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Model‐independent Reconstruction of the Primordial Power Spectrum fromWilkinson Microwave Anistropy ProbeData
2003
Astrophysical Journal
Reconstructing the shape of the primordial power spectrum in a model independent way from cosmological data is a useful consistency check on what is usually assumed regarding early universe physics. It is also our primary window to unknown physics during the inflationary era. Using a power-law form for the primordial power spectrum P_in(k) and constraining the scalar spectral index and its running, Peiris03 found that the first year WMAP data seem to indicate a preferred scale in P_in(k). We
doi:10.1086/379161
fatcat:77rqxo5uezgdhno5gm3femnvs4