利用TRON挖掘时间轴。II. MeerKAT探测到来自一颗遥远RS CVn候选体的恒星射电耀发
Mining the time axis with TRON. II. MeerKAT detects a stellar radio flare from a distant RS CVn candidate
AI总结：
本研究利用TRON管线挖掘MeerKAT存档数据，发现一例来自1334 pc外G型恒星的射电耀发暂现源，其特征符合RS CVn型变源的电子回旋脉泽不稳定性机制，拓展了中等时标射电暂现源的观测样本。
摘要：
中等时标（数分钟至数小时）的射电暂现源是一类相对尚未被充分探索的天体群体。MeerKAT等仪器的宽视场与高瞬时灵敏度，为利用像平面探测技术研究这类源提供了契机。本系列的前一篇快报介绍了我们的项目及配套的TRON（暂现源挖掘）管线，该管线旨在挖掘MeerKAT存档数据以搜寻暂现源与变源。在本篇快报中，我们报道了一例新的暂现事件——一次射电耀发，其对应体为Gaia DR3 6865945581361480448，这是一颗G型恒星，根据其视差计算距离为1334 pc。该耀发的持续时间及高圆偏振度表明，其辐射机制为电子回旋脉泽不稳定性，符合RS CVn型变源的特征。
英文摘要：
Medium-timescale (minutes to hours) radio transients are a relatively unexplored population. The wide field-of-view and high instantaneous sensitivity of instruments such as MeerKAT provides an opportunity to probe this class of sources, using image-plane detection techniques. The previous letter in this series describes our project and associated TRON pipeline designed to mine archival MeerKAT data for transient and variable sources. In this letter, we report on a new transient, a radio flare, associated with Gaia DR3 6865945581361480448, a G type star, whose parallax places it at a distance of 1334 pc. Its duration and high degree of circular polarization suggests electron cyclotron maser instability as the mechanism, consistent with an RS CVn variable.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
