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Searching for gravitational wave echoes in GWTC-1 and O3 events

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arxiv 2010.07663 v1 pith:4PDE3K22 submitted 2020-10-15 gr-qc astro-ph.HE

Yu-Tong Wang , Yun-Song Piao This is my paper · ORCID
classification gr-qcastro-ph.HE
keywords echoeseventsechogravitationalgwtc-1imresigmawave
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abstract

Gravitational wave (GW) echoes, if they exist, would be a probe to the near-horizon physics of black hole. In this brief report, we performed the Monte Carlo Markov Chain analysis to search for echo signal in all GWTC-1 and O3 GW events. We focus on the Insprial-Merger-Ringdown-Echo (IMRE) waveform, and apply the Bayesian model selection to compare the IMRE result with IMR's (no echo). We find no statistically significant ($<1\sigma$ combined) evidence for the GW echoes and only individual GW events with the echoes at $1\sim 2\sigma$ significance.

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Cited by 1 Pith paper

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  1. Model-agnostic search of gravitational wave echoes in LVK data

    gr-qc 2025-12 conditional novelty 6.0 of 10

    A multi-detector phase-marginalized echo search finds no statistically significant long-lived quasinormal-mode echoes in GW150914, GW231226, and GW250114, and sets 90% upper limits on their network SNR and amplitude.

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