Home > Research > Publications & Outputs > Non-Gaussianity and cosmic uncertainty in curva...

Text available via DOI:

View graph of relations

Non-Gaussianity and cosmic uncertainty in curvaton-type models

Research output: Contribution to journalJournal article

Published
<mark>Journal publication date</mark>2006
<mark>Journal</mark>Journal of Cosmology and Astroparticle Physics
<mark>State</mark>Published
<mark>Original language</mark>English

Abstract

In curvaton-type models, observable non-Gaussianity of the curvature perturbation would come from a contribution of the form (δσ)2, where δσ is Gaussian. I analyse this situation allowing δσ to be scale dependent. The actual curvaton model is considered in more detail than before, including its cosmic uncertainty and anthropic status. The status of curvaton-type models after WMAP (Wilkinson microwave anisotropy probe) year three data is considered.