Core Insights - A Chinese research team utilized the "Huairou-1" satellite to observe a unique gamma-ray burst (GRB), identifying a rapidly rotating magnetar with a rotation period of only 1.1 milliseconds as a potential driver of the event, marking the first observation of millisecond pulsation signals in a gamma-ray burst [1][2] - The study, published in the journal Nature Astronomy, provides critical evidence for understanding the nature of products resulting from the merger of compact celestial bodies [1] Group 1 - The research was a collaboration between Nanjing University, the Institute of High Energy Physics of the Chinese Academy of Sciences, and the University of Hong Kong, and was published on September 19 [1] - Gamma-ray bursts are among the most intense explosive phenomena in the universe, with the mainstream view suggesting that some are produced by the merger of two neutron stars, leading to the formation of black holes or magnetars [1] - The breakthrough was based on the observation of GRB 230307A, the second brightest gamma-ray burst in human history, which was detected by the "Huairou-1" satellite on March 7, 2023, and exhibited high-energy gamma-ray radiation lasting nearly one minute, significantly longer than typical "short bursts" [1] Group 2 - The research team leveraged the high temporal resolution capabilities of the "Huairou-1" satellite to conduct an in-depth analysis of the observational data, identifying a central frequency of approximately 909 Hz and a signal duration of about 160 milliseconds, with a pulsation period closely matching the expected rotation period of a millisecond magnetar [2] - This finding enhances the understanding of the central engine of gamma-ray bursts and provides key insights into the evolution of compact celestial bodies under extreme physical conditions [2] - The "Huairou-1" satellite, launched in December 2020, serves as a monitor for gravitational wave counterparts and has achieved several original results in the fields of gamma-ray bursts, magnetar explosions, gravitational waves, and fast radio bursts [2]

Group 1 - The Ministry of Commerce expressed hope for a fair business environment for Chinese companies like TikTok in the U.S. [2] - The National Organization for Drug Procurement released the 11th batch of centralized drug procurement documents, emphasizing principles of clinical stability, quality assurance, and anti-competitive practices [2] - Kuaishou and Weibo responded to regulatory discussions by forming special teams for rectification and improving content management [2] Group 2 - The 2025 World Manufacturing Conference opened in Hefei, with over 1,000 guests from more than 40 countries, highlighting the increase in the threshold for the top 500 Chinese manufacturing companies [2] - The China-Laos Railway has facilitated over 1,500 million tons of goods since its operation, with significant growth in agricultural exports [2] - The construction of the Duku Highway project commenced, aiming to enhance transportation efficiency in the region [2] Group 3 - The first fully autonomous 500 kV substation in China was launched in Liaoning, showcasing advancements in domestic technology for power grid safety [2] - Research teams confirmed high-temperature superconductivity in nickel oxide materials, marking a significant scientific breakthrough [2] - Observations from the Huairou-1 satellite provided evidence of a millisecond pulsar associated with a gamma-ray burst, contributing to astrophysical research [2]

Core Insights - A Chinese research team has discovered that a gamma-ray burst (GRB) may be driven by a newly formed magnetar with a rotation period of only 1.1 milliseconds, marking the first observation of millisecond pulsation signals in a gamma-ray burst [1][2] - The study was conducted by Nanjing University, the Institute of High Energy Physics of the Chinese Academy of Sciences, and the University of Hong Kong, and published in the journal Nature Astronomy [1] Group 1 - The research utilized the "Huairou-1" satellite to analyze data from a particularly bright gamma-ray burst, GRB 230307A, which was detected on March 7, 2023, and emitted high-energy gamma rays for nearly one minute, significantly longer than typical short bursts [1][2] - The team identified a central frequency of approximately 909 Hz, with a signal duration of about 160 milliseconds, and a pulsation period of around 1.1 milliseconds, aligning with expectations for a magnetar's rotation period [2] - This finding enhances the understanding of the central engine of gamma-ray bursts and provides critical clues for revealing the evolution of compact objects under extreme physical conditions [2] Group 2 - The "Huairou-1" satellite, launched in December 2020, serves as a monitor for gravitational wave counterparts and has achieved several original results in the study of gamma-ray bursts, magnetar explosions, gravitational waves, and fast radio bursts [2]