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Joint Bayesian component separation and CMB power spectrum estimation
H. K. Eriksen, J. B. Jewell, C. Dickinson +3
We describe and implement an exact, flexible, and computationally efficient algorithm for joint component separation and CMB power spectrum estimation, building on a Gibbs sampling…
Bayesian analysis of the low-resolution polarized 3-year WMAP sky maps
H. K. Eriksen, Greg Huey, A. J. Banday +4
We apply a previously developed Gibbs sampling framework to the foreground corrected 3-yr WMAP polarization data and compute the power spectrum and residual foreground template amp…
Estimation of Polarized Power Spectra by Gibbs sampling
D. L. Larson, H. K. Eriksen, B. D. Wandelt +4
Earlier papers introduced a method of accurately estimating the angular cosmic microwave background (CMB) temperature power spectrum based on Gibbs sampling. Here we extend this fr…
Looking for non-Gaussianity in the COBE-DMR data with spherical wavelets
R. B. Barreiro, M. P. Hobson, A. N. Lasenby +3
We present an analysis of the Gaussianity of the 4-year COBE-DMR data (in HEALPix pixelisation) based on spherical wavelets. The skewness, kurtosis and scale-scale correlation spec…
RMS Anisotropy in the COBE-DMR Four-Year Sky Maps
A. J. Banday, K. M. Gorski, C. L. Bennett +5
The sky-RMS is the simplest model-independent characterization of a cosmological anisotropy signal. The RMS temperature fluctuations determined from the -DMR four-year sky ma…