Reconstruction of the primordial fluctuation spectrum from the five-year WMAP data by the cosmic inversion method with band-power decorrelation analysis

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dc.creatorNagata, Ryo
dc.creatorYokoyama, Jun'ichi
dc.date2008-09-26
dc.date2008-12-06
dc.date.accessioned2026-07-07T12:22:34Z
dc.date.available2026-07-07T12:22:34Z
dc.descriptionThe 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.
dc.description9pages
dc.identifierhttps://arxiv.org/abs/0809.4537
dc.identifierhttp://arxiv.org/abs/0809.4537
dc.identifierPhys.Rev.D78:123002,2008
dc.identifierdoi:10.1103/PhysRevD.78.123002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/213693
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.titleReconstruction of the primordial fluctuation spectrum from the five-year WMAP data by the cosmic inversion method with band-power decorrelation analysis
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