Parkes observations for project P1327 semester 2025APRS_16
收藏资源简介:
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.
射电辐射中子星涵盖自旋周期介于毫秒至数十秒的各类天体。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,我们探测到了与快速射电暴(fast radio bursts, FRBs)持续时长相当的单脉冲信号,其显著特征是包含与部分FRBs类似的准周期亚结构,而同类现象往往具备相似的物理机制。通过解析该源的单脉冲结构与偏振轮廓,我们期望厘清磁星(magnetars)射电辐射的起源,并建立银河中子星与FRBs之间的潜在关联。因此,我们强烈建议持续监测该源PSR J0901-4046,以期探测到更多来自该源的信号脉冲与具有研究价值的多结构脉冲,从而揭示磁星作为FRBs潜在前身天体的物理本质,进一步强化磁星与FRBs之间的关联纽带。



