8 papers
Ensemble-Based Residual Tests of GW231123 across Waveform Models
Dicong Liang, Hai-Tian Wang, Junlin Qin +3
GW231123 is an exceptional gravitational wave event for which different waveform models yield significantly different inferred source parameters. Residual tests provide a direct wa…
Constraints on parity and Lorentz violations from gravitational waves: a comparison between single-parameter and multi-parameter analysis
Wei-Hua Guo, Yuan-Zhu Wang, Tao Zhu +1
The growing catalog of gravitational wave (GW) detections by the LIGO-Virgo-KAGRA Collaboration enables increasingly stringent tests of general relativity, particularly regarding p…
A Robust and Efficient F-statistic-based Framework for Consistent Bayesian Inference of Compact Binary Coalescences
Hai-Tian Wang
We present a comprehensive investigation of the F-statistic method for parameter estimation of gravitational wave (GW) signals from compact binary coalescences. By analytically max…
Cracking Gravitational Wave Multiple Ringdown Modes in Space
Ziming Wang, Han Wang, Yuxin Yang +4
Ringdown signals from perturbed black holes (BHs) offer a clean window into BH spacetime, strong-field gravity, and fundamental physics. Presently the quasi-normal modes of stellar…
First Overtone Mode in the Ringdown Signal of GW231028
Hai-Tian Wang
The properties of a remnant black hole can be probed by analyzing the gravitational waves emitted during its ringdown phase. This signal provides a direct test of general relativit…
Reanalyzing the ringdown signal of GW150914 using the F-statistic method
Hai-Tian Wang, Ziming Wang, Yiming Dong +2
The ringdown phase of a gravitational wave (GW) signal from a binary black hole merger provides valuable insights into the properties of the final black hole and serves as a critic…