Parkes observations for project P1054 semester 2023OCTS_01

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，以延续对使用MeerKAT望远镜发现的脉冲星开展的计时后续观测计划。本次发现的脉冲星来源如下：针对费米未证认点源（Fermi unidentified point sources）的靶向观测中发现25颗，1颗与超新星遗迹（Supernova Remnant）成协，13颗位于麦哲伦云（Magellanic Clouds），72颗位于球状星团（Globular Clusters），另有78颗来自银道面巡天（Galactic plane survey）。本次新发现的脉冲星中，多数为再循环脉冲星（recycled pulsars，至少包含1个双中子星系统与多颗‘蜘蛛’型双星系统脉冲星），或是年轻脉冲星。计时观测对于充分挖掘每一颗脉冲星发现的科学潜力至关重要，可实现对其自转、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整体中子星族群特性提供强有力的研究工具。帕克斯望远镜（Parkes telescope）的UWL接收机（UWL receiver）是一台高灵敏度、多用途的仪器，可帮助我们成功对TRAPUM巡天亮端发现的这批新脉冲星开展计时观测。