Primordial Non-Gaussianity and Bispectrum Measurements in the Cosmic Microwave Background and Large-Scale Structure

Figure 13

Probability density function of temperature pixel from local primordial non-Gaussian CMB maps, obtained with the “exact” simulation algorithm described in Section 3.10.1. Different panels show the result for different values of , in order to give an idea of the order of magnitude of the signal that one wants to detect. For the non-Gaussianity is too small to be seen in these plots. Note that WMAP constrains to be .