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Gravitational waves from binary supermassive black holes missing in pulsar observations
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; Bhat, N. D. R.2; Burke-Spolaor, S.7; Dai, S.1,8; Keith, M. J.9; Oslowski, S.10,11; Reardon, D. J.5; van Straten, W.3; Toomey, L.1; Wang, J. -B.12; Wen, L.13; Wyithe, J. S. B.14; Zhu, X. -J.13
Source PublicationSCIENCE
Contribution Rank12
AbstractGravitational 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 HeadingsScience & Technology
Indexed BySCI
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000361707000043
Citation statistics
Cited Times:270[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.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
11.Max Planck Inst Radioastron, D-53121 Bonn, Germany
12.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China
13.Univ Western Australia, Sch Phys, Crawley, WA 6009, Australia
14.Univ Melbourne, Sch Phys, Parkville, Vic 3010, Australia
Recommended Citation
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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