Parkes observations for project P1054 semester 2023OCTS_09

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，以延续我们对MeerKAT望远镜所发现脉冲星的计时随访计划。本次研究通过对费米（Fermi）未证认点源开展靶向观测，共发现25个脉冲星源；其中1个与超新星遗迹（Supernova Remnant）成协，13个位于麦哲伦云（Magellanic Clouds）中，72个位于球状星团（Globular Clusters）内，另有78个发现于银道面巡天（Galactic plane survey）项目中。本次新发现的脉冲星中，很大一部分为再循环脉冲星（recycled pulsars），包括至少1个双中子星系统（double neutron star system）与多组蜘蛛双星系统（spider binaries），亦或是年轻脉冲星。计时观测对于充分挖掘每一颗新发现脉冲星的科研潜力具有核心作用：通过该类观测可精确测定脉冲星的自转、天体测量与轨道参数，进而为我们研究极端环境下的物理规律以及整体中子星族群提供强有力的研究工具。帕克斯（Parkes）望远镜搭载的UWL接收机（UWL receiver）是一款高灵敏度、多用途的观测设备，可帮助我们顺利完成TRAPUM巡天（TRAPUM）亮源端这批新发现脉冲星的计时观测工作。