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This article investigates the properties of ringdown gravitational waves from binary black hole mergers, focusing on quasinormal modes (QNMs) and their overtones. The authors perform numerical simulations using a black hole perturbation scheme to generate accurate ringdown waveforms and propose a modified fitting formula for analyzing these signals. The study highlights the importance of including QNM overtones in gravitational wave data analysis to improve parameter estimation and test general relativity i

Author

Rajesh Karmakar

Language

EN