Wilkinson Microwave Anisotropy Probe 7-yr constraints on fNL with a fast wavelet estimator

B. Casaponsa, R. B. Barreiro, A. Curto +2

A new method to constrain the local non-linear coupling parameter fNL based on a fast wavelet decomposition is presented. Using a multiresolution wavelet adapted to the HEALPix pix…