The anisotropic power spectrum and bispectrum in the f (')F 2 mechanism

a 1% (10%) anisotropy in the power spectrum corresponds to an anisotropic bispectrum which is enhanced like the local one in the squeezed limit, and with an eective local fNL 3 ( 30). More in general, a signicant anisotropy of the perturbations may be a natural outcome of all models that sustain higher than 0 spin elds during ination.