Dr Ling (Lilli) Sun
Research Fellow, Centre for Gravitational Astrophysics, The Australian National University
ARC DECRA Fellow
Research Fellow, Centre for Gravitational Astrophysics, The Australian National University
ARC DECRA Fellow
I am a research fellow at the Centre for Gravitational Astrophysics (CGA) at the Australian National University. I am a member of the Laser Interferometer Gravitational-wave Observatory (LIGO) Scientific Collaboration, an ARC DECRA Fellow, and one of the Chief Investigators of the ARC Centre of Excellence for Gravitational Wave Discovery (OzGrav).
My primary research interests are gravitational-wave data analysis and studying fundamental physics from gravitational-wave observations, including:
black hole superradiance, ultralight bosons, particle dark matter
black hole spectroscopy
binary neutron star post-merger physics
continuous waves from neutron stars
calibration of the gravitational-wave detectors
science of the next-generation detectors
In particular, I am interested in bringing together advanced computing and signal processing techniques, gravitational-wave data and theory, as well as the understanding of the instruments for gravitational-wave observation.
News:
Oct 8, 2025 Toward Low-Latency, High-Fidelity Calibration of the LIGO Detectors with Enhanced Monitoring Tools (Wade, Betzwieser, Bhattacharjee, Dartez, Goetz, Kissel, Sun, Viets, Carney, Makelele, Wade) is published on CQG, arXiv:2508.08423 (2025)
Oct 1, 2025 GW250114 reveals black hole horizon signatures (Lu, Ma, Piccinni, Chen, Sun) is posted on arXiv:2510.01001 (2025)
Sep 20, 2025 Impact of Detector Calibration Accuracy on Black Hole Spectroscopy (Sinha, Sun, Ma) is accepted in PRD, arXiv:2506.15979 (2025)
Sep 17, 2025 Statistical identification of ringdown modes with rational filters (Lu, Ma, Piccinni, Sun, Finch) is published in Phys. Rev. D 112, 064047 (2025), arXiv:2505.18560
Sep 10, 2025 GW250114: Testing Hawking’s Area Law and the Kerr Nature of Black Holes (LIGO-Virgo-KAGRA Collaboration) is published in Phys. Rev. Lett. 135, 111403 (2025); Black Hole Spectroscopy and Tests of General Relativity with GW250114 (LIGO-Virgo-KAGRA Collaboration) is posted on arXiv:2509.08099 (2025)
Sep 9, 2025 GW230814: investigation of a loud gravitational-wave signal observed with a single detector (LIGO-Virgo-KAGRA Collaboration) is posted on arXiv:2509.07348 (2025)
Sep 9, 2025 Directed searches for gravitational waves from ultralight vector boson clouds around merger remnant and galactic black holes during the first part of the fourth LIGO-Virgo-KAGRA observing run (LIGO-Virgo-KAGRA Collaboration) is posted on arXiv:2509.07352 (2025)
Jul 29, 2025 Ultralight boson constraints from gravitational wave observations of spinning binary black holes (Aswathi, East, Siemonsen, Sun, Jones) is posted on arXiv:2507.20979 (2025)
Apr 24, 2025 Invited talk at "From Quarks to Neutron Stars: Insights from kHz Gravitational Wave" workshop: Gravitational Wave Discoveries — Now and the Near Future, Tokyo, Japan
Apr 7, 2025 Search for continuous gravitational waves from neutron stars in five globular clusters with a phase-tracking hidden Markov model in the third LIGO observing run (Dunn, Melatos, Clearwater, Suvorova, Sun, Moran, Evans) is published in Phys. Rev. D 111, 083012 (2025), arXiv:2503.15773
Apr 1, 2025 Media release "Random conversation leads to innovative dark matter detector design"
Mar 24, 2025 Differential torsion sensor for direct detection of ultralight vector dark matter (Sun, Slagmolen, Qin) is published in Phys. Rev. D 111, 063064 (2025), arXiv:2402.08935
Mar 12, 2025 Impact of calibration uncertainties on Hubble constant measurements from gravitational-wave sources (Huang, Chen, Haster, Sun, Vitale, Kissel) is published in Phys. Rev. D 111, 063034 (2025), arXiv:2204.03614
Mar 11, 2025 Mapping inspiral-merger-ringdown waveforms of binary black holes from black hole perturbation waveforms by machine learning (Zhong, Han, Sun) is published in Phys. Rev. D 111, 064033 (2025), arXiv:2503.04534
Mar 10, 2025 Methodology for constraining ultralight vector bosons with gravitational wave searches targeting merger remnant black holes (Jones, Siemonsen, Sun, East, Miller, Wette, Piccinni) is published in Phys. Rev. D 111, 063028 (2025), arXiv:2412.00320
Feb 26, 2025 Determination of the birth-mass function of neutron stars from observations (You et al.) is published in Nature Astronomy (2025), arXiv:2412.05524