# Superkicks in hyperbolic encounters of binary black holes.

@article{Healy2009SuperkicksIH, title={Superkicks in hyperbolic encounters of binary black holes.}, author={James Healy and Frank Herrmann and Ian Hinder and Deirdre M. Shoemaker and Pablo Laguna and Richard A. Matzner}, journal={Physical review letters}, year={2009}, volume={102 4}, pages={ 041101 } }

Generic inspirals and mergers of binary black holes produce beamed emission of gravitational radiation that can lead to a gravitational recoil or kick of the final black hole. The kick velocity depends on the mass ratio and spins of the binary as well as on the dynamics of the binary configuration. Studies have focused so far on the most astrophysically relevant configuration of quasicircular inspirals, for which kicks as large as approximately 3300 km s;(-1) have been found. We present the…

## 58 Citations

Hypercompact Stellar Systems Around Recoiling Supermassive Black Holes

- Physics
- 2008

A supermassive black hole ejected from the center of a galaxy by gravitational-wave recoil carries a retinue of bound stars—a “hypercompact stellar system” (HCSS). The numbers and properties of HCSSs…

Gravitational-Wave Recoil from the Ringdown Phase of Coalescing Black Hole Binaries

- Physics
- 2009

The gravitational recoil or ‘kick’ of a black hole formed from the merger of two orbiting black holes, and caused by the anisotropic emission of gravitational radiation, is an astrophysically…

Tracking Black Hole Kicks from Gravitational-Wave Observations.

- PhysicsPhysical review letters
- 2018

This Letter makes use of the rich information encoded in the higher-order modes of the gravitational wave emission to infer the component of the kick along the line of sight (or radial kick) by performing parameter inference on simulated signals given by numerical relativity waveforms for nonspinning binaries using numerical relativity templates of aligned-spin (nonprecessing) binary black holes.

Amplification of superkicks in black-hole binaries through orbital eccentricity

- PhysicsPhysical Review D
- 2020

We present new numerical-relativity simulations of eccentric merging black holes with initially antiparallel spins lying in the orbital plane (the so-called superkick configuration). Binary…

Understanding the "antikick" in the merger of binary black holes.

- PhysicsPhysical review letters
- 2010

It is shown that the antikick can be understood in terms of the radiation from a deformed black hole where the anisotropic curvature distribution on the horizon correlates with the direction and intensity of the recoil.

Recoiling Black Holes: Electromagnetic Signatures, Candidates, and Astrophysical Implications

- Physics
- 2012

Supermassive black holes (SMBHs) may not always reside right at the centers of their host galaxies. This is a prediction of numerical relativity simulations, which imply that the newly formed single…

CIRCUMBINARY MAGNETOHYDRODYNAMIC ACCRETION INTO INSPIRALING BINARY BLACK HOLES

- Physics
- 2012

We have simulated the magnetohydrodynamic evolution of a circumbinary disk surrounding an equal-mass binary comprising two non-spinning black holes during the period in which the disk inflow time is…

Momentum flow in black-hole binaries. II. Numerical simulations of equal-mass, head-on mergers with antiparallel spins

- Physics
- 2010

Research on extracting science from binary-black-hole (BBH) simulations has often adopted a “scattering matrix” perspective: given the binary’s initial parameters, what are the final hole’s…

Momentum Flow in Black Hole Binaries. I. Post-Newtonian Analysis of the Inspiral and Spin-Induced Bobbing

- Physics
- 2009

A brief overview is presented of a new Caltech/Cornell research program that is exploring the nonlinear dynamics of curved spacetime in binary black-hole collisions and mergers, and of an initial…

Remnant masses, spins and recoils from the merger of generic black hole binaries

- Physics
- 2009

We obtain empirical formulae for the final remnant black hole mass, spin, and recoil velocity from merging black hole binaries (BHBs) with arbitrary mass ratios and spins. Our formulae are based on…

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