Parkes observations for project P1054 semester 2023APRS_17

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，以继续对MeerKAT望远镜（MeerKAT telescope）发现的脉冲星开展计时随访项目。本次研究通过对费米（Fermi）未证认点源的靶向观测，共发现20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），71个位于球状星团（Globular Clusters），另有74个源自银道面巡天。本次新发现的脉冲星中，很大一部分为再循环脉冲星（包括至少1个双中子星系统与多颗‘蜘蛛’双星系统脉冲星），亦有部分为年轻脉冲星。计时观测对于充分挖掘每一次脉冲星发现的科研潜力至关重要，其可实现对脉冲星自转、天体测量与轨道参数的精确测量，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（Parkes）望远镜的UWL接收机是一台高灵敏度、多用途的仪器，助力我们成功对这批新发现的脉冲星源开展计时观测——这些源均属于TRAPUM巡天项目中亮度较高的发现样本。