报告人简介:吴思远，2023年博士毕业于南方科技大学，目前为英国南安普顿大学博士后。主要研究方向为行星磁层射电，行星极光，空间天气等方向，工作聚焦于土星，木星，地球的磁层射电信号，包括射电的产生机制，射电波传播，波粒相互作用，以及射电信号与太阳风-行星磁层活动之间的关系等方面。相关成果已经于Nature Communications, Science Advances, AGU Advances, Geophysical Research Letters, JGR-Space Physics, JGR-Planets, Space Weather, The Astrophysical Journal, Astronomy & Astrophysics等空间科学领域的权威期刊接收或发表。

报告摘要：Auroral kilometric radiation (AKR) is a powerful radio emission generated above the optical aurora during auroral electron precipitation. It provides a remote diagnostic of auroral activity and electron acceleration processes, and its emissions show a strong correlation with magnetospheric substorm activity. Since its discovery in the 1960s, extensive studies have investigated the generation mechanisms of AKR and its key characteristics, including polarization, intensity, propagation properties, etc. In this talk, I will briefly review both the historical and recent research on AKR and highlight several new advances. These include a newly derived global AKR distribution based on multi-spacecraft observations, new evidence for ducted propagation of AKR through the plasmasphere, and a comprehensive survey of AKR source crossings that, for the first time, reveals the global AKR source regions.