Periastron advance in black hole binaries
Periastron advance in black hole binaries
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.
141101-[5pp]
Le Tiec, Alexandre
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Mroué, Abdul H.
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Barack, Leor
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Buonanno, Alessandra
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Pfeiffer, Harald P.
b533faf1-143c-4e10-8189-f8dfde1c1fea
Sago, Norichika
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Taracchini, Andrea
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30 September 2011
Le Tiec, Alexandre
5d68182b-445c-454b-9c38-627c1788515a
Mroué, Abdul H.
d6ef68f8-bc9f-4c04-ba10-0d6a466c810a
Barack, Leor
f08e66d4-c2f7-4f2f-91b8-f2c4230d0298
Buonanno, Alessandra
13eb0ffd-b451-4b55-b05a-b63d102260f7
Pfeiffer, Harald P.
b533faf1-143c-4e10-8189-f8dfde1c1fea
Sago, Norichika
50641559-f289-4ffa-810b-fe4ec8c26e26
Taracchini, Andrea
009bebe5-e377-4ea5-bf4e-0a246fe76afb
Le Tiec, Alexandre, Mroué, Abdul H., Barack, Leor, Buonanno, Alessandra, Pfeiffer, Harald P., Sago, Norichika and Taracchini, Andrea
(2011)
Periastron advance in black hole binaries.
Physical Review Letters, 82 (14), .
(doi:10.1103/PhysRevLett.107.141101).
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.
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Published date: 30 September 2011
Organisations:
Applied Mathematics
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Local EPrints ID: 202359
URI: http://eprints.soton.ac.uk/id/eprint/202359
PURE UUID: 34ebb422-de19-45ad-9dfa-f9c7c1ec58c2
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Date deposited: 07 Nov 2011 10:18
Last modified: 15 Mar 2024 03:21
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Contributors
Author:
Alexandre Le Tiec
Author:
Abdul H. Mroué
Author:
Alessandra Buonanno
Author:
Harald P. Pfeiffer
Author:
Norichika Sago
Author:
Andrea Taracchini
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