Parkes observations for project P885 semester 2024OCTS_02

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.

本研究提出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 magnetars）中的4颗，并追踪其自转、通量密度与偏振特性。2022年其辐射特性出现异动后，1E 1547.0-5408的自转响应仍处于演化过程中，需每约10天开展高频观测。针对Swift J1818.0-1607的观测频次与观测申请时长均已缩减，这与其活动强度及通量的下降态势相匹配。对于2022年已停止辐射的XTE J1810-197与PSR J1622-4950的观测，仍维持缩减后的观测强度。本次观测申请总时长为13.5小时。