Curvaton model constraints from WMAP

Details Curvaton model constraints from WMAP Curvaton model constraints from WMAP

Nov 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003newar..47..793g&link_type=abstract

New Astronomy Reviews, Volume 47, Issue 8-10, p. 793-796.

Astronomy and Astrophysics

Astronomy

5

Scientific paper

Simple curvaton models can generate a mixture of correlated primordial adiabatic and isocurvature perturbations. Working numerically we use the latest WMAP observations and a variety of other data to constrain the curvaton model. We find that models with an isocurvature contribution are not favored relative to simple purely adiabatic models. However, a significant primordial totally correlated baryon isocurvature perturbation is not ruled out. Certain classes of curvaton model are thereby ruled out, other classes predict enough non-Gaussianity to be detectable by the Planck satellite.

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