Parkes observations for project P885 semester 2024OCTS_03

We propose a reduced even more modest program to continue monitoring 4 of the 6 known radio magnetars, tracking their rotational, flux density, and polarisation properties. The rotational response of 1E 1547.0-5408 to its 2022 'hiccup' in radiative properties is still developing, requiring frequent observations every ~10 days. The cadence and request for Swift J1818.0-1607 is reduced, commensurate with its decreased activity/flux. Observations of XTE J1810-197, and PSR J1622-4950 which ceased emission in 2022, remain at reduced levels. The overall request is 13.5 hours.

我们提出了一项规模进一步缩减的适度观测计划，以持续监测已知6颗射电磁星（radio magnetar）中的4颗，并追踪它们的自转特性、流量密度与偏振特性。1E 1547.0-5408在2022年出现辐射特性异动后，其自转响应仍处于演化阶段，需要每约10天开展一次高频观测。针对斯威夫特（Swift）J1818.0-1607的观测频次与申请时长均已缩减，这与其活动水平与辐射流量的下降情况相匹配。对于X射线时变探测器（X-ray Timing Explorer, XTE）J1810-197，以及2022年停止辐射的脉冲星（Pulsar, PSR）J1622-4950，其观测时长仍维持在缩减后的水平。本次观测申请的总时长为13.5小时。