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Estimating N-Point Correlation Functions from Pixelized Sky Maps
H. K. Eriksen, P. B. Lilje, A. J. Banday +1
We develop, implement and test a set of algorithms for estimating N-point correlation functions from pixelized sky maps. These algorithms are slow, in the sense that they do not br…
COBE-DMR-Normalized Dark Energy Cosmogony
Pia Mukherjee, Anthony J. Banday, Alain Riazuelo +2
Likelihood analyses of the COBE-DMR sky maps are used to determine the normalization of the inverse-power-law-potential scalar field dark energy model. Predictions of the DMR-norma…
Astrophysical components separation of COBE-DMR 4yr data with FastICA
D. Maino, A. J. Banday, C. Baccigalupi +2
We present an application of the fast Independent Component Analysis method to the COBE-DMR 4yr data. Although the signal-to-noise ratio in the COBE-DMR data is typically ,…
Reappraising foreground contamination in the COBE-DMR data
A. J. Banday, C. Dickinson, R. D. Davies +2
With the advent of all-sky H-Alpha surveys it is possible to determine a reliable free-free template of the diffuse interstellar medium (Dickinson, Davies & Davis 2003) which can b…
Foreground separation using a flexible maximum-entropy algorithm: an application to COBE data
R. B. Barreiro, M. P. Hobson, A. J. Banday +4
A flexible maximum-entropy component separation algorithm is presented that accommodates anisotropic noise, incomplete sky-coverage and uncertainties in the spectral parameters of…