Probing the imprint of interacting dark energy on very large scales

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dc.contributor.authorDuniya, Didam, G. A.
dc.contributor.authorBertacca, Daniele
dc.contributor.authorMaartens, Roy
dc.date.accessioned2015-10-22T18:19:05Z
dc.date.available2015-10-22T18:19:05Z
dc.date.issued2015
dc.description.abstractThe observed galaxy power spectrum acquires relativistic corrections from light-cone effects, and these corrections grow on very large scales. Future galaxy surveys in optical, infrared and radio bands will probe increasingly large wavelength modes and reach higher redshifts. In order to exploit the new data on large scales, an accurate analysis requires inclusion of the relativistic effects. This is especially the case for primordial non-Gaussianity and for extending tests of dark energy models to horizon scales. Here we investigate the latter, focusing on models where the dark energy interacts nongravitationally with dark matter. Interaction in the dark sector can also lead to large-scale deviations in the power spectrum. If the relativistic effects are ignored, the imprint of interacting dark energy will be incorrectly identified and thus lead to a bias in constraints on interacting dark energy on very large scales.en_US
dc.description.accreditationWeb of Scienceen_US
dc.identifier.citationDuniya, D.G.A., et al. (2015). Probing the imprint of interacting dark energy on very large scales. Physical Review D 91, 063530en_US
dc.identifier.issn1550-7998
dc.identifier.urihttp://hdl.handle.net/10566/1894
dc.language.isoenen_US
dc.privacy.showsubmitterfalse
dc.publisherAmerican Physical Societyen_US
dc.rightsThis is the author version of a published article available at http://journals.aps.org/prd/abstract/10.1103/PhysRevD.91.063530
dc.source.urihttp://dx.doi.org/10.1103/PhysRevD.91.063530
dc.status.ispeerreviewedtrue
dc.subjectCosmologyen_US
dc.subjectGalaxiesen_US
dc.subjectnon-Gaussianityen_US
dc.subjectDark energyen_US
dc.subjectDark matteren_US
dc.subjectInteracting dark energyen_US
dc.titleProbing the imprint of interacting dark energy on very large scalesen_US
dc.typeArticleen_US

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