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http://hdl.handle.net/2445/98560
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DC Field | Value | Language |
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dc.contributor.author | Hiranya, V.P. | - |
dc.contributor.author | Verde, Licia | - |
dc.date.accessioned | 2016-05-12T14:58:59Z | - |
dc.date.available | 2016-05-12T14:58:59Z | - |
dc.date.issued | 2010 | - |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.uri | http://hdl.handle.net/2445/98560 | - |
dc.description.abstract | We present a minimally parametric reconstruction of the primordial power spectrum using the most recent cosmic microwave background and large-scale structure data sets. Our goal is to constrain the shape of the power spectrum while simultaneously avoiding strong theoretical priors and over-fitting of the data. We find no evidence for any departure from a power-law spectral index. We also find that an exact scale-invariant power spectrum is disfavored by the data, but this conclusion is weaker than the corresponding result assuming a theoretically-motivated power-law spectral index prior. The reconstruction shows that better data are crucial to justify the adoption of such a strong theoretical prior observationally. These results can be used to determine the robustness of our present knowledge when compared with forthcoming precision data from Planck. | - |
dc.format.extent | 1 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | American Physical Society | - |
dc.relation | info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.81.021302 | - |
dc.relation.isformatof | Reproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevD.81.021302 | - |
dc.relation.ispartof | Physical Review D, 2010, vol. 81, num. 2, p. 021302-1-021302-5 | - |
dc.relation.uri | http://dx.doi.org/10.1103/PhysRevD.81.021302 | - |
dc.rights | (c) American Physical Society, 2010 | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Espectroscòpia | - |
dc.subject.classification | Constants físiques | - |
dc.subject.other | Spectrum analysis | - |
dc.subject.other | Physical constants | - |
dc.title | The shape of the primordial power spectrum: A last stand before Planck data | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 603915 | - |
dc.date.updated | 2016-05-12T14:59:04Z | - |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/FP7/240117/EU//PHYS.LSS | - |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/FP7/203314/EU//COSMIC ACCELERATION | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) Publicacions de projectes de recerca finançats per la UE |
Files in This Item:
File | Description | Size | Format | |
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603915.pdf | 2.72 MB | Adobe PDF | View/Open |
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