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Journal Article

Recoil velocities from equal-mass binary-black-hole mergers

MPS-Authors
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Koppitz,  Michael
Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Pollney,  Denis
Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons20669

Reisswig,  Christian
Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Rezzolla,  Luciano
Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

Thornburg,  Jonathan
Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

Schnetter,  Erik
Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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prl99_041102.pdf
(Publisher version), 221KB

0701163v2.pdf
(Preprint), 136KB

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Citation

Koppitz, M., Pollney, D., Reisswig, C., Rezzolla, L., Thornburg, J., Diener, P., et al. (2007). Recoil velocities from equal-mass binary-black-hole mergers. Physical Review Letters, 99(4): 041102. doi:http://link.aps.org/abstract/PRL/v99/e041102.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-4803-3
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 nonspinning binaries with unequal masses have pointed out that kick velocities ~175 km/s can be reached for a mass ratio ~=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 ~440 km/s for black holes having unequal spins that are antialigned and parallel to the orbital angular momentum