Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Inhomogeneous Background of H2 Dissociating Radiation During Cosmic
  Reionization   The first, self-consistent calculations of the cosmological H_2 dissociating
UV background produced during the epoch of reionization (EOR) 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
the sources in our simulation volume down to dwarf galaxies of mass ~ 10^8
solar mass, 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 H_2
between 11 and 13.6 eV.

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The categories of this paper are: econ
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The categories of this paper are: adap-org
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The categories of this paper are: eess
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The categories of this paper are: gr-qc
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The categories of this paper are: dg-ga
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-lat
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The categories of this paper are: mtrl-th
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The categories of this paper are: supr-con
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The categories of this paper are: cond-mat
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The categories of this paper are: math-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-ex
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The categories of this paper are: chem-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: chao-dyn