Strongly Scale-dependent Non-Gaussianity

Details Strongly Scale-dependent Non-Gaussianity Strongly Scale-dependent Non-Gaussianity

2010-09-15

arxiv.org/abs/1009.3020v1

Phys.Rev.D83:041301,2011

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

4 pages

Scientific paper

10.1103/PhysRevD.83.041301

We discuss models of primordial density perturbations where the non-Gaussianity is strongly scale-dependent. In particular, the non-Gaussianity may have a sharp cut-off and be very suppressed on large cosmological scales, but sizeable on small scales. This may have an impact on probes of non-Gaussianity in the large-scale structure and in the cosmic microwave background radiation anisotropies.

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