Parkes observations for project P1054 semester 2025OCTS_02

With this proposal we ask time to continue our timing follow-up campaign of pulsars discovered with the MeerKAT telescope. Fourtyfour sources have been discovered in targeted observations of Fermi unidentified point sources, two towards Supernova Remnants, 26 in the Magellanic Clouds, 106 in Globular Clusters and 87 in a survey of the Galactic plane. A large fraction of the new discoveries are recycled pulsars (including a few relativistic systems, a pulsar with a planetary companion and several 'spider' binaries), or young pulsars. Timing observations have an essential role in exploiting the full potential of any pulsar discovery, allowing for 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，以延续针对米尔卡特（MeerKAT）望远镜发现的脉冲星（pulsar）的计时随访项目。此前通过费米（Fermi）未证认点源靶向观测共发现44颗脉冲星，其中2颗关联超新星遗迹（Supernova Remnants）、26颗位于麦哲伦云（Magellanic Clouds）、106颗位于球状星团（Globular Clusters），另有87颗来自银道面巡天项目。本次新发现的脉冲星中，多数为再循环脉冲星（recycled pulsar），包括少量相对论性系统、1颗拥有行星伴星的脉冲星以及多颗“蜘蛛”双星系统，亦有部分为年轻脉冲星。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，可实现对其自转、天体测量与轨道参数的精准测定，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（neutron star）族群特性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）是一台高灵敏度、多用途的观测设备，能够助力我们对这批TRAPUM巡天项目中亮端新发现的脉冲星源开展成功计时观测。