Parkes observations for project P1054 semester 2023OCTS_06

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，以延续对MeerKAT望远镜发现的脉冲星开展的计时后续观测项目。本次新发现的脉冲星共计：在费米（Fermi）未证认点源的靶向观测中发现25颗，1颗与超新星遗迹（Supernova Remnant）成协，13颗位于麦哲伦云（Magellanic Clouds），72颗位于球状星团（Globular Clusters），另有78颗源自银道面巡天（Galactic plane survey）。本次新发现的脉冲星中，多数为再循环脉冲星（recycled pulsars，包含至少1个双中子星系统（double neutron star system）与多颗"蜘蛛"型双星系统（spider binaries）脉冲星），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学潜力至关重要：通过计时观测可精准测量其自转、天体测量（astrometric）与轨道参数，进而为我们深入理解极端环境下的物理规律，乃至整体中子星族群的特性提供强有力的研究工具。帕克斯（Parkes）望远镜的UWL接收机是一款高灵敏度、多用途的观测设备，能够助力我们顺利对这批TRAPUM巡天亮端发现的新脉冲星源开展计时观测。