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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…
Asymmetries in the CMB anisotropy field
H. K. Eriksen, F. K. Hansen, A. J. Banday +2
We report on the results from two independent but complementary statistical analyses of the WMAP first-year data, based on the power spectrum and N-point correlation functions. We…
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…