Open AccessSource mergers and bubble growth during reionization
Author(s) -
Cohn J. D.,
Chang TzuChing
Publication year - 2007
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1111/j.1365-2966.2006.11092.x
Subject(s) - physics , reionization , halo , photon , astrophysics , ionization , accretion (finance) , limiting , bubble , production (economics) , black hole (networking) , astronomy , redshift , galaxy , optics , quantum mechanics , ion , mechanical engineering , computer network , routing protocol , routing (electronic design automation) , mechanics , computer science , economics , macroeconomics , link state routing protocol , engineering
The recently introduced models of reionization bubbles based on extended Press–Schechter theory (by Furlanetto, Hernquist & Zaldarriaga) 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 on to 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. By extending previous methods, 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.