The major programme for observing young, non-recycled pulsars with the Parkes telescope has transitioned from a narrow-band system to an ultra-wide-band system capable of observing between 704 and 4032 MHz. We report here on the initial 2 yr of observations with this receiver. Results include dispersion measure (DM) and Faraday rotation measure (RM) variability with time, determined with higher precision than hitherto, flux density measurements and the discovery of several nulling and mode changing pulsars. PSR J1703−4851 is shown to be one of a small subclass of pulsars that has a weak and a strong mode which alternate rapidly in time. PSR J1114−6100 has the fourth highest |RM| of any known pulsar despite its location far from the Galactic Centre. PSR J1825−1446 shows variations in both DM and RM likely due to its motion behind a foreground supernova remnant.

中文翻译：

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用帕克斯射电望远镜上的超宽带接收器进行两年的脉冲星观测

使用帕克斯望远镜观测年轻、非回收脉冲星的主要计划已经从窄带系统转变为能够在 704 和 4032 MHz 之间观测的超宽带系统。我们在此报告该接收器最初 2 年的观察结果。结果包括色散测量 (DM) 和法拉第旋转测量 (RM) 随时间的变化，以比迄今为止更高的精度确定，通量密度测量以及几个零点和模式改变脉冲星的发现。PSR J1703-4851 被证明是脉冲星的一个小子类，具有随时间快速交替的弱模式和强模式。PSR J1114−6100 的 |RM| 位居第四 任何已知的脉冲星，尽管它的位置远离银河中心。