Parkes observations for project P885 semester 2021OCTS_12

We request a reduced monitoring cadence for the magnetars 1E 1547.0-5408 and Swift J1818.0-1607 to once every 10 days, to track their rotation, flux density, and polarisation. Swift J1818.0-1607 remains very dynamic, and the unique UWL capabilities promise new opportunities to probe still mysterious radio emission mechanisms in magnetars. Our timing results indicate that 1E 1547.0-5408 is currently a more stable rotator, supporting the diminished cadence. We will observe XTE J1810-197 and PSR J1622-4950 less frequently, to complement monitoring elsewhere. The overall request is 18 hours.

我们申请将磁星（magnetar）1E 1547.0-5408与Swift J1818.0-1607的监测频次降至每10天一次，以追踪它们的自转特性、流量密度与偏振状态。Swift J1818.0-1607目前仍处于高度活跃状态，其独有的UWL观测能力为探究磁星中至今仍充满神秘色彩的射电辐射机制提供了全新机遇。我们的计时分析结果显示，1E 1547.0-5408当前是一颗更为稳定的自转天体，这一结论也支持降低其监测频次的申请。我们将减少对XTE J1810-197与PSR J1622-4950的观测频次，以补充其他区域的监测工作。本次整体观测申请的总时长为18小时。