Periastron advance in black hole binaries
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), 141101-[5pp]. (doi:10.1103/PhysRevLett.107.141101)
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Description/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.
| Item Type: | Article |
|---|---|
| ISSN: | 0031-9007 (print) 1079-7114 (electronic) |
| Subjects: | Q Science > QA Mathematics Q Science > QB Astronomy |
| Divisions: | Faculty of Social and Human Sciences > Mathematics > Applied Mathematics |
| ePrint ID: | 202359 |
| URI: | http://eprints.soton.ac.uk/id/eprint/202359 |
| Deposited On: | 07 Nov 2011 10:18 |
| Last Modified: | 07 Nov 2011 10:18 |
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