We measure the gravitational recoil for unequal-mass-black-hole-binary mergers, with the larger BH having spin a/mH = 0.8, and the smaller BH non-spinning. We choose our configurations such that, initially, the spins lie on the orbital plane. The spin and orbital plane precess significantly, 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.

Publication Date



This is the pre-print of an article published by the American Physical Society. The final, published version is located here: https://doi.org/10.1103/PhysRevD.79.064018

©2009 American Physical Society

Archived in arXiv:0805.0159 v4 Jan 1, 2009.

Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works in February 2014.

Document Type


Department, Program, or Center

School of Physics and Astronomy (COS)


RIT – Main Campus