Modeling gravitational recoil from precessing highly spinning unequal-mass black-hole binaries

Carlos O. Lousto and Yosef Zlochower
Phys. Rev. D 79, 064018 – Published 18 March 2009

Abstract

We measure the gravitational recoil for unequal-mass black-hole binary mergers, with the larger black hole having intrinsic spin a/mH=0.8, and the smaller black hole nonspinning. We choose our configurations such that, initially, the spins lie on the orbital plane. The spin and orbital plane precess significantly (we introduce a technique to identify the orbital plane at merger), and we find that the out-of plane recoil (i.e. the recoil perpendicular to the orbital plane around merger) varies as η2/(1+q), in agreement with our previous prediction, based on the post-Newtonian scaling.

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  • Received 1 May 2008

DOI:https://doi.org/10.1103/PhysRevD.79.064018

©2009 American Physical Society

Authors & Affiliations

Carlos O. Lousto and Yosef Zlochower

  • Center for Computational Relativity and Gravitation and School of Mathematical Sciences, Rochester Institute of Technology, 78 Lomb Memorial Drive, Rochester, New York 14623, USA

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Issue

Vol. 79, Iss. 6 — 15 March 2009

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