Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/114235
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dc.contributor.authorAbbott, B.en
dc.contributor.authorAbbott, R.en
dc.contributor.authorAbbott, T.en
dc.contributor.authorAcernese, F.en
dc.contributor.authorAckley, K.en
dc.contributor.authorAdams, C.en
dc.contributor.authorAdams, T.en
dc.contributor.authorAddesso, P.en
dc.contributor.authorAdhikari, R.en
dc.contributor.authorAdya, V.en
dc.contributor.authorAffeldt, C.en
dc.contributor.authorAfrough, M.en
dc.contributor.authorAgarwal, B.en
dc.contributor.authorAgathos, M.en
dc.contributor.authorAgatsuma, K.en
dc.contributor.authorAggarwal, N.en
dc.contributor.authorAguiar, O.en
dc.contributor.authorAiello, L.en
dc.contributor.authorAin, A.en
dc.contributor.authorAjith, P.en
dc.contributor.authoret al.en
dc.date.issued2018en
dc.identifier.citationPhysical Review Letters, 2018; 120(20):201102-1-201102-13en
dc.identifier.issn0031-9007en
dc.identifier.issn1079-7114en
dc.identifier.urihttp://hdl.handle.net/2440/114235-
dc.description.abstractThe detection of gravitational waves with Advanced LIGO and Advanced Virgo has enabled novel tests of general relativity, including direct study of the polarization of gravitational waves. While general relativity allows for only two tensor gravitational-wave polarizations, general metric theories can additionally predict two vector and two scalar polarizations. The polarization of gravitational waves is encoded in the spectral shape of the stochastic gravitational-wave background, formed by the superposition of cosmological and individually unresolved astrophysical sources. Using data recorded by Advanced LIGO during its first observing run, we search for a stochastic background of generically polarized gravitational waves. We find no evidence for a background of any polarization, and place the first direct bounds on the contributions of vector and scalar polarizations to the stochastic background. Under log-uniform priors for the energy in each polarization, we limit the energy densities of tensor, vector, and scalar modes at 95% credibility to ΩT0<5.58×10−8, ΩV0<6.35×10−8, and ΩS0<1.08×10−7 at a reference frequency f0=25  Hz.en
dc.description.statementofresponsibilityDaniel D Brown … Huy T Cao … Miftar Ganija … Won Kim … Eleanor J King … Jesper Munch … David J Ottaway … Peter J Veitch … et al.en
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.rights© 2018 American Physical Societyen
dc.subjectLIGO Scientific Collaboration and Virgo Collaborationen
dc.titleSearch for tensor, vector, and scalar polarizations in the stochastic gravitational-wave backgrounden
dc.typeJournal articleen
dc.identifier.rmid0030090013en
dc.identifier.doi10.1103/PhysRevLett.120.201102en
dc.identifier.pubid398667-
pubs.library.collectionPhysics publicationsen
pubs.library.teamDS10en
pubs.verification-statusVerifieden
pubs.publication-statusPublisheden
Appears in Collections:Physics publications

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