Journal
ASTROPHYSICAL JOURNAL
Volume 679, Issue 2, Pages 1422-1426Publisher
IOP PUBLISHING LTD
DOI: 10.1086/587679
Keywords
black hole physics; gravitational waves; relativity; stars : statistics
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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 vertical bar nu(kick)vertical bar 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 vertical bar nu(kick)vertical bar similar to 441:94 km s(-1), and minimum and maximum final spins a(fin) similar or equal to 0: 3471 and a(fin) = 0.9591, respectively.
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