Parkes observations for project P1054 semester 2023APRS_03

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.

本提案申请观测时长，以延续针对MeerKAT望远镜所发现脉冲星的计时后续观测计划。本次研究中，我们通过费米未证认点源（Fermi unidentified point sources）靶向观测发现20颗脉冲星，另有1颗与超新星遗迹（Supernova Remnant）成协，13颗发现于麦哲伦云（Magellanic Clouds），71颗发现于球状星团（Globular Clusters），74颗发现于银道面巡天（Galactic plane survey）。本次新发现的脉冲星中，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）与若干蜘蛛型双星），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研潜力至关重要，其可实现自转参数、天体测量参数与轨道参数的精确测定，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，可助力我们成功对这批来自TRAPUM巡天（TRAPUM）亮源子集的新发现脉冲星开展计时观测。