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- W2022372593 abstract "We introduce a new method for reconstructing the primordial power spectrum, $P(k)$, directly from observations of the Cosmic Microwave Background (CMB). We employ Singular Value Decomposition (SVD) to invert the radiation perturbation transfer function. The degeneracy of the multipole $ell$ to wavenumber $k$ linear mapping is thus reduced. This enables the inversion to be carried out at each point along a Monte Carlo Markov Chain (MCMC) exploration of the combined $P(k)$ and cosmological parameter space. We present best--fit $P(k)$ obtained with this method along with other cosmological parameters." @default.
- W2022372593 created "2016-06-24" @default.
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- W2022372593 date "2010-01-11" @default.
- W2022372593 modified "2023-10-17" @default.
- W2022372593 title "Reconstruction of the primordial power spectrum by direct inversion" @default.
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- W2022372593 doi "https://doi.org/10.1088/1475-7516/2010/01/016" @default.
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