Source Mergers and Bubble Growth During Reionization

Details Source Mergers and Bubble Growth During Reionization Source Mergers and Bubble Growth During Reionization

2006-03-16

arxiv.org/abs/astro-ph/0603438v3

Mon.Not.Roy.Astron.Soc.374:72-94,2007

Astronomy and Astrophysics

Astrophysics

44 pages, 11 figures, version to appear in MNRAS. Some discussion of case with WMAP parameters and expanded explanations

Scientific paper

10.1111/j.1365-2966.2006.11092.x

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.

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