Cosmic Radiative Feedback from Reionization
Astrophysics
2008-06-26 v1
Abstract
We explore the effect of cosmic radiative feedback from the sources of reionization on the thermal evolution of the intergalactic medium. We find that different prescriptions for this feedback predict quite different thermal and reionization histories. In spite of this, current data can not discriminate among different reionization scenarios. We find that future observations both from 21-cm and CMB experiments can be used to break the degeneracy among model parameters provided that we will be able to remove the foreground signal at the percent (or better) level.
Cite
@article{arxiv.0806.4119,
title = {Cosmic Radiative Feedback from Reionization},
author = {R. Salvaterra and C. Burigana and R. Schneider and T. R. Choudhury and A. Ferrara and L. A. Popa},
journal= {arXiv preprint arXiv:0806.4119},
year = {2008}
}
Comments
4 pages, 5 figures. To appear in Mem. SAIt, Proceedings of the "LII congresso della Societa' Astronomica Italiana", Teramo, May 4-8 2008