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The Gravitational Wave Research Group in CUHK

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Samson H. W. Leong

PhD student

samson.leong[at]link.cuhk.edu.hk

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Research interests

  • Gravitational-wave Bayesian data analysis
  • Recoil kick of remnant black hole
  • Modified theories of General Relativity

Education

  • Ph.D. Physics, The Chinese University of Hong Kong (2023-present)

Publications

Please refer to my INSPIRE page for the most updated list, below are some of my selected publications.

Cosmology and Fundamental Physics

  • Identifying Proca-star mergers via consistent ultralight-boson mass estimates across gravitational-wave events
    arXiv:2505.07544
  • Gravitational-wave signatures of mirror asymmetry in binary black hole mergers: measurability and correlation with gravitational-wave recoil
    arXiv:2501.11663
  • Testing mirror symmetry in the Universe with LIGO-Virgo black-hole mergers
    Phys. Rev. Lett. 134, 031402 (2025), arXiv:2402.09861, Phys.org
  • Searching for vector boson-star mergers within LIGO-Virgo intermediate-mass black-hole merger candidates
    Phys. Rev. D 108, 123020 (2023), arXiv:2206.02551
  • Gravitational-Wave Parameter Inference with the Newman-Penrose Scalar
    Phys. Rev. X 13, 041048 (2023), arXiv:2205.15029
  • Mapping the Universe Expansion: Enabling Percent-level Measurements of the Hubble Constant with a Single Binary Neutron-star Merger Detection
    ApJL 912 L10 (2021), arXiv:2006.11525

Black-hole Environments and AGNs

  • Constraining binary mergers in AGN disks using the non-observation of lensed gravitational waves
    ApJL 979 L27 (2025), arXiv:2408.13144
  • Detectability of dense-environment effects on black-hole mergers: The scalar field case, higher-order ringdown modes, and parameter biases
    Phys. Rev. D 108, 124079 (2023), arXiv:2308.03250

Black hole recoil

  • GW190412: measuring a black-hole recoil direction through higher-order gravitational-wave modes
    (Will appear in Nature Astron.), arXiv:2211.03465

Research blogs

  • What can we say about AGN with the non-observation of lensed GW?

    March 3, 2025
  • GW230529: 中子星與未知緻密天體的併合

    GW230529: 中子星與未知緻密天體的併合

    April 6, 2024
  • GW230529: A neutron star merging with an unknown compact object

    April 6, 2024

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We are the Gravitational Waves group in CUHK. Here you will find out more about our research and recent news!

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Department of Physics,
The Chinese University of Hong Kong,
Shatin, New Territories, Hong Kong.

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