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  Understanding the "anti-kick" in the merger of binary black holes

Rezzolla, L., Macedo, R. P., & Jaramillo, J.-L. (2010). Understanding the "anti-kick" in the merger of binary black holes. Physical Review Letters, 104(22): 221101. doi:10.1103/PhysRevLett.104.221101.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0012-9DF5-F Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0012-9DF8-9
Genre: Journal Article

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 Creators:
Rezzolla, Luciano1, Author              
Macedo, Rodrigo P., Author
Jaramillo, Jose-Luis1, Author              
Affiliations:
1Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24013              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc, Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE,High Energy Physics - Theory, hep-th
 Abstract: The generation of a large recoil velocity from the inspiral and merger of binary black holes represents one of the most exciting results of numerical-relativity calculations. While many aspects of this process have been investigated and explained, the "anti-kick", namely the sudden deceleration after the merger, has not yet found a simple explanation. We show that the anti-kick can be easily understood in terms of the radiation from a deformed black hole where the intrinsically anisotropic curvature distribution on the horizon determines the direction and intensity of the recoil. Our analysis is focussed on the properties of Robinson-Trautman spacetimes and allows us to measure both the energies and momenta radiated in a gauge-invariant manner. At the same time, this simpler setup provides all the qualitative but also quantitative features of inspiralling black hole binaries, thus opening the way to a deeper understanding of the nonlinear dynamics of black-hole spacetimes.

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 Dates: 2010-03-032010
 Publication Status: Published in print
 Pages: 4 pages
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1003.0873
DOI: 10.1103/PhysRevLett.104.221101
 Degree: -

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Title: Physical Review Letters
  Other : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y., etc. : American Physical Society.
Pages: - Volume / Issue: 104 (22) Sequence Number: 221101 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: /journals/resource/954925433406