Joint Bayesian component separation and CMB power spectrum estimation

1 code implementation • 7 Sep 2007 • H. K. Eriksen, J. B. Jewell, C. Dickinson, A. J. Banday, K. M. Gorski, C. R. Lawrence

Given a parametric model of the foreground signals, we estimate efficiently and accurately the exact joint foreground-CMB posterior distribution, and therefore all marginal distributions such as the CMB power spectrum or foreground spectral index posteriors.

HEALPix -- a Framework for High Resolution Discretization, and Fast Analysis of Data Distributed on the Sphere

2 code implementations • 21 Sep 2004 • K. M. Gorski, E. Hivon, A. J. Banday, B. D. Wandelt, F. K. Hansen, M. Reinecke, M. Bartelman

HEALPix -- the Hierarchical Equal Area iso-Latitude Pixelization -- is a versatile data structure with an associated library of computational algorithms and visualization software that supports fast scientific applications executable directly on very large volumes of astronomical data and large area surveys in the form of discretized spherical maps.

astro-ph

On Foreground Removal from the Wilkinson Microwave Anisotropy Probe Data by an Internal Linear Combination Method: Limitations and Implications

1 code implementation • 3 Mar 2004 • H. K. Eriksen, A. J. Banday, K. M. Gorski, P. B. Lilje

Next we describe how to generate Monte Carlo simulations of the ILC map, and find that these agree well with the observed map on angular scales up to l~200.

astro-ph

MASTER of the CMB Anisotropy Power Spectrum: A Fast Method for Statistical Analysis of Large and Complex CMB Data Sets

1 code implementation • 17 May 2001 • E. Hivon, K. M. Gorski, C. B. Netterfield, B. P. Crill, S. Prunet, F. Hansen

We describe a fast and accurate method for estimation of the cosmic microwave background (CMB) anisotropy angular power spectrum --- Monte Carlo Apodised Spherical Transform EstimatoR.

astro-ph

Analysis Issues for Large CMB Data Sets

no code implementations • 18 Dec 1998 • K. M. Gorski, E. Hivon, B. D. Wandelt

Multi-frequency, high resolution, full sky measurements of the anisotropy in both temperature and polarisation of the cosmic microwave background radiation are the goals of the satellite missions MAP (NASA) and Planck (ESA).