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We use the local curvature to investigate the possible existence ofnon-Gaussianity/asymmetry in the WMAP data. Considering the full sky we findresults which are consistent with the Gaussian assumption. However, strongnon-Gaussian features emerge when considering the northern and southerngalactic hemisphere separately, particularly on scales between 1 and 5 degrees.Quite interestingly, the maximum non-Gaussianity is found for hemispherescentered near the ecliptic poles, which might suggest the presence of somesystematic effect. The direction of the asymmetry seems consistent with thefindings by Eriksen et al. 2004.Comment: Submitted to ApJ Letter

Asymmetries in the Local Curvature of the Wilkinson Microwave Anisotropy Probe Data