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gr-qc2026
The Direct Wave is Not a Meaningful Test of Horizon Properties
Anuj Kankani, Sean T. McWilliams
Recently, a distinct non--quasinormal mode component of black hole binary merger radiation, named the direct wave, has been identified. The frequency and damping time of the direct…
gr-qc2026
Direct Waves in Black-Hole Binary Mergers: Insights from the Backwards One Body Model
Anuj Kankani, Sean T. McWilliams
The merger-ringdown radiation from a black hole binary merger is accurately modeled by a sum of linear quasinormal modes (QNMs). Recently, the ``direct wave" component of the radia…