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Journal Article

Periastron Advance in Black-Hole Binaries

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Buonanno,  A.
Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;
University of Maryland;

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1106.3278.pdf
(Preprint), 195KB

PhysRevLett.107.141101.pdf
(Any fulltext), 215KB

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Citation

Tiec, A. L., Mroué, A. H., Barack, L., Buonanno, A., Pfeiffer, H. P., Sago, N., et al. (2011). Periastron Advance in Black-Hole Binaries. Physical Review Letters, 107(14): 141101. doi:10.1103/PhysRevLett.107.141101.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0023-F7B6-D
Abstract
The general relativistic (Mercury-type) periastron advance is calculated here for the first time with exquisite precision in full general relativity. We use accurate numerical relativity simulations of spinless black hole binaries with mass ratios 1/8 < m1/m2 < 1 and compare with the predictions of several analytic approximation schemes. We find the effective-one-body model to be remarkably accurate, and, surprisingly, so also the predictions of self-force theory [replacing m1/m2 --> m1m2/(m1+m2)^2]. Our results can inform a universal analytic model of the two-body dynamics, crucial for ongoing and future gravitational-wave searches.