CMB anisotropy predictions for a model of double inflation
Astrophysics
2009-10-30 v2
Abstract
We consider a double-inflationary model with two massive scalar fields interacting only gravitationally in the context of a flat cold dark matter (CDM) Universe. The cosmic microwave background (CMB) temperature anisotropies produced in this theory are investigated in great details for a window of parameters where the density fluctuation power spectrum P(k) is in good agreement with observations. The first Doppler (``acoustic'') peak is a crucial test for this model as well as for other models. For the ``standard'' values of the cosmological parameters of CDM, our model is excluded if the height of the Doppler peak is sensibly higher than about three times the Sachs-Wolfe plateau.
Cite
@article{arxiv.astro-ph/9710083,
title = {CMB anisotropy predictions for a model of double inflation},
author = {Julien Lesgourgues and David Polarski},
journal= {arXiv preprint arXiv:astro-ph/9710083},
year = {2009}
}
Comments
12 pages LaTeX using revtex, to be published in Phys. Rev. D