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Gravitational waves from binary supermassive black holes missing in pulsar observations
文献类型：期刊论文
| 作者 | Shannon, R. M.1,2; Ravi, V.3; Lentati, L. T.4; Lasky, P. D.5; Hobbs, G.1; Kerr, M.1; Manchester, R. N.1; Coles, W. A.6; Levin, Y.5; Bailes, M.3 |
| 刊名 | SCIENCE
 |
| 出版日期 | 2015-09-25 |
| 卷号 | 349期号:6255页码:1522-1525 |
| 英文摘要 | Gravitational waves are expected to be radiated by supermassive black hole binaries formed during galaxy mergers. A stochastic superposition of gravitational waves from all such binary systems would modulate the arrival times of pulses from radio pulsars. Using observations of millisecond pulsars obtained with the Parkes radio telescope, we constrained the characteristic amplitude of this background, A(c,yr), to be <1.0 x 10(-15) with 95% confidence. This limit excludes predicted ranges for A(c,yr) from current models with 91 to 99.7% probability. We conclude that binary evolution is either stalled or dramatically accelerated by galactic-center environments and that higher-cadence and shorter-wavelength observations would be more sensitive to gravitational waves. |
| WOS标题词 | Science & Technology |
| 类目[WOS] | Multidisciplinary Sciences |
| 研究领域[WOS] | Science & Technology - Other Topics |
| 关键词[WOS] | ACTIVE GALACTIC NUCLEI ; TIMING ARRAYS ; EVOLUTION ; LIMITS ; ACCRETION ; GALAXIES ; MERGERS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000361707000043 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/888]  |
| 专题 | 脉冲星研究团组 新疆天文台_射电天文研究室 |
| 作者单位 | 1.Australia Telescope Natl Facil, Commonwealth Sci & Ind Res Org CSIRO Astron & Spa, Epping, NSW 1710, Australia 2.Curtin Univ, Int Ctr Radio Astron Res, Bentley, WA 6102, Australia 3.Swinburne Univ Technol, Ctr Astrophys & Supercomp, Hawthorn, Vic 3122, Australia 4.Univ Cambridge, Cavendish Lab, Astrophys Grp, Cambridge CB3 0HE, England 5.Monash Univ, Monash Ctr Astrophys, Sch Phys & Astron, Clayton, Vic 3800, Australia 6.Univ Calif San Diego, Dept Elect & Comp Engn, La Jolla, CA 92093 USA 7.Natl Radio Astron Observ, Array Operat Ctr, Socorro, NM 87801 USA 8.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China 9.Univ Manchester, Ctr Astrophys, Jodrell Bank, Manchester M13 9PL, Lancs, England 10.Univ Bielefeld, Dept Phys, D-33615 Bielefeld, Germany |
| 推荐引用方式 GB/T 7714 | Shannon, R. M.,Ravi, V.,Lentati, L. T.,et al. Gravitational waves from binary supermassive black holes missing in pulsar observations[J]. SCIENCE,2015,349(6255):1522-1525. |
| APA | Shannon, R. M..,Ravi, V..,Lentati, L. T..,Lasky, P. D..,Hobbs, G..,...&Zhu, X. -J..(2015).Gravitational waves from binary supermassive black holes missing in pulsar observations.SCIENCE,349(6255),1522-1525. |
| MLA | Shannon, R. M.,et al."Gravitational waves from binary supermassive black holes missing in pulsar observations".SCIENCE 349.6255(2015):1522-1525. |
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来源：新疆天文台
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