magellanic Clouds）中的13颗、球状星团（Globular Clusters）中的72颗，以及银道面巡天中发现的78颗。本次新发现的脉冲星中，绝大多数为再循环脉冲星（包括至少1个双中子星系统与多颗蜘蛛型双星系统脉冲星），亦或是年轻脉冲星。计时观测对于充分发挥每一次脉冲星发现的科研潜力至关重要，其可实现对脉冲星自转、天体测量与轨道参数的精确测量，进而为我们深入理解极端环境下的物理规律，乃至整体中子星族群的特性提供强有力的研究工具。帕克斯望远镜（Parkes telescope）配备的UWL接收机（UWL receiver）是一台高灵敏度、多用途的观测设备，可助力我们对这批TRAPUM巡天亮端新发现的脉冲星开展成功的计时观测。