绘架座β（Beta Pictoris）是一个极为年轻的行星系统，其年龄不足太阳系的百分之一，包含一颗比太阳质量更大的恒星、三颗巨行星以及庞大的尘埃碎片盘。其中，绘架座β b是一颗质量为木星数倍的气态巨行星，由于其年轻、炽热且明亮，且与母恒星的距离适中，成为天文学家透过直接观测研究最深入的系外行星之一；此外，韦伯太空望远镜最近也拍摄到了该系统中的第三颗行星绘架座β d。

来自哈佛大学与奥勒冈大学的研究团队利用南非的MeerKAT电波望远镜，首次明确探测到来自绘架座β b的无线电讯号。这项研究指出，该讯号并非外星生命所发出，而是源自行星极为强烈的磁场活动所产生的极光电波辐射；当带电粒子被行星磁场捕获并随著自转加速时，便会向太空中释放电波能量，这也是科学家多年来首次将此类电波讯号精确定位到系外行星本体。

过去天文学家虽曾观察到类似现象（例如2023年在YZ Ceti系统中发现的讯号），但始终无法完全排除讯号源自恒星活动的可能性。绘架座β在天文史上具有关键地位，早在1984年它就是人类首度直接拍摄到残留碎片盘的恒星，暗示了行星形成过程的存在，如今这项首度确认来自系外行星的无线电讯号发现，再次为该系统写下了天文学的新里程碑。

Beta Pictoris is an extremely young planetary system less than one percent the age of our solar system, consisting of a massive star, three giant planets, and a vast debris disk. The gas giant Beta Pictoris b, several times the mass of Jupiter, is one of the most thoroughly studied exoplanets via direct imaging due to its youth, high temperature, luminosity, and favorable orbital separation, while recent imagery from the James Webb Space Telescope has also revealed a third planet, Beta Pictoris d.

A research team from Harvard and the University of Oregon has detected radio signals originating directly from Beta Pictoris b using South Africa's MeerKAT radio telescope. The authors emphasize that these emissions are natural in origin and provide compelling evidence that they arise from powerful planetary magnetic activity—known as auroral radio emissions—where trapped charged particles accelerate as the planet rotates, marking the first time scientists have definitively pinpointed such radio signals to an exoplanet.

While previous observations, such as the 2023 bursts detected in the YZ Ceti system, could not definitively rule out stellar magnetic interference, this discovery successfully isolates the emission to the exoplanet itself. Historically, Beta Pictoris was the first star around which a circumstellar debris disk was directly photographed in 1984, and this latest breakthrough of confirmed exoplanetary radio emissions adds another landmark achievement to the system's astronomical legacy.