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New insights into foreground analysis of the WMAP five-year data using FASTICA
M. Bottino, A. J. Banday, D. Maino
In this paper, we present a foreground analysis of the WMAP 5-year data using the FASTICA algorithm, improving on the treatment of the WMAP 3-year data in Bottino et al 2008. We re…
Frequentist comparison of CMB local extrema statistics in the five-year WMAP data with two anisotropic cosmological models
Zhen Hou, A. J. Banday, K. M. Gorski +2
We present local extrema studies of two models that introduce a preferred direction into the observed cosmic microwave background (CMB) temperature field. In particular, we make a…
The two-and three-point correlation functions of the polarized five-year WMAP sky maps
E. Gjerløw, H. K. Eriksen, A. J. Banday +2
We present the two- and three-point real space correlation functions of the five-year WMAP sky maps, and compare the observed functions to simulated LCDM concordance model ensemble…
Modelling the Galactic Magnetic Field on the Plane in 2D
T. R. Jaffe, J. P. Leahy, A. J. Banday +3
We present a method for parametric modelling of the physical components of the Galaxy's magnetised interstellar medium, simulating the observables, and mapping out the likelihood s…
Non-Gaussian Signatures in the five-year WMAP data as identified with isotropic scaling indices
G. Rossmanith, C. Raeth, A. J. Banday +1
We continue the analysis of non-Gaussianities in the CMB by means of the scaling index method (SIM, Raeth, Schuecker & Banday 2007) by applying this method on the 5-year WMAP data.…
Increasing evidence for hemispherical power asymmetry in the five-year WMAP data
J. Hoftuft, H. K. Eriksen, A. J. Banday +3
(Abridged)Motivated by the recent results of Hansen et al. (2008) concerning a noticeable hemispherical power asymmetry in the WMAP data on small angular scales, we revisit the dip…