Binaries of massive black holes in rotating clusters: dynamics, gravitational waves, detection and the role of eccentricity
文献类型：期刊论文
| 作者 | Amaro-Seoane, P.1,7; Eichhorn, C.2,3; Porter, E. K.4; Spurzem, R.3,5,6
|
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2010-02-01 |
| 卷号 | 401期号:4页码:2268-2284 |
| 关键词 | black hole physics gravitational waves stellar dynamics globular clusters: general |
| 英文摘要 | The dynamical evolution of binaries of intermediate-mass black holes (IMBHs; massive black holes with a mass ranging between 10(2) and 10(4) M(circle dot)) in stellar clusters has recently received an increasing amount of attention. This is at least partially due to the fact that if the binary is hard enough to evolve to the phase at which it will start emitting gravitational waves (GWs) efficiently, there is a good probability that it will be detectable by future space-borne detectors like Laser Interferometer Space Antenna. We study this evolution in the presence of rotation in the cluster by carrying out a series of simulations of an equal-mass binary of IMBHs embedded in a stellar distribution with different rotational parameters. The survey indicates that eccentricities and inclinations are primarily determined by the initial conditions of the IMBHs and the influence of dynamical friction, even though they are finally perturbed by the scattering of field stars. In particular, the eccentricity is strongly connected to the initial IMBHs velocities, and values of similar to 0.7 up to 0.9 are reached for low initial velocities, while almost circular orbits result if the initial velocities are increased. Evidence suggests a dependency of the eccentricity on the rotation parameter. We found only weak changes in the inclination, with slight variations of the orientation of the angular momentum vector of the binary. Counter-rotation simulations yield remarkably different results in eccentricity. A Monte Carlo study indicates that these sources will be detectable by a detector such as Laser Interferometer Space Antenna (LISA) with median signal-to-noise ratios (SNR) of between 10 and 20 over a three-year period, although some events had SNR of 300 or greater. Furthermore, one should also be able to estimate the chirp mass with median fractional errors of 10(-4), reduced mass of the order of 10(-3) and luminosity distance of the order of 10(-1). Finally, these sources will have a median angular resolution in the LISA detector of about 3 deg(2), putting events firmly in the field of view of future electromagnetic detectors such as Large Synoptic Survey Telescope. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000273687800010 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7636]  |
| 专题 | 国家天文台_星系宇宙学研究部 |
| 作者单位 | 1.Albert Einstein Inst, Max Planck Inst Gravitat Phys, D-14476 Potsdam, Germany 2.Univ Stuttgart, Inst Raumfahrtsyst, D-70550 Stuttgart, Germany 3.Univ Heidelberg, Zentrum Astron, Astron Rech Inst, D-69120 Heidelberg, Germany 4.Univ Paris 07, Lab APC, UMR 7164, F-75205 Paris 13, France 5.Chinese Acad Sci, Natl Astron Observ China, Beijing 100012, Peoples R China 6.Peking Univ, Kavli Inst Astron & Astrophys, Beijing, Peoples R China 7.CSIC IEEC, Inst Ciencies Espai, ES-08193 Barcelona, Spain |
| 推荐引用方式 GB/T 7714 | Amaro-Seoane, P.,Eichhorn, C.,Porter, E. K.,et al. Binaries of massive black holes in rotating clusters: dynamics, gravitational waves, detection and the role of eccentricity[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2010,401(4):2268-2284. |
| APA | Amaro-Seoane, P.,Eichhorn, C.,Porter, E. K.,&Spurzem, R..(2010).Binaries of massive black holes in rotating clusters: dynamics, gravitational waves, detection and the role of eccentricity.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,401(4),2268-2284. |
| MLA | Amaro-Seoane, P.,et al."Binaries of massive black holes in rotating clusters: dynamics, gravitational waves, detection and the role of eccentricity".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 401.4(2010):2268-2284. |
入库方式： OAI收割
来源：国家天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。