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Centro de Astrofísica da Universidade do Porto
22-26 August 2011, Porto, Portugal

 

Non-Gaussian perturbations from mixed inflaton-curvaton scenario
Fonseca, José (Institute of Cosmology and Gravitation - University of Portsmouth)

We consider a scenario where both curvaton and inflaton perturbations contribute to the primordial power spectrum. The predicted scale dependence of the power spectra and of the non-linearity parameters change. We will present the results for linear and non-linear perturbation and the observational consequences. We will study the allowed parameter space and explore how different observational quantities can be used to put complementary contraints on different model parameters within this mixed scenario.