Core Viewpoint - Chinese scientists have discovered a rare millisecond pulsar using the FAST telescope, which orbits another star and is obscured for one-sixth of the time by its companion star. This discovery is significant for the study of stellar evolution and gravitational wave sources in binary star systems [1]. Group 1 - The discovery involves a unique binary star system that is extremely rare and difficult to observe [1]. - The research findings were published in the international academic journal "Science" on May 23 [1]. - The study has important implications for understanding stellar evolution and gravitational waves within the Milky Way [1].

Core Viewpoint - The discovery of a rare millisecond pulsar by the FAST telescope has significant implications for the understanding of stellar evolution, dense star accretion physics, and gravitational wave sources from binary star mergers [1][3][4]. Group 1: Discovery and Characteristics - The research team led by researcher Han Jinlin from the National Astronomical Observatories of China discovered a millisecond pulsar with a rotation period of 10.55 milliseconds, orbiting a companion star every 3.6 hours [1][3]. - The companion star is estimated to have a mass at least equal to that of the Sun, but its compact orbit suggests it is not a typical star, but rather a stripped-down core of a star that has undergone common envelope evolution, likely a hot helium star [3][4]. Group 2: Implications for Astronomy - This unique binary system is extremely rare, with only a few dozen such systems estimated to exist among the hundreds of billions of stars in the Milky Way, making it a fleeting phenomenon in the universe [4]. - The findings are expected to enhance the understanding of stellar evolution processes, including how stars interact and exchange material, and the dynamics of neutron stars entering companion stars [4]. Group 3: FAST Telescope Capabilities - The FAST telescope, known as the "Chinese Sky Eye," has discovered over 1,000 pulsars since its operation began in 2020, serving as a crucial tool for deep space exploration [5]. - Its advanced design allows it to detect weak signals from billions of light-years away, contributing to significant astronomical discoveries, including the first complete recording of a gamma-ray burst's lifecycle [5].

Core Findings - A rare millisecond pulsar has been discovered based on observations from the "Chinese Sky Eye" (FAST), which orbits a companion star every 3.6 hours, with periodic eclipses lasting 0.6 hours [1][2] - This discovery is significant for understanding stellar evolution theories, compact star accretion physics, and gravitational wave generation mechanisms [1] Group 1: Discovery Details - The discovered pulsar, PSR J1928+1815, has a rotation period of 10.55 milliseconds and was confirmed to have a companion star after six months of tracking [1] - The companion star is unusually massive, comparable to the Sun, but has a very small orbit of only 500,000 kilometers, which is not typical for eclipsing pulsar companions [2] Group 2: Scientific Implications - The findings validate the theory of common envelope evolution in binary star systems, enhancing the understanding of how stars interact and exchange material [2] - The companion star may have accumulated significant material during the common envelope phase, providing insights into neutrino cooling mechanisms [2] - This unique binary system could eventually evolve into a source of gravitational waves, offering new clues for studying gravitational wave generation [2]

Core Findings - Chinese scientists have discovered a rare millisecond pulsar that orbits its companion star with a period of 3.6 hours and is obscured by the companion star for one-sixth of the time, akin to an eclipse [1] Group 1 - The discovery was made using the Chinese radio telescope FAST, which highlights advancements in astronomical research capabilities in China [1] - This finding has significant implications for theories of stellar evolution, the physics of compact star accretion, and the study of gravitational wave sources from binary star mergers [1] - The research results were published in the international academic journal "Science" on May 23 [1]

日前，荣获2025年度中国青年五四奖章的南京大学物理学院教授杜灵杰刚从北京回到南京，就一头扎进 他在南京大学鼓楼校区唐仲英楼的量子极端测量实验室。 去年3月，他和团队在人类历史上第一次为引力子"画像"，那篇发表在国际权威学术期刊《自然》上的 论文，就在这里诞生。 爱因斯坦曾基于广义相对论提出，剧烈的天体活动会带动周围的时空产生波动，也就是引力波。近年 来，随着引力波被多座国际大科学装置探测证实，这一概念已为大众熟知。引力子源于广义相对论与量 子力学的交叉领域，不少理论物理学者认为，如果引力子确实存在，意味着广义相对论和量子力学能够 被统一，人类文明将翻开新的一页。 就好比黑夜里的一瞬亮光，凭什么说那有一个人擦亮了火柴，也许是一只萤火虫。 物理学界的谨慎有其原因，当时国外曝光了多起所谓"科学大发现"，均被迅速证伪。 夏日的圣塞巴斯蒂安号称拥有"欧洲最美沙滩"，但杜灵杰毫无心情欣赏。"只感觉眼前都是乌云。"他闭 关想了很久，"越是重大成果，越要无懈可击，作为科研人员，我们必须正视问题，实事求是，小心求 证。" 但要获得决定性的证据，就得设计新实验，以测得动量更小的激发。 杜灵杰研究的，就是凝聚态系统中的"分数量子 ...

获取实验必需的液氮殊为不易，杜灵杰被迫改变技术路线；南方潮湿的环境会折损激光效果，他和团队 只能反复调试……转眼就是三年。 4月30日，荣获2025年度中国青年五四奖章的南京大学物理学院教授杜灵杰刚从北京回到南京，就一头 扎进他在南京大学鼓楼校区唐仲英楼的量子极端测量实验室。去年3月，他和团队在人类历史上第一次 为引力子"画像"，那篇发表在国际权威学术期刊《自然》上的论文，就在这里诞生。 爱因斯坦曾基于广义相对论提出，剧烈的天体活动会带动周围的时空产生波动，也就是引力波。近年 来，随着引力波被多座国际大科学装置探测证实，这一概念已为大众熟知。引力子源于广义相对论与量 子力学的交叉领域，不少理论物理学者认为，如果引力子确实存在，意味着广义相对论和量子力学能够 被统一，人类文明将翻开新的一页。 杜灵杰研究的，就是凝聚态系统中的"分数量子霍尔引力子"。"我们生活中的固体、液体，都属于凝聚 态。理论推测，'分数量子霍尔液体'这种凝聚态物质中，引力子可能以准粒子的形式涌现。"杜灵杰 说，"这种'分数量子霍尔引力子'表现为集体模式激发，也称为'引力子模'或引力子激发，就像宁静的湖 面上突然激起不可胜数的涟漪。" 引力波探 ...