Parkes observations for project P1327 semester 2024APRS_15

The radio radiation neutron star include objects with spin periods ranging from a few 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. This proposal aims to study the unique characteristics of the radio emitting neutron star, PSR J0901-4046, and the similarity of its spectro-polarimetric features with fast radio bursts (FRBs). 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. Using the Parkes/Murriyang 64-m radio telescope equipped with the Ultra-Wideband Low-Frequency receiver (UWL), we propose to conduct a total of 24-hour observations to search for single pulses. The expected outcomes include detecting rich single pulses with unique characteristics and providing insights into neutron star populations and their connection to FRBs.

射电辐射中子星涵盖自转周期从数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，对中子星磁层偶极模型的经典理论框架提出了全新挑战。本研究计划旨在剖析射电辐射中子星PSR J0901-4046的独特性质，并探究其光谱偏振特征与快速射电暴（Fast Radio Bursts, FRBs）的相似性。通过观测该源的单脉冲结构与偏振轮廓，我们期望厘清磁星射电辐射的起源，并建立银河系中子星与快速射电暴之间的潜在关联。本计划将使用配备超宽频低频接收机（Ultra-Wideband Low-Frequency receiver, UWL）的帕克斯/穆里扬64米射电望远镜，开展总计24小时的单脉冲搜寻观测。预期研究成果将包括探测到一批具有独特特征的丰富单脉冲样本，以及深化对中子星族群及其与快速射电暴关联机制的认知。