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Wed, 2024-07-03

"Motion Picture" Method Reveals the Shape of the Milky Way's Dark Matter Halo

Mon, 2024-07-01Recently, the international scientific journal Nature Astronomy published online the paper "A slightly oblate dark matter halo revealed by a retrograde precessing Galactic disk warp", which is jointly led by the University of Chinese Academy of Sciences , Peking University, the National Astronomical Observatory of the Chinese Academy of Sciences, and Shanghai Jiao Tong University. The international team pioneered the "motion picture" method for measuring the precession rate of the Milky Way's disk warp. Using a sample of Cepheid variable stars of different ages, this method allows the precession direction and rate of the Milky Way's warp to be clearly observed. Based on these measurements, the research team revealed that the current dark matter halo of the Milky Way is slightly oblate.

Opening Ceremony for the PKU 60-centimetre Telescope and Astronomy Teaching Practice Base

Mon, 2024-04-29On 26 April 2024, the opening ceremony of the "Peking University 60-centimetre Telescope and Astronomy Teaching Practice Base" was held at the Xinglong Observatory of the National Astronomical Observatories of the Chinese Academy of Sciences.

PKU Astronomers Reveal Over 1.5 Million Reliable Quasar Candidates from Gaia DR3

Mon, 2024-04-29KIAA announces an advancement in cosmic exploration with the release of the CatNorth quasar candidate catalog, as recently published in The Astrophysical Journal Supplement Series. The international collaborative study, led by Dr. Yuming Fu and Prof. Xue-Bing Wu, presents an enhanced set of over 1.5 million reliable quasar candidates, building upon the initial Gaia DR3 quasar candidate catalog noted for its substantial size but low purity.

A wobbling magnetised star challenges the origin of repeating fast radio bursts

Mon, 2024-04-08An international research team led by Gregory Desvignes from the Max Planck Institute for Radio Astronomy in Bonn, Germany, used the Effelsberg and Jodrell Bank radio telescopes to observe the precessing magnetar XTE J1810-197 — a highly magnetised and ultra-dense neutron star — shortly after its X-ray enhanced activity and radio reactivation. The study was co-authored by Dr. Yong Gao and Professor Lijing Shao from the Kavli Institute for Astronomy and Astrophysics at Peking University. This precession damped on a timescale of a few months challenging some models used to explain the origin of the mysterious repeating fast radio bursts. The results are published in this week’s issue of Nature Astronomy.

Dynamic View of Mass Assembly in Massive Protocluster Formation and Evolution

Tue, 2024-03-12Combining ALMA observations and single-dish observations including Atacama Pathfinder Experiment telescope (APEX) in Chile and James Clerk Maxwell Telescope (JCMT) in Hawaii, Fengwei Xu, a fourth-year Ph.D. student under the supervision of Prof. Ke Wang at the Kavli Institute for Astronomy and Astrophysics at Peking University, proposed a comprehensive evolutionary picture of how massive protoclusters are assembled. The series of works have been accepted for publication by Monthly Notice of the Royal Astronomical Society and The Astrophysical Journal Supplement Series.

Signing Ceremony of PKU - CWNU EAST Collaboration Agreement and Workshop on the Science Objectives of EAST held at ...

Fri, 2024-03-01On 29 February 2024, the Signing Ceremony of the Peking University (PKU)- China West Normal University (CWNU) Expandable Aperture Segmented Telescope (EAST) Project Collaboration Agreement and the Workshop on the Scientific Objectives of EAST were held at KIAA.

PKU Astronomy Holds the "Galaxies and Quasars" NSFC Innovative Research Group Project Summary Meeting

Fri, 2024-01-19On January 18, 2024, the summary meeting of the "Galaxies and Quasars" NSFC Innovative Research Group Project was held at KIAA. More than 40 leaders, experts, project members and faculty from NSFC, PKU, and other universities and institutes attended the meeting.

NAOC and KIAA Signed the Collaboration Agreement

Fri, 2023-12-08On December 6, 2023, NAOC and KIAA signed a Collaboration Agreement to strengthen research ties. The Signing Ceremony and first meeting of the Advisory Expert Group were both held at NAOC.

KIAA hosted the 2023 Annual Conference on Molecular Clouds and Star Formation

Mon, 2024-01-08​The 2023 Annual Conference on Molecular Clouds and Star Formation (SF2023) was held in Chongqing during October 26-31, 2023. The conference was hosted by KIAA at Peking University, and co-hosted by Chongqing University and Chongqing Astronomical Society.