Making waves on CMB power spectrum and inflaton dynamics
Astrophysics
2010-04-05 v2 High Energy Physics - Phenomenology
Abstract
We discuss cosmic microwave background anisotropies in models with an unconventional primordial power spectrum. In particular, we consider an initial power spectrum with some ``spiky'' corrections. Interestingly, such a primordial power spectrum generates ``wavy'' structure in the CMB angular power spectrum.
Keywords
Cite
@article{arxiv.astro-ph/0407631,
title = {Making waves on CMB power spectrum and inflaton dynamics},
author = {Masahiro Kawasaki and Fuminobu Takahashi and Tomo Takahashi},
journal= {arXiv preprint arXiv:astro-ph/0407631},
year = {2010}
}
Comments
8 pages, 2 figures, version accepted for publication in Physics Letters B; several references are added