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Horizon-absorption effects in coalescing black-hole binaries: An effective-one-body study of the non-spinning case

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arxiv 1207.0769 v2 pith:ZVF5CGNO submitted 2012-07-03 gr-qc

Sebastiano Bernuzzi , Alessandro Nagar , Anil Zenginoglu This is my paper · ORCID
classification gr-qc
keywords horizonbinarieseffective-one-bodyfluxesmassperturbativeresummedabsorption
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We study the horizon absorption of gravitational waves in coalescing, circularized, nonspinning black hole binaries. The horizon absorbed fluxes of a binary with a large mass ratio (q=1000) obtained by numerical perturbative simulations are compared with an analytical, effective-one-body (EOB) resummed expression recently proposed. The perturbative method employs an analytical, linear in the mass ratio, effective-one-body (EOB) resummed radiation reaction, and the Regge-Wheeler-Zerilli (RWZ) formalism for wave extraction. Hyperboloidal (transmitting) layers are employed for the numerical solution of the RWZ equations to accurately compute horizon fluxes up to the late plunge phase. The horizon fluxes from perturbative simulations and the EOB-resummed expression agree at the level of a few percent down to the late plunge. An upgrade of the EOB model for nonspinning binaries that includes horizon absorption of angular momentum as an additional term in the resummed radiation reaction is then discussed. The effect of this term on the waveform phasing for binaries with mass ratios spanning 1 to 1000 is investigated. We confirm that for comparable and intermediate-mass-ratio binaries horizon absorbtion is practically negligible for detection with advanced LIGO and the Einstein Telescope (faithfulness greater than or equal to 0.997).

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Horizon absorption in eccentric precessing binary black hole inspirals and its importance for gravitational wave data analysis

    gr-qc 2026-06 unverdicted novelty 7.0 of 10

    First leading-PN derivation of horizon absorption in eccentric precessing BBH inspirals, incorporated into pyEFPEHM, with estimates showing parameter biases in eccentric systems at moderate SNR.

  2. Semilinear wave equations in homothetic hyperboloidal coordinates and tail decay

    gr-qc 2026-08 conditional novelty 6.0 of 10

    Homothetic hyperboloidal coordinates give semilinear wave tails the same exponential decay rate at every compactified radius, removing the late-time resolution bottleneck.

  3. Advancing the Effective-One-Body Framework in the Test-Mass Limit

    gr-qc 2026-03 conditional novelty 6.0 of 10

    SEOB-TML cuts dephasing by up to an order of magnitude in the test-mass limit by Q-factorizing the flux (including horizon absorption) and by modeling mode mixing with extracted QNM coefficients.

  4. Characterizing the Properties and Constitution of Compact Objects in Gravitational-Wave Binaries

    gr-qc 2024-11 conditional novelty 5.0 of 10

    Tidal heating imprints from black hole horizons can be captured by two effective parameters and modeled through merger, offering a future test to distinguish black holes from exotic horizonless objects.

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