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Strongly Scale-dependent Non-Gaussianity
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-Gaussia...
| Autores principales: | , |
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| Formato: | info:eu-repo/semantics/article |
| Lenguaje: | eng |
| Publicado: |
Phys. Rev. D
2010
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevD.83.041301 http://cds.cern.ch/record/1292549 |
| Sumario: | 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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