Complex frequency evolution of direct waves from binary black hole mergers

arXiv:2608.23209 · gr-qc, astro-ph.HE, hep-ph · Submitted 2026-08-24 · Read on arXiv

gr-qc, astro-ph.HE, hep-ph

Submitted: 2026-08-24

Updated: 2026-09-19

Comments: 20 pages, 10 figures, companion of arXiv:2609.09531

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Calibration — 6× in this paper · explained in 7 episodes
• Accuracy — 2× in this paper · explained in 1 episode
• Frequency Dependence — 2× in this paper · explained in 2 episodes
• Australian Research Council — 1× in this paper
• Benchmark — 1× in this paper · explained in 2 episodes
• Benchmarking — 1× in this paper · explained in 3 episodes
• Consistency — 1× in this paper · explained in 3 episodes
• Trace — 1× in this paper · explained in 2 episodes

Sources

• Probing Direct Waves in Black Hole Ringdowns
• GW250114 reveals black hole horizon signatures
• Modeling Direct Waves in Binary Black Hole Ringdowns
• Measuring a Black Hole's Area Immediately after Merger: A Direct-Wave Test of Hawking's Area Law
• The Direct Wave is Not a Meaningful Test of Horizon Properties
• Vanishing of all redshift modes in Schwarzschild ringdown
• Quasinormal-mode filters: a new approach to analyze the gravitational-wave ringdown of binary black-hole mergers
• Black hole spectroscopy by mode cleaning
• Using rational filters to uncover the first ringdown overtone in GW150914
• Foundations of Direct Waves in Schwarzschild Ringdown
• Gravitational Radiation from Plunging Orbits - Perturbative Study -
• New Generic Ringdown Frequencies at the Birth of a Kerr Black Hole
• GW250114: testing Hawking's area law and the Kerr nature of black holes
• Analytic Solutions of the Teukolsky Equation and their Low Frequency Expansions
• Pole structure of the Kerr Green's function
• Real-time correlators in Kerr/CFT correspondence
• Advanced LIGO
• Hybrid method for understanding black-hole mergers: Inspiralling case
• Horizon-redshift transfer in black-hole direct-wave damping
• Gravitational-wave echoes from numerical-relativity waveforms via space-time construction near merging compact objects

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• Unitary quantum matter-bounce in a universe with a positive cosmological constant
• Nonreciprocal black holes with primary hair in beyond Horndeski gravity: Exact solutions and stability