Parkes observations for project P1054 semester 2023OCTS_13

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，以推进针对MeerKAT望远镜发现的脉冲星的计时后续观测项目。本次共发现25个源自费米未证认点源（Fermi unidentified point sources）靶向观测的脉冲星，另有1个与超新星遗迹（Supernova Remnant）成协、13个位于麦哲伦星云（Magellanic Clouds）、72个处于球状星团（Globular Clusters）中，以及78个来自银道面（Galactic plane）巡天。绝大多数新发现的脉冲星为再循环脉冲星（recycled pulsars，包含至少1个双中子星系统（double neutron star system）与多组蜘蛛型双星（spider binaries）），亦或是年轻脉冲星。计时观测对于充分挖掘每一次脉冲星发现的科研潜力具有核心价值，可实现自转、天体测量与轨道参数的精准测量，进而为我们深化对极端环境物理规律以及整体中子星族群的认知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，能够助力我们对TRAPUM巡天发现的亮端脉冲星源开展成功的计时观测。