Parkes observations for project P885 semester 2024OCTS_15

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.

我们提出了一项更为精简的观测计划，以持续监测已知6颗射电磁星（radio magnetar）中的4颗，追踪其自转特性、流量密度与偏振性质。其中，1E 1547.0-5408针对2022年其辐射特性出现的‘闪变’所产生的自转响应仍处于演化阶段，因此需要每约10天开展一次高频观测。针对Swift J1818.0-1607的观测节奏与申请时长均已缩减，这与其活跃度与流量密度的下降相匹配。针对XTE J1810-197，以及2022年停止辐射的PSR J1622-4950的观测，仍维持在缩减后的级别。本次观测申请的总时长为13.5小时。