Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/118327
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ravenni, Andrea | - |
dc.contributor.author | Verde, Licia | - |
dc.contributor.author | Cuesta, Antonio J. | - |
dc.date.accessioned | 2017-11-30T15:11:42Z | - |
dc.date.available | 2017-11-30T15:11:42Z | - |
dc.date.issued | 2016-08-12 | - |
dc.identifier.issn | 1475-7516 | - |
dc.identifier.uri | http://hdl.handle.net/2445/118327 | - |
dc.description.abstract | We present a minimally parametric, model independent reconstruction of the shape of the primordial power spectrum. Our smoothing spline technique is well-suited to search for smooth features such as deviations from scale invariance, and deviations from a power law such as running of the spectral index or small-scale power suppression. We use a comprehensive set of the state-of the art cosmological data: Planck observations of the temperature and polarisation anisotropies of the cosmic microwave background, WiggleZ and Sloan Digital Sky Survey Data Release 7 galaxy power spectra and the Canada-France-Hawaii Lensing Survey correlation function. This reconstruction strongly supports the evidence for a power law primordial power spectrum with a red tilt and disfavours deviations from a power law power spectrum including small-scale power suppression such as that induced by significantly massive neutrinos. This offers a powerful confirmation of the inflationary paradigm, justifying the adoption of the inflationary prior in cosmological analyses. | - |
dc.format.extent | 20 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Institute of Physics (IOP) | - |
dc.relation.isformatof | Versió postprint del document publicat a: https://doi.org/10.1088/1475-7516/2016/08/028 | - |
dc.relation.ispartof | Journal of Cosmology and Astroparticle Physics, 2016, vol. 2016, num. 8, p. 1-18 | - |
dc.relation.uri | https://doi.org/10.1088/1475-7516/2016/08/028 | - |
dc.rights | (c) IOP Publishing Ltd and Sissa Medialab srl, 2016 | - |
dc.source | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) | - |
dc.subject.classification | Cosmologia | - |
dc.subject.other | Cosmology | - |
dc.title | Red, straight, no bends: primordial power spectrum reconstruction from CMB and large-scale structure | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 662425 | - |
dc.date.updated | 2017-11-30T10:59:13Z | - |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/FP7/240117/EU//PHYS.LSS | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Publicacions de projectes de recerca finançats per la UE |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
662425.pdf | 6.42 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.