Anna Liu

Gravitational-Wave Astrophysicist and a postdoc at University of Illinois Urbana-Champaign

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Welcome to my webpage! I’m Anna Liu (刘安娜), but my friends call me Ania, the Polish familiar form of my name. I am half-Polish half-Chinese. I am a postdoctoral researcher at the University of Illinois Urbana-Champaign (UIUC).

I finished my PhD in Gravitational-Wave (GW) Physics at the Chinese University of Hong Kong (CUHK) in June 2025, specialising in gravitational-wave data analysis of compact binary signals. I developed a phenomenological GW lensing model and have contributed to ringdown analyses of GWs. I am a member of the LIGO-Virgo-KAGRA Collaboration, contributing to the Testing General Relativity and Lensing Groups.

Education:

  • PhD Physics, The Chinese University of Hong Kong, 2021-2025
  • MSc Astronomy & Astrophysics, KU Leuven, Belgium, 2021
  • BA (Hons) Physics, University of Oxford, UK, 2018

Research Interest:

  • Gravitational waves from binary black holes: data analysis and phenomenology
  • Probing matter distribution in the Universe with gravitational-wave lensing
  • Probing General Relativity with black-hole ringdown

Languages:

Polish (native), Mandarin Chinese (native), English (fluent), German (conversational), Dutch (conversational), Russian (conversational)

My mini world map

selected publications

  1. Exploring the hidden Universe: a novel phenomenological approach for recovering arbitrary gravitational-wave millilensing configurations
    Anna Liu, Isaac CF Wong, Samson HW Leong, and 3 more authors
    Monthly Notices of the Royal Astronomical Society, 2023
  2. lensing_ppE_preview.png
    Millilensing induced systematic biases in parameterized tests of General Relativity
    Anna Liu, Rohit S. Chandramouli, Otto A. Hannuksela, and 2 more authors
    2024