Parkes observations for project P1347 semester 2024OCTS_02

A MeerKAT imaging survey of the Galactic Center and Bulge region yielded the detections of 39 known pulsars and 30 pulsar candidates. The candidates were identified primarily as steep-spectrum, circularly- and/or linearly-polarized sources, and to a lesser degree by the level of radio variability observed. We have chosen nine pulsar candidates to target in this proposal. These sources are the most pulsar-like of the MeerKAT point sources (based on their polarization, spectral index, and variability) that also have large enough flux densities to make a firm detection of pulsations if present. We propose to observe these nine candidates twice, for 1.5 hr each, in the 2024OCT semester.

本研究依托米尔卡特大射电望远镜（MeerKAT）开展的银河系中心与核球区域成像巡天，共探测到39颗已知脉冲星及30个脉冲星候选体。上述候选体主要通过陡谱、圆偏振和/或线偏振的源属性完成识别，同时以观测到的射电变异性强度作为次要筛选条件。本提案选定其中9个脉冲星候选体作为后续观测目标：这批源是MeerKAT点源中最具脉冲星特征的样本（基于其偏振特性、频谱指数与射电变异性），且具备足够高的流量密度，若该候选体确为脉冲星，则可确凿探测到其脉冲信号。我们计划在2024年10月观测周期内，对这9个候选体开展两次观测，单次观测时长为1.5小时。