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Final spin of a coalescing black-hole binary: An effective-one-body approach
Authors:
Damour, Thibault [Institut des Hautes Etudes Scientifiques, 35 route de Chartres, 91440 Bures-sur-Yvette (France)]
Nagar, Alessandro [Dipartimento di Fisica, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin (Italy) and INFN, sezione di Torino, Via Pietro Giuria 1, Turin (Italy)]
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| Abstract: We update the analytical estimate of the final spin of a coalescing black-hole binary derived within the effective-one-body (EOB) approach. We consider unequal-mass nonspinning black-hole binaries. It is found that a more complete account of relevant physical effects (higher post-Newtonian accuracy, ringdown losses) allows the analytical EOB estimate to 'converge towards' the recently obtained numerical results within 2%. This agreement illustrates the ability of the EOB approach to capture the essential physics of coalescing black-hole binaries. Our analytical approach allows one to estimate the final spin of the black hole formed by coalescing binaries in a mass range [ν=m 1m 2/(m 1+m 2) 2<0.16] which is not presently covered by numerical simulations. |
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| Publication Date: |
15 Aug 2007
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| Resource Type: |
Journal Article
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| Resource Relation: |
Journal: Physical Review. D, Particles Fields; Journal Volume: 76; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevD.76.044003; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
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| Country of Publication: |
United States
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| Language: |
English
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Keywords relating to this report: 
