Parkes observations for project P1102 semester 2026APRS_08

We request a triggered, high-cadence observation campaign to fully capture abrupt radiative and timing changes in the pulsed radio emission of a sample of four actively monitored magnetars. Magnetars are excellent laboratories for exploring the response of a neutron star magnetosphere to sudden, often times cataclysmic, changes in magnetic structure. Catching a radio-loud magnetar during the early stages of a sudden change in radiative behaviour, whether switching on after an outburst or displaying signs of a rapidly varying magnetic topology, is key to understanding both the short- and long-term evolution of their ultra-strong magnetic fields. The excellent sensitivity of the Ultra-Wideband Low (UWL) receiver system provides us with the means to capture high-quality, phase resolved polarisation spectra of these objects.

我们申请开展一项触发式高频次观测计划，以完整捕捉4颗处于持续主动监测中的磁星(Magnetars)的脉冲射电辐射中出现的突发性辐射与计时变化。磁星是探究中子星磁层对磁结构突发性（往往具有灾变性）变化的响应的绝佳天然实验室。在辐射行为突发变化的早期阶段捕捉射电亮磁星——无论是在爆发后重启射电辐射，还是展现出磁拓扑快速变化的迹象——是理解其超强磁场短期与长期演化的关键。超低频宽带（Ultra-Wideband Low, UWL）接收机系统的优异灵敏度，为我们获取这些天体的高质量相位分辨偏振光谱提供了有力支撑。