Phys. Rev. D 74, 061503(R) (2006) [4 pages]

Eccentricity content of binary black hole initial data

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Emanuele Berti^*, Sai Iyer^†, and Clifford M. Will^‡
McDonnell Center for the Space Sciences, Department of Physics, Washington University, St. Louis, Missouri 63130, USA

Received 19 July 2006; published 22 September 2006

Using a post-Newtonian diagnostic tool developed by Mora and Will, we examine numerically generated quasiequilibrium initial data sets that have been used in recently successful numerical evolutions of binary black holes through plunge, merger and ringdown. We show that a small but significant orbital eccentricity is required to match post-Newtonian and quasiequilibrium calculations. If this proves to be a real eccentricity, it could affect the fine details of the subsequent numerical evolutions and the predicted gravitational waveforms.

URL:

http://link.aps.org/doi/10.1103/PhysRevD.74.061503

DOI:

10.1103/PhysRevD.74.061503

PACS:

04.25.Nx, 04.25.Dm, 04.70.−s

^*Electronic address: berti@wugrav.wustl.edu

^†Electronic address: sai@physics.wustl.edu

^‡Electronic address: cmw@wuphys.wustl.edu

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Phys. Rev. D 74, 061503(R) (2006) [4 pages]

Eccentricity content of binary black hole initial data