3 papers
gr-qc2025
Observational constraints on the nonlinear regime of gravity with a parametrized beyond-GR gravitational waveform model
Daiki Watarai, Atsushi Nishizawa, Hiroki Takeda +2
Gravitational waves from compact binary coalescences provide unique opportunities to test general relativity (GR) in the strong-field regime. In particular, the merger phase, durin…
gr-qc2025
Physically consistent gravitational waveform for capturing beyond general relativity effects in the compact object merger phase
Daiki Watarai, Atsushi Nishizawa, Kipp Cannon
The merger phase of compact binary coalescences is the strongest gravity regime that can be observed. To test the validity of general relativity (GR) in strong gravitational fields…
gr-qc2025
Statistical biases in parametrized searches for gravitational-wave polarizations
Hayato Imafuku, Hiroki Takeda, Atsushi Nishizawa +2
In tests of gravity using gravitational waves (GWs), GW events analyzed are often selected based on specific criteria, particularly the signal-to-noise ratio. However, such event s…