Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the nature of the sources of the cosmic infrared background   We discuss interpretation of the cosmic infrared background (CIB)
anisotropies detected by us recently in the Spitzer IRAC based measurements.
The fluctuations are approximately isotropic on the sky consistent with their
cosmological origin. They remain after removal of fairly faint intervening
sources and must arise from a population which has a strong CIB clustering
component with only a small shot-noise level. We discuss the constraints the
data place on the luminosities, epochs and mass-to-light ratios of the
indvidual sources producing them. Assuming the concordance LambdaCDM cosmology
the measurements imply that the luminous sources producing them lie at cosmic
times < 1 Gyr and were individually much brighter per unit mass than the
present stellar populations.

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The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
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The categories of this paper are: ao-sci
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The categories of this paper are: stat
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
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The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
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The categories of this paper are: supr-con
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The categories of this paper are: acc-phys
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The categories of this paper are: bayes-an
2
The categories of this paper are: math