Primordial Non-Gaussianity in the Large-Scale Structure of the Universe
Figure 4
Fractional deviation from the Gaussian mass function as a function of the peak height . Different symbols refer to different redshifts as indicated. The various curves are theoretical prediction at (see text). Halos were identified using a spherical overdensity (SO) finder with a redshift-dependent overdensity threshold (with increasing from 200 at high redshift to attain 350 at ). Error bars denote Poisson errors. For illustration, corresponds to a significance , 5.2, 7.7 at redshift , 1 and 2, respectively. Similarly, and correspond to , 3, 4.5 and 1.2, 1.9, 2.9, respectively.
