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Dust distribution during reionization
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.
Laboratoire d’Astrophysique, Observatoire de Grenoble.
Université Lyon 1, Centre de Recherche Astrophysique de Lyon, Observatoire de Lyon.
2007 (English)In: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 476, 1145–1150- p.Article in journal (Refereed) Published
Abstract [en]

Context. The dust produced by the first generation of stars will be a foreground to cosmic microwave background.Aims. 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.Methods. The spatial distribution of the dust is estimated through the distribution of dark matter.Results. At small angular scales l ≥ 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 dustand they are found to be similar in magnitude at mm wavelengths.

Place, publisher, year, edition, pages
2007. Vol. 476, 1145–1150- p.
Research subject
URN: urn:nbn:se:ltu:diva-8211DOI: 10.1051/0004-6361:20053151Local ID: 6aed5540-a42b-11dc-8fee-000ea68e967bOAI: diva2:981102
Validerad; 2007; 20071206 (elf)Available from: 2016-09-29 Created: 2016-09-29Bibliographically approved

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