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A low CMB variance in the WMAP data
C. Monteserin, R. B. Barreiro, P. Vielva +3
We have estimated the CMB variance from the three-year WMAP data, finding a value which is significantly lower than the one expected from Gaussian simulations using the WMAP best-f…
Non-Gaussianity analysis on local morphological measures of WMAP data
Y. Wiaux, P. Vielva, R. B. Barreiro +2
The decomposition of a signal on the sphere with the steerable wavelet constructed from the second Gaussian derivative gives access to the orientation, signed-intensity, and elonga…
Cosmological applications of a wavelet analysis on the sphere
J. D. McEwen, P. Vielva, Y. Wiaux +6
The cosmic microwave background (CMB) is a relic radiation of the Big Bang and as such it contains a wealth of cosmological information. Statistical analyses of the CMB, in conjunc…