Golden binary gravitational-wave sources: Robust probes of strong-field gravity

被引:48
|
作者
Hughes, SA
Menou, K
机构
[1] MIT, Dept Phys, Cambridge, MA 02139 USA
[2] MIT, Ctr Space Res, Cambridge, MA 02139 USA
[3] Columbia Univ, Dept Astron, New York, NY 10027 USA
来源
ASTROPHYSICAL JOURNAL | 2005年 / 623卷 / 02期
关键词
black hole physics; galaxies : active; galaxies : nuclei; gravitation; quasars : general; relativity;
D O I
10.1086/428826
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Space-borne gravitational-wave interferometers such as LISA will detect the gravitational wave (GW) signal from the inspiral, plunge, and ringdown phases of massive black hole binary mergers at cosmological distances. From the inspiral waves, we will be able to measure the masses of the binaries' members; from the ringdown waves, we will be able to measure the mass of the final merged remnant. A subset of detected events allow the identification of both the inspiral and the ringdown waveforms in a given source and thus allow a measurement of the total mass-energy lost to GWs over the coalescence, M-GW. We define "golden" binary mergers to be those with measurement errors likely to be small enough for a physically useful determination of MGW. A detailed sensitivity study, combined with simple black hole population models, suggests that a few golden binary mergers may be detected during a 3 yr LISA mission lifetime. Any such mass deficit measurement would constitute a robust and valuable observational test of strong-field relativistic gravity. An extension of this concept to include spin measurements may allow a direct empirical test of the black hole area theorem.
引用
收藏
页码:689 / 699
页数:11
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