TY - JOUR
T1 - Cosmological perturbations in warm inflationary models with viscous pressure
AU - Del Campo, Sergio
AU - Herrera, Ramón
AU - Pavón, Diego
PY - 2007/4/17
Y1 - 2007/4/17
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=34249307468&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.75.083518
DO - 10.1103/PhysRevD.75.083518
M3 - Article
AN - SCOPUS:34249307468
SN - 1550-7998
VL - 75
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 8
M1 - 083518
ER -