Parkes observations for project P1327 semester 2024APRS_04

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介于数毫秒至数十秒的天体。然而近年来，超长周期射电暂现源的发现，给经典的中子星磁层偶极模型理论框架带来了全新挑战。本提案旨在研究射电辐射中子星PSR J0901-4046的独特性质，以及其光谱偏振特征与快速射电暴（Fast Radio Bursts, FRBs）的相似性。通过观测其单脉冲结构与偏振轮廓，我们期望阐明磁星（magnetars）的射电辐射起源，并建立银河系中子星与快速射电暴之间的潜在关联。本提案计划使用搭载超宽频低频接收机（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小时的观测以搜寻单脉冲信号。预期研究成果将包括探测到具有独特特征的丰富单脉冲样本，以及为中子星族群研究及其与快速射电暴的关联提供全新认知。