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Harrison-Zel'dovich primordial spectrum is consistent with observations
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Harrison-Zel'dovich primordial spectrum is consistent with observations
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| Pandolfi, Stefania; Giusarma, Elena; Kolb, Edward W.; Lattanzi, Massimiliano; Melchiorri, Alessandro; Mena Requejo, Olga; Cooray, Asantha; Serra, Paolo | |||
| This document is a artículoDate2010 | |||
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Este documento está disponible también en : http://hdl.handle.net/10550/37912 |
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| Inflation predicts primordial scalar perturbations with a nearly scale-invariant spectrum and a spectral index approximately unity (the Harrison--Zel'dovich (HZ) spectrum). The first important step for inflationary cosmology is to check the consistency of the HZ primordial spectrum with current observations. Recent analyses have claimed that a HZ primordial spectrum is excluded at more than 99% c.l.. Here we show that the HZ spectrum is only marginally disfavored if one considers a more general reionization scenario. Data from the Planck mission will settle the issue. | |||
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Pandolfi, Stefania Giusarma, Elena Kolb, Edward W. Lattanzi, Massimiliano Melchiorri, Alessandro Mena Requejo, Olga Cooray, Asantha Serra, Paolo 2010 Harrison-Zel'dovich primordial spectrum is consistent with observations Physical Review D 81 12 123509 |
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| http://dx.doi.org/10.1103/PhysRevD.81.123509 |
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22 - Física [3702]