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|+ Best-fitDati rilevanti dei [[Modello Lambda-CDM modelCMD|cosmologicalparametri parameterscosmologici]] fromal WMAPterzo three-yearanno resultsdi funzionamento del WMAP<ref name="2007Spergel">Spergel et al. (2007)</ref>

! ParameterParametero !! SymbolSimbolo !! BestDato fitmigliore (WMAPsolo onlyWMAP)

|-

| [[Hubble'sCostante constantdi Hubble]] ( {{frac|km|Mpc·s}} ) || <math>H_0</math> || <math>0.732^{+0.031}_{-0.032}</math>

|-

| Contenuto [[BaryonBarione|barionico]]ic content || <math>\Omega_b h^2</math> || 0.0229 ± 0.00073

|-

| MatterContenuto contentdi materia || <math>\Omega_m h^2</math> || <math>0.1277^{+0.0080}_{-0.0079}</math>

|-

| [[OpticalProfondità depthottica]] toalla [[reionizationreionizzazione]]<ref name="">Optical depth to reionization improved due to polarization measurements.<supref name="2007Hinshaw">{{Hinshaw et al. (2007)</ref|a|[a]}}></supref> || <math>\tau</math> || 0.089 ± 0.030

|-

| Scalar spectral index ||<math>n_s</math> || 0.958 ± 0.016

|-

| FluctuationAmpiezza amplitudefluttuazione at 8h⁻¹ Mpc ||<math>\sigma_8</math> || <math>0.761^{+0.049}_{-0.048}</math>

|-

| [[AgeEtà of the universedell'universo]] ([[Annum|Ga]]) || <math>t_0</math> || <math>13.73^{+0.16}_{-0.15}</math>

|-

| Tensor-to-scalar ratio <sup>{{ref|b| name="">< 0.30 when combined with [b[SDSS]}}] data. No indication of non-gaussianity.<ref name="2007Spergel" /sup></ref> || <math>r</math> || <0.65

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[a] {{note|a}} Optical depth to reionization improved due to polarization measurements.<ref name="2007Hinshaw">Hinshaw et al. (2007)</ref><br>

[b] {{note|b}} < 0.30 when combined with [[SDSS]] data. No indication of non-gaussianity.<ref name="2007Spergel" />

=== Five-year data release ===