Dust Distribution during Reionization

Details Dust Distribution during Reionization Dust Distribution during Reionization

2007-05-23

arxiv.org/abs/0705.3403v2

Astron.Astrophys.476:1145-1150,2007

Astronomy and Astrophysics

Astrophysics

6 pages, 6 figures; Typos fixed. Clarifications in the abstract, sections 2 and 4.1 and fig 6

Scientific paper

10.1051/0004-6361:20053151

The dust produced by the first generation of stars will be a foreground to cosmic microwave background. In order to evaluate the effect of this early dust, we calculate the power spectrum of the dust emission anisotropies and compare it with the sensitivity limit of the Planck satellite. The spatial distribution of the dust is estimated through the distribution of dark matter. At small angular scales ($\ell \gtrsim 1000$) the dust signal is found to be noticeable with the Planck detector for certain values of dust lifetime and production rates. The dust signal is also compared to sensitivities of other instruments. The early dust emission anisotropies are finally compared to those of local dust and they are found to be similar in magnitude at mm wavelengths.

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