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Recoil Velocities from Equal-Mass Binary-Black-Hole Mergers

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arxiv gr-qc/0701163 v2 pith:FZUKC5ZM submitted 2007-01-29 gr-qc

Michael Koppitz , Denis Pollney , Christian Reisswig , Luciano Rezzolla , Jonathan Thornburg , Peter Diener , Erik Schnetter This is my paper · ORCID
classification gr-qc
keywords binariesrecoilvelocitiesasymmetryequal-massspinsunequalangular
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abstract

The final evolution of a binary black-hole system gives rise to a recoil velocity if an asymmetry is present in the emitted gravitational radiation. Measurements of this effect for non-spinning binaries with unequal masses have pointed out that kick velocities $\sim~175$ km/s can be reached for a mass ratio $\simeq 0.36$. However, a larger recoil can be obtained for equal-mass binaries if the asymmetry is provided by the spins. Using two independent methods we show that the merger of such binaries yields velocities as large as $\sim 440$ km/s for black holes having unequal spins that are antialigned and parallel to the orbital angular momentum.

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Cited by 2 Pith papers

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

  1. Accurate models for recoil velocity distribution in black hole mergers with comparable to extreme mass-ratios and their astrophysical implications

    gr-qc 2025-11 conditional novelty 6.0 of 10

    New analytic, GPR, and normalizing-flow kick models for black-hole mergers trained from q=1 to q≈200, with cluster-retention consequences.

  2. Eccentricity Effects on Modeling Dynamic Quantities and Their Correlations in Binary Black Hole Mergers

    gr-qc 2025-01 conditional novelty 5.0 of 10

    Varying the initial orbital phase of an eccentric binary black hole at fixed eccentricity produces an envelope of radiated energy, momentum, and spin, so eccentric mergers span broad domains of remnant properties rela...

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