Parkes observations for project P1054 semester 2023APRS_10

With this proposal we ask time to continue our timing follow-up campaign of pulsars discovered with the MeerKAT telescope. Twenty sources have been discovered in targeted observations of Fermi unidentified point sources, one in association with a Supernova Remnant, 13 in the Magellanic Clouds, 71 in Globular Clusters and 74 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.

本申请旨在延续基于MeerKAT望远镜发现的脉冲星的计时后续观测项目。本次新发现的脉冲星源涵盖多类样本：在费米未证认点源（Fermi unidentified point sources）靶向观测中发现20颗，其中1颗与超新星遗迹（Supernova Remnant）成协，13颗位于麦哲伦云（Magellanic Clouds）内，71颗位于球状星团（Globular Clusters）中，另有74颗来自银道面巡天（Galactic plane survey）。这批新发现源中，绝大多数为再循环脉冲星（recycled pulsars，包括至少1个双中子星系统（double neutron star system）与多颗"蜘蛛"型双星（spider binaries））或年轻脉冲星。计时观测对于充分发挥每一颗脉冲星发现的科研潜力具有核心作用：通过该类观测可精确测定其自转、天体测量与轨道参数，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）搭载的UWL接收机（UWL receiver）是一台高灵敏度、多用途的观测设备，能够助力我们顺利对这批来自TRAPUM巡天亮源端的新发现脉冲星开展计时观测。