Professor WANG, Yihan

Current Research

• Dr. Wang's research centers on transient phenomena in time-domain and multi-messenger astrophysics, unified by a framework for the coupled evolution of accretion disks and stellar populations in galactic nuclei. Current interests include relativistic transients — gamma-ray burst afterglows, dirty fireballs, fast X-ray transients, and magnetar-powered emission from compact-object mergers; nuclear transients — disk-assisted tidal disruption events, changing-look AGN, and quasi-periodic eruptions; and gravitational-wave sources such as extreme mass-ratio inspirals and binary black holes formed in dense nuclear environments. As a member of the Einstein Probe (EP), SVOM, and LHAASO collaborations, Dr. Wang connects this theory to new high-energy observations, supported by the open-source codes SpaceHub and VegasAfterglow.

Research Interest

• Time-domain and multi-messenger astrophysics

• Gamma-ray bursts

• Fast X-ray transients

• Tidal disruption events

• Changing-look AGN

• AGN accretion disks

• Cluster dynamics

• Gravitational-wave sources

• High-energy transient follow-up (Einstein Probe, SVOM, LHAASO)

• Computational astrophysics

Representative Publications

• Wang, Y., Zhang, B., "Evidence of a Past Merger of the Galactic Center Black Hole", 2024, Nature Astronomy, 8, 1592

• Wang, Y., Perna, R., Zhu, Z., "Floating Binary Planets from Ejections during Close Stellar Encounters", 2024, Nature Astronomy, 8, 756

• Dai, C.-Y., Quirola-Vásquez, J., Wang, Y.-H., et al., "An Energetic Dirty Fireball Detected in Soft X-rays", 2026, Science, accepted (arXiv:2603.26213)

• Wang, Y., Zhu, Z., Lin, D. N. C., "Stellar/BH Populations in AGN Disks: Direct Binary Formation from Captured Objects in Nuclear Clusters", 2024, MNRAS, 528, 4958

• Wang, Y., Chen, C., Zhang, B., "VegasAfterglow: A High-Performance Framework for Gamma-Ray Burst Afterglows", 2025, JHEAp

• Wang, Y.-H., Leigh, N. W. C., Liu, B., Perna, R., "SpaceHub: A High-Performance Gravity Integration Toolkit for Few-Body Problems in Astrophysics", 2021, MNRAS, 505, 1053

• Wang, Y., Lin, D. N. C., Zhang, B., Zhu, Z., "Changing-Look AGN Behaviour Induced by Disk-Captured Tidal Disruption Events", 2024, ApJL, 962, L7

• Wang, Y., Zhang, B., Zhu, Z., "Anisotropic Energy Injection from Magnetar Central Engines in Short GRBs", 2024, MNRAS, 528, 3705

• Wang, Y.-H., Lazzati, D., Perna, R., "The Emergence of Diffused Gamma-Ray Burst Afterglows from the Disks of Active Galactic Nuclei", 2022, MNRAS, 516, 5935

Fellowships

Awards and Honours