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General Relativity and Quantum Cosmology

arXiv:0708.3999 (gr-qc)
[Submitted on 29 Aug 2007 (v1), last revised 23 Feb 2008 (this version, v2)]

Title:Spin Diagrams for Equal-Mass Black-Hole Binaries with Aligned Spins

Authors:Luciano Rezzolla, Ernst Nils Dorband, Christian Reisswig, Peter Diener, Denis Pollney, Erik Schnetter, Bela Szilagyi
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Abstract: Binary black-hole systems with spins aligned with the orbital angular momentum are of special interest as they may be the preferred end-state of the inspiral of generic supermassive binary black-hole systems. In view of this, we have computed the inspiral and merger of a large set of binary systems of equal-mass black holes with spins aligned with the orbital angular momentum but otherwise arbitrary. By least-square fitting the results of these simulations we have constructed two "spin diagrams" which provide straightforward information about the recoil velocity |v_kick| and the final black-hole spin a_fin in terms of the dimensionless spins a_1 and a_2 of the two initial black holes. Overall they suggest a maximum recoil velocity of |v_kick|=441.94 km/s, and minimum and maximum final spins a_fin=0.3471 and a_fin=0.9591, respectively.
Comments: 4 pages, 3 figs; small changes matching published version
Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics (astro-ph)
Cite as: arXiv:0708.3999 [gr-qc]
  (or arXiv:0708.3999v2 [gr-qc] for this version)
  https://doi.org/10.48550/arXiv.0708.3999
Journal reference: Astrophys.J. 679:1422-1426,2008
Related DOI: https://doi.org/10.1086/587679

Submission history

From: Ernst Nils Dorband [view email]
[v1] Wed, 29 Aug 2007 17:33:55 UTC (127 KB)
[v2] Sat, 23 Feb 2008 17:53:07 UTC (44 KB)
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