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The inhomogeneous background of H2 dissociating radiation during cosmic reionization


Ahn, K; Shapiro, P R; Iliev, I T; Mellema, G; Pen, U L (2008). The inhomogeneous background of H2 dissociating radiation during cosmic reionization. In: O'Shea, B W; Heger, A. First stars III. Santa Fe, New Mexico, 15 - 20 July 2007. Melville NY: American Institut of Physics, 374-376.

Abstract

The first, self-consistent calculations of the cosmological H2 dissociating UV background produced during the epoch of reionization by the sources of reionization are presented. Large-scale radiative transfer simulations of reionization trace the impact of all the ionizing starlight on the IGM from all sources in our simulation volume down to dwarf galaxies of mass ~108 M[sun], identified by very high-resolution N-body simulations, including the self-regulating effect of IGM photoheating on dwarf galaxy formation. The UV continuum emitted below 13.6 eV by each source is then transferred through the same IGM, attenuated by atomic H Lyman series resonance lines, to predict the evolution of the inhomogeneous background in the Lyman-Werner band of H2 between 11 and 13.6 eV

The first, self-consistent calculations of the cosmological H2 dissociating UV background produced during the epoch of reionization by the sources of reionization are presented. Large-scale radiative transfer simulations of reionization trace the impact of all the ionizing starlight on the IGM from all sources in our simulation volume down to dwarf galaxies of mass ~108 M[sun], identified by very high-resolution N-body simulations, including the self-regulating effect of IGM photoheating on dwarf galaxy formation. The UV continuum emitted below 13.6 eV by each source is then transferred through the same IGM, attenuated by atomic H Lyman series resonance lines, to predict the evolution of the inhomogeneous background in the Lyman-Werner band of H2 between 11 and 13.6 eV

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Additional indexing

Item Type:Book Section, not refereed, original work
Communities & Collections:07 Faculty of Science > Institute for Computational Science
Dewey Decimal Classification:530 Physics
Language:English
Date:March 2008
Deposited On:10 Mar 2009 15:58
Last Modified:05 Apr 2016 13:10
Publisher:American Institut of Physics
Series Name:AIP conference proceedings
Number:990
ISBN:978-0-7354-0509-7
Publisher DOI:10.1063/1.2905584
Related URLs:http://opac.nebis.ch/F/?local_base=NEBIS&con_lng=GER&func=find-b&find_code=SYS&request=005643287
http://proceedings.aip.org/proceedings/ (Publisher)
http://arxiv.org/abs/0807.0920
Permanent URL: http://doi.org/10.5167/uzh-17705

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