Parkes observations for project P1327 semester 2025APRS_09

The radio radiation neutron star includes objects with spin periods ranging from milliseconds to tens of seconds. In the past years, however, the discovery of ultra-long period radio transient sources has posed a new challenge to the classical theoretical framework of the neutron star magnetospheric dipole model. In Parkes' observations, we detected single pulses with similar durations to fast radio bursts (FRBs), notably containing quasi-periodic substructures similar to some FRBs, and similar phenomena may have similar physical mechanisms. By observing its single-pulse structures and polarization profiles, we hope to understand the origin of radio emission from magnetars and establish the potential association between Galactic neutron stars and FRBs. Hence, we strongly request to keep monitoring this source, aiming to detect more signal pulses and interesting multi-structure pulses from PSR J0901-4046 to provide insights into magnetars as possible progenitor origins of FRBs, strengthening the link between magnetars and FRBs.

射电辐射中子星是一类自旋周期覆盖毫秒至数十秒区间的天体。然而近年来，超长周期射电暂现源的发现，给中子星磁层偶极模型的经典理论框架带来了全新挑战。在帕克斯（Parkes）望远镜的观测中，我们探测到了持续时长与快速射电暴（fast radio bursts, FRBs）相近的单脉冲，其中尤为显著的是，部分脉冲包含与部分FRB相似的准周期亚结构，而类似的现象往往对应相似的物理机制。通过观测该源的单脉冲结构与偏振轮廓，我们旨在解析磁星（magnetars）的射电辐射起源，并建立银河系中子星与FRB之间的潜在关联。因此，我们强烈请求对该源（PSR J0901-4046）开展持续监测，以期探测到更多信号脉冲与具备复杂多结构的脉冲，从而深入探究磁星作为FRB潜在前身天体的可能性，进一步强化磁星与FRB之间的关联。