# Non-Gaussian foreground residuals of the WMAP first-year maps

@article{Medeiros2006NonGaussianFR, title={Non-Gaussian foreground residuals of the WMAP first-year maps}, author={Jo{\~a}o R. Medeiros and Carlo R. Contaldi}, journal={Monthly Notices of the Royal Astronomical Society}, year={2006}, volume={367}, pages={39-45} }

We investigate the effect of foreground residuals in the WMAP (Wilkinson Microwave Anisotropy Probe) data by adding foreground contamination to Gaussian ensembles of cosmic microwave background (CMB) signal and noise maps. We evaluate a set of non-Gaussian estimators on the contaminated ensembles to determine with what accuracy any residual in the data can be constrained using higher-order statistics. We apply the estimators to the raw and cleaned Q-, V- and W-band first-year maps. The…

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