Source Mergers and Bubble Growth During Reionization
Abstract
The recently introduced models of reionization bubbles based on extended Press-Schechter theory (Furlanetto, Zaldarriaga & Hernquist 2004) are generalized to include mergers of ionization sources. Sources with a recent major merger are taken to have enhanced photon production due to star formation, and accretion onto a central black hole if a black hole is present. This produces a scatter in the number of ionized photons corresponding to a halo of a given mass and a change in photon production over time for any given halo mass. Photon production histories, bubble distributions, and ionization histories are computed for several different parameter and recombination assumptions; the resulting distributions interpolate between previously calculated limiting cases.
Cite
@article{arxiv.astro-ph/0603438,
title = {Source Mergers and Bubble Growth During Reionization},
author = {J. D. Cohn and Tzu-Ching Chang},
journal= {arXiv preprint arXiv:astro-ph/0603438},
year = {2008}
}
Comments
44 pages, 11 figures, version to appear in MNRAS. Some discussion of case with WMAP parameters and expanded explanations