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Cosmological Parameter Constraints as Derived from the Wilkinson Microwave Anisotropy Probe Data via Gibbs Sampling and the Blackwell-Rao Estimator
M. Chu, H. K. Eriksen, L. Knox +5
We study the Blackwell-Rao (BR) estimator of the probability distribution of the angular power spectrum, P(C_l|d), by applying it to samples of full-sky no-noise CMB maps generated…
HEALPix -- a Framework for High Resolution Discretization, and Fast Analysis of Data Distributed on the Sphere
K. M. Gorski, E. Hivon, A. J. Banday +4
HEALPix -- the Hierarchical Equal Area iso-Latitude Pixelization -- is a versatile data structure with an associated library of computational algorithms and visualization software…
Bayesian Power Spectrum Analysis of the First-Year WMAP data
I. J. O'Dwyer, H. K. Eriksen, B. D. Wandelt +6
We present the first results from a Bayesian analysis of the WMAP first year data using a Gibbs sampling technique. Using two independent, parallel supercomputer codes we analyze t…
Cosmological parameters and the WMAP data revisited
F. K. Hansen, A. Balbi, A. J. Banday +1
Several recent papers have made claims about the detection of an asymmetric distribution of large scale power in the cosmic microwave background anisotropy as measured by the WMAP…