Upper Limits on the Stochastic Gravitational-Wave Background from Advanced LIGO's First Observing Run

Medientyp: Sonstige Veröffentlichung; E-Artikel

Titel: Upper Limits on the Stochastic Gravitational-Wave Background from Advanced LIGO's First Observing Run

Beteiligte: Abbott, B.P. [Verfasser:in]; Abbott, R. [Verfasser:in]; Abbott, T.D. [Verfasser:in]; Abernathy, M.R. [Verfasser:in]; Acernese, F. [Verfasser:in]; Ackley, K. [Verfasser:in]; Adams, C. [Verfasser:in]; Adams, T. [Verfasser:in]; Addesso, P. [Verfasser:in]; Adhikari, R.X. [Verfasser:in]; Adya, V.B. [Verfasser:in]; Affeldt, C. [Verfasser:in]; Agathos, M. [Verfasser:in]; Agatsuma, K. [Verfasser:in]; Aggarwal, N. [Verfasser:in]; Aguiar, O.D. [Verfasser:in]; Aiello, L. [Verfasser:in]; Ain, A. [Verfasser:in]; Ajith, P. [Verfasser:in]; Allen, B. [Verfasser:in]; Allocca, A. [Verfasser:in]; Altin, P.A. [Verfasser:in]; Ananyeva, A. [Verfasser:in]; Anderson, S.B. [Verfasser:in]; [...]

Erschienen: College Park, MD : American Physical Society, 2017

Ausgabe: published Version

Sprache: Englisch

DOI: https://doi.org/10.15488/12011; https://doi.org/10.1103/PhysRevLett.118.121101

ISSN: 0031-9007

Schlagwörter: Gravity waves ; Energy density spectrum ; Black holes ; Astrophysics ; Laser interferometer gravitational-wave observatories ; Stars ; Upper limits ; Stochastic systems ; Interferometers ; Data display ; Flocculation ; Energy density ; Gravitational effects ; Physical Review ; Gravitational-wave signals ; Laser interferometry

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Beschreibung: 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 Ω0<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. © 2017 American Physical Society.

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Upper Limits on the Stochastic Gravitational-Wave Background from Advanced LIGO's First Observing Run - [published Version]

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