Parkes observations for project P885 semester 2023OCTS_09

We request a continued modest monitoring cadence of once every 10 days for two radio magnetars, to track their rotation, flux density, and polarisation. 1E 1547.0-5408 has recently suffered a 'hiccup' in radiative properties as well as in its rotation, and the mid-term response to this event remains unclear. Swift J1818.0-1607 remains quite dynamic, and the unique UWL capabilities provide new opportunities to probe still mysterious radio emission mechanisms in magnetars. We will observe XTE J1810-197 and PSR J1622-4950, which ceased emission a year ago, less frequently. The overall request is 18 hours.

我们请求对两颗射电磁星（radio magnetars）保持每10天一次的适度持续监测节奏，以追踪其自转、通量密度（flux density）及偏振（polarisation）特性。1E 1547.0-5408近期在辐射特性（radiative properties）及自转方面出现了一次“扰动”，而该事件的中期响应仍不明确。Swift J1818.0-1607的状态仍十分活跃，独特的UWL能力为探索磁星中仍存神秘的射电辐射机制（radio emission mechanisms）提供了新机遇。对于一年前已停止辐射的XTE J1810-197和PSR J1622-4950，我们将降低观测频率。本次请求的总观测时长为18小时。