Cosmological perturbations in warm inflationary models with viscous pressure

Sergio Del Campo, RAMON ALEJANDRO HERRERA APABLAZA, Diego Pavón

Research output: Contribution to journalArticlepeer-review

58 Scopus citations

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 Wilkinson Microwave Anisotropy Probe 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.

Original languageEnglish
Article number083518
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume75
Issue number8
DOIs
StatePublished - 17 Apr 2007

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