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We study the impact of correlated instrumental noise and non-circular antennabeam patterns on primordial non-Gaussianity analysis. The two systematiceffects are reproduced in the case of the Planck mission, using Planck-likerealistic simulations. The non-Gaussian analysis is conducted with differentapproaches. First we adopt a blind approach, using the Spherical Mexican HatWavelet and the Minkowski functionals, and then a fNL estimator. We lookrespectively for false primordial non-Gaussian detections and for bias orvariance increase in the estimated fNL value. Even if some slight effects arepresent, we can not observe any significant impact of the 1/f noise and theasymmetric beam on non-Gaussianity searches in the context of the Planckmission.

Impact of the 1/f noise and the asymmetric beam on non-Gaussianity searches with Planck