Parkes observations for project P1054 semester 2024OCTS_12

With this proposal we ask time to continue our timing follow-up campaign of pulsars discovered with the MeerKAT telescope. Thirtysix sources have been discovered in targeted observations of Fermi unidentified point sources, two in association with a Supernova Remnant, 14 in the Magellanic Clouds, 94 in Globular Clusters and 81 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MeerKAT望远镜所发现脉冲星（pulsars）的计时随访计划。本次研究中共发现以下类别的脉冲星源：针对费米未证认点源（Fermi unidentified point sources）的靶向观测中发现36个，与超新星遗迹（Supernova Remnant）成协的有2个，麦哲伦云（Magellanic Clouds）内发现14个，球状星团（Globular Clusters）内发现94个，银道面（Galactic plane）巡天中发现81个。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）与多颗“蜘蛛型”双星（spider binaries），或是年轻脉冲星。计时观测（Timing observations）对于充分挖掘每一颗新发现脉冲星的科研潜力至关重要：其可实现自转、天体测量与轨道参数的精确测量，而这些参数反过来为我们深入理解极端环境下的物理规律，乃至整体中子星的种群分布提供了强有力的研究工具。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，能够帮助我们对TRAPUM巡天中发现的亮端新源开展成功的计时观测。