通过深入分析"怀柔一号"极目卫星的观测数据，科研团队在爆发后约24秒处，发现一段中心频率为 909赫兹、频率高度稳定且仅持续160毫秒的准周期振荡信号。该信号的脉动周期约1.1毫秒，与团队预 期的毫秒级磁陀星自转周期高度吻合。这表明，驱动该伽马暴的是一颗自转周期为1.1毫秒的磁陀星。 这是人类首次在伽马暴中观测到周期稳定的毫秒级脉动信号，为揭示致密天体并合产物的性质提供 了关键证据。 未来，研究团队将继续利用"极目""慧眼""天关"和SVOM（天基多波段空间变源监视器）等卫星的 观测数据，在更多伽马暴中寻找准周期振荡信号，并结合理论和数值模拟研究，全面理解磁陀星驱动伽 马暴的物理机制。 （原载于《科技日报》2025-09-21 01版） 记者从中国科学院高能物理研究所获悉，由南京大学、中国科学院高能物理研究所和香港大学组成 的合作团队，利用"怀柔一号"极目卫星对一例特殊伽马暴的高精度观测数据，发现了磁陀星驱动伽马暴 的直接证据。该研究成果于9月19日发表于《自然·天文学》。 伽马暴是宇宙中最明亮、最剧烈的爆发现象之一，其在数秒内释放的能量可超过太阳一生所释放的 总能量。学界猜测伽马暴的驱动天体可能是黑洞或磁陀 ...

Core Viewpoint - The "Tian Guan" satellite has successfully captured a fleeting cosmic X-ray signal, providing a new perspective on the process of stellar death, marking a significant advancement in the field of time-domain astronomy [5][6]. Group 1: Satellite Overview - "Tian Guan" satellite is the first large-field X-ray imaging satellite in the world, designed for high-sensitivity real-time dynamic sky monitoring in the soft X-ray band [5][10]. - The satellite aims to discover transient sources and explosive celestial bodies, referred to as "cosmic fireworks," which appear briefly and then vanish [8][9]. - The satellite's name is derived from a historical supernova event recorded in ancient China, symbolizing a reconnection with historical astronomical observations [6][7]. Group 2: Technical Innovations - The satellite features three standout characteristics: large field of view, high sensitivity, and precise positioning, enabling it to detect and locate transient sources effectively [10][11]. - It employs a unique "big eye" and "small eye" design, utilizing 12 soft X-ray telescopes for wide-field observation and 2 follow-up X-ray telescopes for detailed imaging [11][12]. - The "Tian Guan" satellite incorporates "lobster eye" microchannel optical technology, allowing it to focus soft X-rays effectively, which is a significant innovation in X-ray astronomy [12][13]. Group 3: Communication and Collaboration - The satellite is designed to communicate effectively with ground-based equipment and other satellites, establishing a real-time communication network using VHF and BeiDou short message systems [15]. - This communication capability enhances the satellite's observational effectiveness by allowing rapid sharing of data with global astronomical observatories [15]. Group 4: Team and Talent Development - The development team for the "Tian Guan" satellite is relatively young, with a focus on fostering new talent in the field of space science, emphasizing the need for interdisciplinary skills [16][17]. - The team aims to cultivate a new generation of space science professionals who are passionate about long-term engagement in this field, ensuring sustainable development [18][19].