Listening to the Horizon: Probing Near-Horizon Reflectivity with GW250114

arXiv:2610.12429 · gr-qc, astro-ph.HE · Submitted 2026-10-08 · Read on arXiv

gr-qc, astro-ph.HE

Submitted: 2026-10-08

Updated: 2026-10-08

Code: https://github.com/prasad-astrophy/GW2501

Terminology

• Direct Wave — 16× in this paper
• Calibration — 3× in this paper · explained in 7 episodes
• Accuracy — 2× in this paper · explained in 1 episode
• Einstein Telescope — 2× in this paper
• Robustness — 1× in this paper · explained in 5 episodes

Sources

• Quasinormal modes of black holes and black branes
• Black hole spectroscopy: from theory to experiment
• The Physics of Black Holes and Their Environments: Consequences for Gravitational Wave Science
• Black Hole Spectroscopy and Tests of General Relativity with GW250114
• GWTC-5.0: Tests of General Relativity
• Testing General Relativity with Gravitational Waves: An Overview
• Is the gravitational-wave ringdown a probe of the event horizon?
• Destabilizing the Fundamental Mode of Black Holes: The Elephant and the Flea
• Pseudospectrum and black hole quasi-normal mode (in)stability
• Gravitational wave signatures of black hole quasi-normal mode instability
• The observational evidence for horizons: from echoes to precision gravitational-wave physics
• Tests for the existence of horizons through gravitational wave echoes
• Testing the nature of dark compact objects: a status report
• Echoes from the Abyss: Tentative evidence for Planck-scale structure at black hole horizons
• Gravitational wave echoes through new windows
• Echoes from the Abyss: A highly spinning black hole remnant for the binary neutron star merger GW170817
• Low significance of evidence for black hole echoes in gravitational wave data
• Template-based Gravitational-Wave Echoes Search Using Bayesian Model Selection
• A morphology-independent search for gravitational wave echoes in data from the first and second observing runs of Advanced LIGO and Advanced Virgo
• Constraints on the amplitude of gravitational wave echoes from black hole ring-down using minimal assumptions

Related papers

• Tests of General Relativity with Einstein Telescope
• Unitary quantum matter-bounce in a universe with a positive cosmological constant
• Quasi-pole quintessential inflation in metric-affine gravity
• Dynamical tidal response of neutron stars: From effective field theory to gravitational waveforms
• Limits of the Rastall--Einstein Equivalence: Matter-Action Compatibility, FLRW Dynamics, and Exceptional Sectors
• Boson star-black hole binaries: initial data and head-on collisions