Model-Independent Search for Gravitational Wave Echoes
Analysis
Key Takeaways
- •Developed a model-independent search method for gravitational wave echoes.
- •Employed a generalized phase-marginalized likelihood and noise suppression techniques.
- •Applied the method to LVK data from O1 to O4.
- •Set upper limits on the strength of potential echoes.
- •Provides constraints on theoretical models of black hole near-horizon structure.
“No statistically significant evidence for postmerger echoes is found.”