Initial power spectrum shape
Astrophysics
2007-05-23 v1
Abstract
Mainly used to set constraints on cosmological parameters, CMB anisotropies can give information on primordial universe. Unfortunately, initial conditions and late time cosmology are degenerated. I focus on the effect of the shape of the initial power spectrum of fluctuations on the cosmological parameter estimation from CMB temperature anisotropies. Strong constraints obtained using a priori knowledge of the initial spectrum disappear when the latter is let free.
Cite
@article{arxiv.astro-ph/0412022,
title = {Initial power spectrum shape},
author = {Marian Douspis},
journal= {arXiv preprint arXiv:astro-ph/0412022},
year = {2007}
}
Comments
4 pages, Proceedings SF2A 2004 conference, Paris, eds.: F. Combes, D. Barret, T. Contini, F. Meynadier and L. Pagani