Triplets of supermassive black holes: astrophysics, gravitational waves and detection
文献类型：期刊论文
| 作者 | Amaro-Seoane, Pau1,2; Sesana, Alberto3; Hoffman, Loren4; Benacquista, Matthew5; Eichhorn, Christoph6,7; Makino, Junichiro8; Spurzem, Rainer7,9,10
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2010-03-01 |
| 卷号 | 402期号:4页码:2308-2320 |
| 关键词 | gravitational waves pulsars: general cosmology: theory |
| 英文摘要 | Supermassive black holes (SMBHs) found in the centres of many galaxies are understood to play a fundamental, active role in the cosmological structure formation process. In hierarchical formation scenarios, SMBHs are expected to form binaries following the merger of their host galaxies. If these binaries do not coalesce before the merger with a third galaxy, the formation of a black hole triple system is possible. Numerical simulations of the dynamics of triples within galaxy cores exhibit phases of very high eccentricity (as high as e similar to 0.99). During these phases, intense bursts of gravitational radiation can be emitted at orbital periapsis, which produces a gravitational wave signal at frequencies substantially higher than the orbital frequency. The likelihood of detection of these bursts with pulsar timing and the Laser Interferometer Space Antenna (LISA) is estimated using several population models of SMBHs with masses greater than or similar to 10(7) M(circle dot). Assuming that 10 per cent or more of binaries are in triple systems, we find that up to a few dozen of these bursts will produce residuals > 1 ns, within the sensitivity range of forthcoming pulsar timing arrays. However, most of such bursts will be washed out in the underlying confusion noise produced by all the other 'standard' SMBH binaries emitting in the same frequency window. A detailed data analysis study would be required to assess resolvability of such sources. Implementing a basic resolvability criterion, we find that the chance of catching a resolvable burst at a 1 ns precision level is 2-50 per cent, depending on the adopted SMBH evolution model. On the other hand, the probability of detecting bursts produced by massive binaries (masses greater than or similar to 10(7) M(circle dot)) with LISA is negligible. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000275107400013 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/8081]  |
| 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.CSIC IEEC, Inst Ciencies Espai, ES-08193 Barcelona, Spain 3.Penn State Univ, Davey Lab 104, University Pk, PA 16802 USA 4.Northwestern Univ, Dearborn Observ, Evanston, IL 60208 USA 5.Univ Texas Brownsville, Ctr Gravitat Wave Astron, Brownsville, TX 78520 USA 6.Univ Stuttgart, Inst Raumfahrtsyst, D-70550 Stuttgart, Germany 7.Chinese Acad Sci, Natl Astron Observ China, Beijing 100012, Peoples R China 8.Natl Astron Observ, Div Theoret Astron, Tokyo 1818588, Japan 9.Peking Univ, Kavli Inst Astron & Astrophys, Beijing, Peoples R China 10.Univ Heidelberg, Zentrum Astron, Astron Rechen Inst, D-69120 Heidelberg, Germany |
| 推荐引用方式 GB/T 7714 | Amaro-Seoane, Pau,Sesana, Alberto,Hoffman, Loren,et al. Triplets of supermassive black holes: astrophysics, gravitational waves and detection[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2010,402(4):2308-2320. |
| APA | Amaro-Seoane, Pau.,Sesana, Alberto.,Hoffman, Loren.,Benacquista, Matthew.,Eichhorn, Christoph.,...&Spurzem, Rainer.(2010).Triplets of supermassive black holes: astrophysics, gravitational waves and detection.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,402(4),2308-2320. |
| MLA | Amaro-Seoane, Pau,et al."Triplets of supermassive black holes: astrophysics, gravitational waves and detection".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 402.4(2010):2308-2320. |
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