Parkes observations for project P885 semester 2022APRS_19

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.

我们请求将磁星1E 1547.0-5408和Swift J1818.0-1607的监测频率继续降低至每10天一次，以跟踪其自转、通量密度及偏振特性。Swift J1818.0-1607仍具有高度动态性，而UWL的独特功能为探索磁星中仍存神秘的射电辐射机制提供了新机遇。我们的计时结果表明，1E 1547.0-5408目前是一个更稳定的自转天体，这为降低监测频率提供了依据。我们将降低对XTE J1810-197和PSR J1622-4950的观测频率，以补充其他地方的监测工作。本次请求的总观测时长为18小时。