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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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

Este documento está disponible también en : http://hdl.handle.net/10550/37912
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.

    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
http://dx.doi.org/10.1103/PhysRevD.81.123509

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