Quasi-circular orbits of conformal thin-sandwich puncture binary black holes

Details Quasi-circular orbits of conformal thin-sandwich puncture binary black holes Quasi-circular orbits of conformal thin-sandwich puncture binary black holes

2005-05-23

arxiv.org/abs/gr-qc/0505120v2

Phys.Rev. D72 (2005) 044025

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

7 pages, 1 figure. Added discussion of the Komar mass, and slight modifications for published version

Scientific paper

10.1103/PhysRevD.72.044025

I construct initial data for equal-mass irrotational binary black holes using the conformal thin-sandwich puncture (CTSP) approach. I locate quasi-circular orbits using the effective-potential method, and estimate the location of the innermost stable circular orbit (ISCO). The ISCO prediction is consistent with results for conformal thin-sandwich data produced using excision techniques. These results also show that the ISCOs predicted by the effective-potential and ADM-Komar mass-comparison methods agree for conformal thin-sandwich data, just as they did for Bowen-York data.

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