FAST COALESCENCE OF MASSIVE BLACK HOLE BINARIES FROM MERGERS OF GALACTIC NUCLEI: IMPLICATIONS FOR LOW-FREQUENCY GRAVITATIONAL-WAVE ASTROPHYSICS
文献类型：期刊论文
| 作者 | Preto, Miguel1,2; Berentzen, Ingo1,3; Berczik, Peter1,4,5 ; Spurzem, Rainer1,4,6
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| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
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| 出版日期 | 2011-05-10 |
| 卷号 | 732期号:2 |
| 关键词 | black hole physics galaxies: nuclei gravitational waves |
| 英文摘要 | We investigate a purely stellar dynamical solution to the Final Parsec Problem. Galactic nuclei resulting from major mergers are not spherical, but show some degree of triaxiality. With N-body simulations, we show that equal-mass massive black hole binaries (MBHBs) hosted by them will continuously interact with stars on centrophilic orbits and will thus inspiral-in much less than a Hubble time-down to separations at which gravitational-wave (GW) emission is strong enough to drive them to coalescence. Such coalescences will be important sources of GWs for future space-borne detectors such as the Laser Interferometer Space Antenna (LISA). Based on our results for equal-mass mergers, and given that the hardening rate of unequal-mass binaries is similar, we expect that LISA will see between similar to 10 and similar to few x 10(2) such events every year, depending on the particular massive black hole (MBH) seed model as obtained in recent studies of merger trees of galaxy and MBH co-evolution. Orbital eccentricities in the LISA band will be clearly distinguishable from zero with e greater than or similar to 0.001-0.01. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000293133200008 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7862]  |
| 专题 | 国家天文台_星系宇宙学研究部 |
| 作者单位 | 1.Heidelberg Univ, Astron Rechen Inst, Zentrum Astron, D-69120 Heidelberg, Germany 2.Albert Einstein Inst, Max Planck Inst Gravitat Phys, D-14476 Potsdam, Germany 3.Heidelberg Univ, Zentrum Astron, Inst Theoret Astrophys, D-69120 Heidelberg, Germany 4.Chinese Acad Sci, NAOC, Beijing 100012, Peoples R China 5.NASU, MAO, UA-03680 Kiev, Ukraine 6.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Preto, Miguel,Berentzen, Ingo,Berczik, Peter,et al. FAST COALESCENCE OF MASSIVE BLACK HOLE BINARIES FROM MERGERS OF GALACTIC NUCLEI: IMPLICATIONS FOR LOW-FREQUENCY GRAVITATIONAL-WAVE ASTROPHYSICS[J]. ASTROPHYSICAL JOURNAL LETTERS,2011,732(2). |
| APA | Preto, Miguel,Berentzen, Ingo,Berczik, Peter,&Spurzem, Rainer.(2011).FAST COALESCENCE OF MASSIVE BLACK HOLE BINARIES FROM MERGERS OF GALACTIC NUCLEI: IMPLICATIONS FOR LOW-FREQUENCY GRAVITATIONAL-WAVE ASTROPHYSICS.ASTROPHYSICAL JOURNAL LETTERS,732(2). |
| MLA | Preto, Miguel,et al."FAST COALESCENCE OF MASSIVE BLACK HOLE BINARIES FROM MERGERS OF GALACTIC NUCLEI: IMPLICATIONS FOR LOW-FREQUENCY GRAVITATIONAL-WAVE ASTROPHYSICS".ASTROPHYSICAL JOURNAL LETTERS 732.2(2011). |
入库方式： OAI收割
来源：国家天文台
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