Parkes observations for project P1054 semester 2023OCTS_16

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.

本观测提案申请分配观测时长，以延续我们对米尔卡特（MeerKAT）望远镜发现的脉冲星（pulsar）开展的计时随访观测项目。我们通过靶向观测费米未证认点源（Fermi unidentified point source），共发现25颗脉冲星；另有1颗与超新星遗迹（Supernova Remnant）成协，13颗位于麦哲伦云（Magellanic Clouds）中，72颗发现于球状星团（Globular Cluster）内，还有78颗来自银道面（Galactic plane）巡天项目。本次新发现的脉冲星中，绝大多数为再循环脉冲星（recycled pulsar），其中包含至少1个双中子星系统（double neutron star system）以及多颗“蜘蛛”双星（spider binaries），其余则为年轻脉冲星。

计时观测对于充分挖掘每一颗脉冲星发现的全部科学潜力具有核心作用：它可精确测量脉冲星的自转、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的特性提供强有力的研究工具。帕克斯望远镜（Parkes telescope）搭载的UWL接收机（UWL receiver）是一台高灵敏度、多用途的观测设备，能够帮助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巡天发现的亮源范畴。