Cosmological perturbations in warm inflationary models with viscous pressure
Astrophysics
2008-11-26 v1 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
Scalar and tensorial cosmological perturbations generated in warm inflationary scenarios whose matter-radiation fluid is endowed with a viscous pressure are considered. Recent observational data from the WMAP experiment are employed to restrict the parameters of the model. Although the effect of this pressure on the matter power spectrum is of the order of a few percent, it may be detected in future experiments.
Cite
@article{arxiv.astro-ph/0703604,
title = {Cosmological perturbations in warm inflationary models with viscous pressure},
author = {Sergio del Campo and Ramon Herrera and Diego Pavon},
journal= {arXiv preprint arXiv:astro-ph/0703604},
year = {2008}
}
Comments
20 pages, to be published in the Physcal Review D