Effective-one-body model for black-hole binaries with generic mass ratios and spins

被引：364

作者：

Taracchini, Andrea ^{[1
,2
]}

Buonanno, Alessandra ^{[1
,2
]}

Pan, Yi ^{[1
,2
]}

Hinderer, Tanja ^{[1
,2
]}

Boyle, Michael ^{[3
]}

Hemberger, Daniel A. ^{[3
]}

Kidder, Lawrence E. ^{[3
]}

Lovelace, Geoffrey ^{[4
,5
]}

Mroue, Abdul H. ^{[6
]}

Pfeiffer, Harald P. ^{[6
,7
]}

Scheel, Mark A. ^{[4
]}

Szilagyi, Bela ^{[4
]}

Taylor, Nicholas W. ^{[4
]}

Zenginoglu, Anil ^{[4
]}

机构：

[1] Univ Maryland, Dept Phys, Maryland Ctr Fundamental Phys, College Pk, MD 20742 USA

[2] Univ Maryland, Joint Space Sci Inst, College Pk, MD 20742 USA

[3] Cornell Univ, Ctr Radiophys & Space Res, Ithaca, NY 14853 USA

[4] CALTECH, Pasadena, CA 91125 USA

[5] Calif State Univ Fullerton, Gravitat Wave Phys & Astron Ctr, Fullerton, CA 92831 USA

[6] Univ Toronto, Canadian Inst Theoret Astrophys, Toronto, ON M5S 3H8, Canada

[7] Canadian Inst Adv Res, Toronto, ON M5G 1Z8, Canada

来源：

PHYSICAL REVIEW D | 2014年 / 89卷 / 06期

基金：

美国国家科学基金会; 加拿大自然科学与工程研究理事会; 加拿大创新基金会;

关键词：

D O I：

10.1103/PhysRevD.89.061502

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Gravitational waves emitted by black-hole binary systems have the highest signal-to-noise ratio in LIGO and Virgo detectors when black-hole spins are aligned with the orbital angular momentum and extremal. For such systems, we extend the effective-one-body inspiral-merger-ringdown waveforms to generic mass ratios and spins calibrating them to 38 numerical-relativity nonprecessing waveforms produced by the SXS Collaboration. The numerical-relativity simulations span mass ratios from 1 to 8, spin magnitudes up to 98% of extremality, and last for 40 to 60 gravitational-wave cycles. When the total mass of the binary is between 20 and 200M(circle dot), the effective-one-body nonprecessing (dominant mode) waveforms have overlap above 99% (using the advanced-LIGO design noise spectral density) with all of the 38 nonprecessing numerical waveforms, when maximizing only on initial phase and time. This implies a negligible loss in event rate due to modeling. We also show that-without further calibration-the precessing effective-onebody (dominant mode) waveforms have overlap above 97% with two very long, strongly precessing numerical-relativity waveforms, when maximizing only on the initial phase and time.

引用

页数：6

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