Dr Ling (Lilli) Sun
Research Fellow, Centre for Gravitational Astrophysics, The Australian National University
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, 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:
continuous waves from neutron stars
gravitational waves from ultralight boson condensates around black holes
post-merger process and remnants of binary neutron star mergers
ringdown of binary black hole mergers
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:
Mar 9, 2023 Black hole spectroscopy by mode cleaning (arXiv:2301.06705) (Ma, Sun, Chen) is accepted in PRL; Using rational filters to uncover the first ringdown overtone in GW150914 (arXiv:2301.06639) (Ma, Sun, Chen) is accepted in PRD.
Jan 13, 2023 Generating transient noise artifacts in gravitational-wave detector data with generative adversarial networks (Powell, Sun, Gereb, Lasky, Dollmann) is published in Class. Quantum Grav. 40 035006 (2023), arXiv:2207.00207
Dec 15, 2022 Invited talk at 2022 AIP Congress: What does Australia bring to the global gravitational-wave detector network? Adelaide, Australia
Dec 13, 2022 Validating continuous gravitational-wave candidates from a semicoherent search using Doppler modulation and an effective point spread function (Jones, Sun, Carlin, Dunn, Millhouse, Middleton, Meyers, Clearwater, Beniwal, Strang, Vargas, Melatos) is published in Phys. Rev. D 106, 123011 (2022), arXiv:2203.14468
Oct 20, 2022 Quasinormal-mode filters: A new approach to analyze the gravitational-wave ringdown of binary black-hole mergers (Ma, Mitman, Sun, Deppe, Hébert, Kidder, Moxon, Throwe, Vu, Chen) is published in Phys. Rev. D 106, 084036 (2022), arXiv:2207.10870
Sep 26, 2022 Tracking a long-duration gravitational-wave signal with a hidden Markov model (Sun) is published in Nature Reviews Physics
May 27, 2022 The imprint of superradiance on hierarchical black hole mergers (Payne, Sun, Kremer, Lasky, Thrane) is published in ApJ, 931, 79 (2022), arXiv:2107.11730, [ANU News]
May 9, 2022 B. P. Abbott et al. (LIGO-Virgo-KAGRA Collaboration), All-sky search for gravitational wave emission from scalar boson clouds around spinning black holes in LIGO O3 data is published in PRD, Phys. Rev. D 105, 102001 (2022), arXiv:2111.15507
Apr 19, 2022 IWAVE — An Adaptive Filter Approach to Phase Lock and the Dynamic Characterisation of Pseudo-Harmonic Waves (Daw, Hollows, Jones, Kennedy, Mistry, Edo, Fays, Sun) is published in Rev. Sci. Instrum. 93, 044502 (2022), arXiv:2109.00104
Apr 11, 2022 Invited talk at 2022 APS April meeting (Isaacson Award Session): Hunting for Continuous Gravitational Waves -- Recent Searches and Astrophysical Implications, New York, USA
Apr 7, 2022 Impact of calibration uncertainties on Hubble constant measurements from gravitational-wave sources (Huang, Chen, Haster, Sun, Vitale, Kissel) is posted on arXiv:2204.03614
Mar 3, 2022 Invited talk at Sydney Consortium for Particle Physics and Cosmology (CPPC) seminar: Probing ultralight bosons with black holes and gravitational waves
Feb 3, 2022 Contributed talk at the 11th Australasian Conference on General Relativity and Gravitation (online): Ringdown emission patterns of remnant black holes
Jan 4, 2022 Angular emission patterns of remnant black holes (Li, Sun, Lo, Payne, Chen) is published in Phys. Rev. D 105, 024016 (2022), arXiv:2110.03116