Long-term project observations for project P885 semester 2025APRS_06

We propose a modest program to continue monitoring 4 of the 6 known radio magnetars in order to achieve three primary science goals. The first is to characterise magnetar outbursts over long timescales, for which tracking their rotational, flux density, and polarisation properties provide a clear view of the impulse response of their magnetic fields. Second, understanding the links between magnetars the mysterious fast radio burst phenomenon through the discovery of rare emission and propagation effects, shared spectro-temporal phenomenology, and connections to high-energy (X-ray/gamma-ray) phenomena. Lastly, our continued monitoring has enormous benefit to the wider magnetar community, providing rapid alerts to changes in activity, adding context to unusual behaviour detected by high-enery observations, and a host of supplementary science through the teams extensive collaborative networks. The project and its precursors have been running since 2007 and have contributed to 21 publications since then. We are seeking to convert the project to long-term status, thereby also carrying these investigations into the SKA era.

我们提出一项适度规模的观测项目，将对已知6颗射电磁星（radio magnetar）中的4颗开展持续监测，以达成三项核心科学目标。其一，对长期时间尺度下的磁星爆发进行表征：通过追踪其自转特性、流量密度与偏振特性，可清晰揭示其磁场的脉冲响应机制。其二，通过发现罕见的辐射与传播效应、共有的谱时域现象特征，以及其与高能（X射线/伽马射线）现象的关联，阐明磁星与神秘的快速射电暴（Fast Radio Burst, FRB）现象之间的联系。其三，本项目的持续监测可惠及更广泛的磁星研究共同体：可为磁星活动状态的变化提供快速预警，为高能观测所探测到的异常行为补充观测背景，并依托团队广泛的协作网络开展诸多补充性科学研究。本项目及其前身项目自2007年启动以来，已助力发表21篇学术论文。我们正申请将该项目转为长期运行项目，借此将相关研究推进至平方公里阵列射电望远镜（Square Kilometre Array, SKA）时代。