Reconstruction of the primordial fluctuation spectrum from the five-year WMAP data by the cosmic inversion method with band-power decorrelation analysis
arXiv:0809.4537 · doi:10.1103/PhysRevD.78.123002
Abstract
The primordial curvature fluctuation spectrum is reconstructed by the cosmic inversion method using the five-year WMAP data of the cosmic microwave background temperature anisotropy. We apply the covariance matrix analysis and decompose the reconstructed spectrum into statistically independent band-powers. The statistically significant deviation from a simple power-law spectrum suggested by the analysis of the first-year data is not found in the five-year data except possibly at one point near the border of the wavenumber domain where accurate reconstruction is possible.
9pages
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Cited by in corpus (5)
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- Reconstruction of the Primordial Power Spectrum using Temperature and Polarisation Data from Multiple Experiments
- Nongaussianity from Particle Production During Inflation
- Band-power reconstruction of the primordial fluctuation spectrum by the maximum likelihood reconstruction method
- Light Sterile Neutrinos and Inflationary Freedom