Photo: Night view from Griffith Observatory, Los Angeles, California, US
2025
[6] Observational constraints on the nonlinear regime of gravity with a parametrized beyond-GR gravitational waveform model
Daiki Watarai, Atsushi Nishizawa, Hiroki Takeda, Hayato Imafuku, Kipp Cannon [arXiv]
[5] Analyzing black-hole ringdowns with orthonormal modes
Soichiro Morisaki, Hayato Motohashi, Motoki Suzuki, Daiki Watarai [arXiv]
[4] Statistical biases in parameterized searches for gravitational-wave polarizations
Hayato Imafuku, Hiroki Takeda, Atsushi Nishizawa, Daiki Watarai, Kipp Cannon, Phys.Rev.D112,024028, [arXiv]
2024
[3] Ringdown of a postinnermost stable circular orbit of a rapidly spinning black hole: Mass ratio dependence of higher harmonic quasinormal mode excitation
Daiki Watarai, Phys.Rev.D110,124029, [arXiv]
Daiki Watarai, Naritaka Oshita, Daichi Tsuna, [arXiv]
2023
[1] Physically consistent gravitational waveform for capturing beyond general relativity effects in the compact object merger phase
Daiki Watarai, Atsushi Nishizawa, Kipp Cannon, Phys.Rev.D109,084058, [arXiv]
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