Skip navigation
Skip navigation

Improved upper limits on the stochastic gravitational-wave background from 2009-2010 LIGO and Virgo data

Aasi, J; Abbott, B; Abbott, Robert; Abernathy, M; Accadia, T; Acernese, F; Ackley, K; Adams, C; Adams, T; Addesso, P; Adhikari, Rana; Chow, Jong; Chua, Sheon; McClelland, David; Nguyen, Thanh; Scott, Susan M; Shaddock, Daniel; Slagmolen, Bram; Wade, Andrew; Ward, Robert

Description

Gravitational waves from a variety of sources are predicted to superpose to create a stochastic background. This background is expected to contain unique information from throughout the history of the Universe that is unavailable through standard electromagnetic observations, making its study of fundamental importance to understanding the evolution of the Universe. We carry out a search for the stochastic background with the latest data from the LIGO and Virgo detectors. Consistent with...[Show more]

dc.contributor.authorAasi, J
dc.contributor.authorAbbott, B
dc.contributor.authorAbbott, Robert
dc.contributor.authorAbernathy, M
dc.contributor.authorAccadia, T
dc.contributor.authorAcernese, F
dc.contributor.authorAckley, K
dc.contributor.authorAdams, C
dc.contributor.authorAdams, T
dc.contributor.authorAddesso, P
dc.contributor.authorAdhikari, Rana
dc.contributor.authorChow, Jong
dc.contributor.authorChua, Sheon
dc.contributor.authorMcClelland, David
dc.contributor.authorNguyen, Thanh
dc.contributor.authorScott, Susan M
dc.contributor.authorShaddock, Daniel
dc.contributor.authorSlagmolen, Bram
dc.contributor.authorWade, Andrew
dc.contributor.authorWard, Robert
dc.date.accessioned2015-12-08T22:48:36Z
dc.date.available2015-12-08T22:48:36Z
dc.identifier.issn0031-9007
dc.identifier.urihttp://hdl.handle.net/1885/38403
dc.description.abstractGravitational waves from a variety of sources are predicted to superpose to create a stochastic background. This background is expected to contain unique information from throughout the history of the Universe that is unavailable through standard electromagnetic observations, making its study of fundamental importance to understanding the evolution of the Universe. We carry out a search for the stochastic background with the latest data from the LIGO and Virgo detectors. Consistent with predictions from most stochastic gravitational-wave background models, the data display no evidence of a stochastic gravitational-wave signal. Assuming a gravitational-wave spectrum of ΩGW(f)=Ωα(f/fref)α, we place 95% confidence level upper limits on the energy density of the background in each of four frequency bands spanning 41.5-1726 Hz. In the frequency band of 41.5-169.25 Hz for a spectral index of α=0, we constrain the energy density of the stochastic background to be ΩGW(f)<5.6×10-6. For the 600-1000 Hz band, ΩGW(f)<0.14(f/900Hz)3, a factor of 2.5 lower than the best previously reported upper limits. We find ΩGW(f)<1.8×10-4 using a spectral index of zero for 170-600 Hz and ΩGW(f)<1.0(f/1300Hz)3 for 1000-1726 Hz, bands in which no previous direct limits have been placed. The limits in these four bands are the lowest direct measurements to date on the stochastic background. We discuss the implications of these results in light of the recent claim by the BICEP2 experiment of the possible evidence for inflationary gravitational waves.
dc.publisherAmerican Physical Society
dc.sourcePhysical Review Letters
dc.titleImproved upper limits on the stochastic gravitational-wave background from 2009-2010 LIGO and Virgo data
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume113
dc.date.issued2014
local.identifier.absfor020105 - General Relativity and Gravitational Waves
local.identifier.ariespublicationU9212960xPUB161
local.type.statusPublished Version
local.contributor.affiliationAasi, J, LIGO California Institute of Technology
local.contributor.affiliationAbbott, B, LIGO - California Institute of Technology
local.contributor.affiliationAbbott, Robert, LIGO - California Institute of Technology
local.contributor.affiliationAbernathy, M R, LIGO California Institute of Technology
local.contributor.affiliationAccadia, T, Universite de Savoie
local.contributor.affiliationAcernese, F, INFN
local.contributor.affiliationAckley, K, University of Florida
local.contributor.affiliationAdams, C, LIGO-Livingston Observatory
local.contributor.affiliationAdams, T, Cardiff University
local.contributor.affiliationAddesso, P, Università di Salerno
local.contributor.affiliationAdhikari, Rana, LIGO - California Institute of Technology
local.contributor.affiliationChow, Jong , College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationChua, Sheon, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationMcClelland, David, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationNguyen, Thanh, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationScott, Susan M, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationShaddock, Daniel, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationSlagmolen, Bram, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationWade, Andrew, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationWard, Robert, College of Physical and Mathematical Sciences, ANU
local.bibliographicCitation.startpage1
local.bibliographicCitation.lastpage10
local.identifier.doi10.1103/PhysRevLett.113.231101
local.identifier.absseo970102 - Expanding Knowledge in the Physical Sciences
dc.date.updated2015-12-08T11:07:40Z
local.identifier.scopusID2-s2.0-84918560574
local.identifier.thomsonID000345929600003
CollectionsANU Research Publications

Download

There are no files associated with this item.


Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  19 May 2020/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator