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Wed, 2025-04-23PKU awarded six incoming astronomy postdocs as Boya Postdoctoral Fellows, from a competitive pool of over 50 candidates. Five of the postdocs, Suyeon Son, Anindya Saha, Logan Fries, Kan Chen, and Dan Qiu, are affiliated with KIAA, while one, Zhao Li, is affiliated with the DoA.
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Tue, 2025-04-22Prof.Kohei Inayoshi at KIAA was awarded the "The Young Scientists’ Award” from the Minister of Education, Culture, Sports, Science and Technology (MEXT) of Japan, a prestigious honor that recognizes and encourages exceptional young researchers in the fields of science and technology.
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Mon, 2025-04-21A group of astronomers has found over 1,300 new quasars behind the Galactic plane by using China's Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST), and the scientists said the results shed new light on some hot issues of cosmic research.
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Tue, 2025-04-01Recently, the Max Planck Society (MPG) approved the establishment of a new Max Planck Partner Group led by Dr. Jinyi Shangguan, an Assistant Professor at the Kavli Institute for Astronomy and Astrophysics (KIAA) at Peking University. The group will focus on “Probing Supermassive Black Hole Evolution with Near-infrared Interferometry” and collaborate closely with the infrared research team led by Prof. Reinhard Genzel and Prof. Frank Eisenhauer, Directors of the Max Planck Institute for Extraterrestrial Physics (MPE) in Garching.
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Tue, 2025-04-01Recently, Lile Wang and Suwei Wang from KIAA were interviewed by Professor Frank Timmes, deputy editor of the American Astronomical Society (AAS) journals.
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Fri, 2025-03-28A research team led by Professor Liu Fukun from the Department of Astronomy at the School of Physics of Peking University and the Kavli Institute for Astronomy and Astrophysics recently discovered that the supermassive black hole at the center of our galaxy, Sgr A*, merged with an intermediate black hole about 10 million years ago. When stars get too close to a supermassive black hole, they can be thrown out at high speeds and become a hypervelocity star. By analyzing the velocity distribution of these hypervelocity stars in the Milky Way halo, the team found that between 50 and 250 million years ago, an intermediate-mass black hole of approximately 15,000 times the mass of the Sun existed near the supermassive black hole Sgr A* at the Galactic center.
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Mon, 2025-03-03
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Thu, 2025-02-20Recently, researchers from the University of Chinese Academy of Sciences, National Astronomical Observatories, Yunnan Observatories, Peking University, Beijing NormalUniversityproposed that searching for high-velocity stars ejected from globular clusters due to the gravitational slingshot effect (Hills mechanism) could provide compelling evidence for the long-sought intermediate-mass black holes (IMBHs). By conducting detailed orbital backtracking of nearly a thousand high-velocity stars identified in Gaia and LAMOST data, along with over a hundred globular clusters in the Milky Way, the research team discovered that the high-velocity star J0731+3717 was ejected from the globular cluster M15 approximately 20 million years ago at an extreme velocity of nearly 550 km/s, with a confidence level of 5.4σ. This exceptionally high ejection speed is most likely caused by the Hills mechanism, suggesting the possible presence of an intermediate-mass black hole at the center of M15. This study has been published as the cover article in the February 2025 issue of National Science Review (NSR), titled "A high-velocity star recently ejected by an intermediate-mass black hole in M15." Associate Professor Yang Huang from the University of Chinese Academy of Sciences is the co-first author and corresponding author of the paper. Dr. Qingzheng Li (a graduate student of Yunnan Astronomical Observatory) is also a co-first author. Researcher Jifeng Liu from the National Astronomical Observatories, Researcher Xiaobo Dong from Yunnan Astronomical Observatory, and Professor Huawei Zhang from Peking University are co-corresponding authors.
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Fri, 2025-02-07An international team of researchers led by PKU PhD student Qinyue Fei has found dark matter dominating the halos of two supermassive black holes in galaxies roughly 13 billion light years away, reports a new study published in The Astrophysical Journal on 5 February 2025.
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Wed, 2025-01-08On November 8, 2024, astronomers at Caltech's Palomar Observatory directed a brand-new spectrograph instrument, the Next Generation Palomar Spectrograph (NGPS), to capture data from a newfound supernova. The resulting spectrum from the erupting star was a delight for the many team members in the USA and China, including at Peking University, who have been working on the instrument since 2017. The new first-light spectrum demonstrates new instrument's ability to capture more detail, and fainter targets, than its predecessor, the Double Spectrograph, which was installed on the historic Hale Telescope more than 40 years ago.
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