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https://hdl.handle.net/2440/105232
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Type: | Journal article |
Title: | Upper limits on the stochastic gravitational-wave background from Advanced LIGO's first observing run |
Author: | Abbott, B. Abbott, R. Abbott, T. Abernathy, M. Acernese, F. Ackley, K. Adams, C. Adams, T. Addesso, P. Adhikari, R. Adya, V. Affeldt, C. Agathos, M. Agatsuma, K. Aggarwal, N. Aguiar, O. Aiello, L. Ain, A. Ajith, P. Allen, B. et al. |
Citation: | Physical Review Letters, 2017; 118(12):121101-1-121101-12 |
Publisher: | American Physical Society |
Issue Date: | 2017 |
ISSN: | 0031-9007 1079-7114 |
Statement of Responsibility: | B. P. Abbott … R. Abbott … Won Kim … Jesper Munch … David J. Ottaway … Peter J. Veitch … et al. (LIGO Scientific Collaboration and Virgo Collaboration) |
Abstract: | A wide variety of astrophysical and cosmological sources are expected to contribute to a stochastic gravitational-wave background. Following the observations of GW150914 and GW151226, the rate and mass of coalescing binary black holes appear to be greater than many previous expectations. As a result, the stochastic background from unresolved compact binary coalescences is expected to be particularly loud. We perform a search for the isotropic stochastic gravitational-wave background using data from Advanced Laser Interferometer Gravitational Wave Observatory's (aLIGO) first observing run. The data display no evidence of a stochastic gravitational-wave signal. We constrain the dimensionless energy density of gravitational waves to be Ω_{0}<1.7×10^{-7} with 95% confidence, assuming a flat energy density spectrum in the most sensitive part of the LIGO band (20-86 Hz). This is a factor of ∼33 times more sensitive than previous measurements. We also constrain arbitrary power-law spectra. Finally, we investigate the implications of this search for the background of binary black holes using an astrophysical model for the background. |
Keywords: | LIGO Scientific Collaboration and Virgo Collaboration |
Rights: | © 2017 American Physical Society |
DOI: | 10.1103/PhysRevLett.118.121101 |
Published version: | http://dx.doi.org/10.1103/physrevlett.118.121101 |
Appears in Collections: | Aurora harvest 3 Physics publications |
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