Change search
ReferencesLink to record
Permanent link

Direct link
Dust from reionization
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.
Laboratoire d’Astrophysique, Observatoire de Grenoble.
2004 (English)In: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 425, 9-14 p.Article in journal (Refereed) Published
Abstract [en]

The possibility that population III stars have reionized the Universe at redshifts greater than 6 has recently gained momentum with WMAP polarization results. Here we analyse the role of early dust produced by these stars and ejected into the intergalactic medium. We show that this dust, heated by the radiation from the same population III stars, produces a submillimetre excess. The electromagnetic spectrum of this excess could account for a significant fraction of the FIRAS (Far Infrared Absolute Spectrophotometer) cosmic far infrared background above 700 micron. This spectrum, a primary anisotropy (Delta T) spectrum times the nu2 dust emissivity law, peaking in the submillimetre domain around 750 micron, is generic and does not depend on other detailed dust properties. Arcminute-scale anisotropies, coming from inhomogeneities in this early dust, could be detected by future submillimetre experiments such as Planck HFI.

Place, publisher, year, edition, pages
2004. Vol. 425, 9-14 p.
Research subject
URN: urn:nbn:se:ltu:diva-2556DOI: 10.1051/0004-6361:20034448Local ID: 02ccc730-70c3-11db-962b-000ea68e967bOAI: diva2:975409
Validerad; 2004; 20061110 (ysko)Available from: 2016-09-29 Created: 2016-09-29Bibliographically approved

Open Access in DiVA

fulltext(131 kB)1 downloads
File information
File name FULLTEXT01.pdfFile size 131 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Elfgren, Erik
By organisation
Energy Science
In the same journal
Astronomy and Astrophysics

Search outside of DiVA

GoogleGoogle Scholar
Total: 1 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 1 hits
ReferencesLink to record
Permanent link

Direct link