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2026.04.16

Atoms, Grains, Infinity: Consistent update the understandings of dust grain physics in diffuse matter astrophysics

Dust grains are fundamental constituents of diffuse matter throughout the universe, mediating key processes from interstellar chemistry to planet formation. Yet their microscopic behaviors, presumably governed by interactions at surfaces, has traditionally been treated through empirical and semi-quantitative prescriptions in most astrophysical models. In this report, we present a series of bott...

2026.04.09

Evolution of Globular Cluster Systems from High Redshift to the Present

Globular clusters are massive star clusters that formed in high-redshift galaxies and remained gravitationally bound until the present. They serve as tracers of most active episodes of galactic star formation and allow us to reconstruct the assembly history of the Milky Way and nearby galaxies. I will describe a long-term program to model the formation and disruption of globular clusters throug...

2026.04.02

一颗持续活跃的快速射电暴 A Persistently Active Repeating Fast Radio Burst

Fast Radio Bursts (FRBs) are millisecond-duration, high-energy radio transients of unknown origin, whose large dispersion measures indicate extragalactic, and possibly cosmological, distances. With the rapid advancement of radio telescope capabilities, the number of detected FRBs has increased dramatically, greatly advancing studies of their physical origins and cosmological applications. Howev...

2026.03.26

Gas cycling processes in nearby galaxies

Galaxies evolve via internal and external processes. Kinematically misaligned galaxies, primarily stemming from external gas acquisition, are ideal probes of this process. From final data release of MaNGA, we selected ~700 misaligned galaxies (gas-gas, gas-star, star-star) and systematically investigated their origin and physical properties. Key findings: (1) Misaligned gas, often perpendicular...

2026.03.19

Resolving small-scale dynamics of supermassive black holes in galaxy formation simulations

Supermassive black hole (SMBH) binaries, formed during galaxy mergers, are the primary targets for low-frequency gravitational wave (GW) observatories. Understanding the coalescence process of SMBH binaries in a cosmological galaxy formation context is crucial for accurate GW predictions. However, this has been a long-standing challenge: traditional galaxy formation simulations lack the force r...

2026.03.09

Mapping 3D Interstellar Magnetic Fields in the Era of Wide-field Surveys

Magnetic fields play a fundamental role in regulating the evolution of interstellar medium and star formation in the Milky Way. However, a comprehensive picture of the 3-dimensional magnetic fields in the Galactic 3-dimensional interstellar space remains unavailable. Spectral-line polarization arising from the Zeeman effect and Goldreich-Kylafis effect probes magnetic fields with velocity infor...

2026.03.12

Uncovering dark matter distributions: from the Milky Way to nearby galaxies

Dark matter distribution in galaxies is a key to test the LCDM and galaxy formation models. We measure the dark-matter mass distribution for a representative sample of 140 nearby galaxies by combining IFU data from MaNGA and HI spectra from FAST. We find strong evidence that these galaxies exhibit a lower dark-matter densities in their inner regions than predicted by cosmological simulations in...

2026.03.05

Magneto-Ionic Environment Evolution of FRB 20220529: Clues to a Possible Binary Origin

Fast Radio Bursts (FRBs) are millisecond-duration cosmological transients with unclear origins. Understanding their origins requires not only identifying their emission mechanism, but also characterizing the environments in which they reside. Taking advantage of the high sensitivity of the Five-hundred-meter Aperture Spherical radio Telescope (FAST), we conducted long-term monitoring of the rep...

2026.01.15

Physical and Chemical Conditions of Planetary Birth Environments

Observational and theoretical studies of exoplanets have matured substantially since the discovery of the first planets outside our Solar System. We now know of thousands of such planets, and together with those in our Solar System, they show a vast diversity in their types, compositions, and orbital characteristics. Understanding this diversity requires understanding where planets form and evo...

2026.01.12

Probing Stellar Interiors in the Golden Era of Precision Stellar Astrophysics

Since 2010, pioneering time-domain photometric missions (CoRoT, Kepler, and TESS) together with extreme-precision radial-velocity instruments (VLT/ESPRESSO and Keck/KPF), have revealed a rich spectrum of low-amplitude stellar variability driven by rotation, convection, and oscillations. Among these phenomena, stellar oscillations provide a powerful probe of stellar interiors, enabling unique in...