Parkes observations for project P1054 semester 2024APRS_03

With this proposal we ask time to continue our timing follow-up campaign of pulsars discovered with the MeerKAT telescope. Thirty sources have been discovered in targeted observations of Fermi unidentified point sources, two in association with a Supernova Remnant, 13 in the Magellanic Clouds, 87 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，以继续开展针对MeerKAT望远镜（MeerKAT）发现的脉冲星的计时后续观测项目。本次新发现的脉冲星共计210颗：其中，通过对费米未证认点源（Fermi unidentified point sources）的靶向观测发现30颗，与超新星遗迹（Supernova Remnant）成协发现2颗，在麦哲伦星云（Magellanic Clouds）中发现13颗，在球状星团（Globular Clusters）中发现87颗，在银道面巡天中发现78颗。本次新发现的脉冲星中，很大一部分为再循环脉冲星（至少包含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。计时观测对于充分发挥每一次脉冲星发现的科研潜力至关重要：其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。帕克斯望远镜（Parkes telescope）的UWL接收机（UWL receiver）是一台高灵敏、多用途的观测设备，能够助力我们成功对这批新发现的脉冲星开展计时观测——这批源均属于TRAPUM巡天（TRAPUM）中亮度较高的发现样本。