Work

Gravitational Wave Echoes

Year: 2025

Type: article

Abstract: Gravitational waves (GWs) are predicted by general relativity (GR) as freelypropagating disturbances of spacetime. However, tentative detections of postmerger“echoes” by LIGO/Virgo suggest additional structure. Here we show thatthe framework naturally predicts a harmonic modulation of GWs linked to theuniversal timescale T , producing echo signals with characteristic delays of order10􀀀2 s. This effect requires no modification of black hole horizons, but followsdirectly from the harmonic nature of spacetime in .

Source: Zenodo (CERN European Organization for Nuclear Research)

DOI: 10.5281/zenodo.17420174

Author: Edoardo Livolsi

Language: English

Topic: Pulsars and Gravitational Waves Research

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W7093343664

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