Spin Flips and Precession in Black-Hole-Binary Mergers

@article{Campanelli2007SpinFA,
  title={Spin Flips and Precession in Black-Hole-Binary Mergers},
  author={Manuela Campanelli and Carlos O. Lousto and Yosef Zlochower and Badri Krishnan and David Merritt},
  journal={Physical Review D},
  year={2007},
  volume={75},
  pages={064030}
}
We use the ‘moving puncture’ approach to perform fully non-linear evolutions of spinning quasicircular black-hole binaries with individual spins unaligned with the orbital angular momentum. We evolve configurations with the individual spins (parallel and equal in magnitude) pointing in the orbital plane and 45-degrees above the orbital plane. We introduce a technique to measure the spin direction and track the precession of the spin during the merger, as well as measure the spin flip in the… 
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