Parkes observations for project P885 semester 2024APRS_08

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 magnetar）维持每10天一次的适度监测周期，以追踪其自转、流量密度与偏振特性。1E 1547.0-5408 近期在辐射特性与自转方面均出现了‘扰动’，针对该事件的中期响应机制目前仍不明确。Swift J1818.0-1607 目前仍处于高度活跃状态，其独特的UWL观测能力为探究磁星中迄今仍未被完全阐明的射电辐射机制提供了全新契机。我们将以更低的监测频次对已停止辐射一年的XTE J1810-197与PSR J1622-4950进行观测。本次观测申请总时长为18小时。