Parkes observations for project P885 semester 2022APRS_04

We request a continued reduced monitoring cadence for the magnetars 1E 1547.0-5408 and Swift J1818.0-1607 at 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.

我们申请对磁星（magnetars）1E 1547.0-5408与Swift J1818.0-1607维持每10天一次的缩减后监测频次，以追踪其自转、通量密度与偏振特征。Swift J1818.0-1607目前仍表现出高度活跃性，其独特的UWL观测能力为探究磁星中迄今尚未明确的射电辐射机制带来了新的契机。我们的计时观测结果显示，1E 1547.0-5408当前自转稳定性更强，这为缩减其监测频次的申请提供了依据。我们将以更低频次开展XTE J1818-197与PSR J1622-4950的观测工作，以补充其他区域的监测任务。本次观测申请总时长为18小时。