Scale-dependent bias from the primordial non-Gaussianity with a Gaussian-squared field

الأصل · EN

We investigate the halo bias in the case where the primordial curvature fluctuations, Φ, are sourced from both a Gaussian random field and a Gaussian-squared field, as Φ(x) = ϕ(x) + ψ(x)² - <ψ(x)²>, so-called "ungaussiton model". We employ the peak-background split formula and find a new scale-dependence in the halo bias induced from the Gaussian-squared field.