Journal Article

On the large-scale cosmic microwave background polarization

Paolo Cea

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 406, issue 1, pages 586-589
Published in print July 2010 | ISSN: 0035-8711
Published online July 2010 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-2966.2010.16697.x
On the large-scale cosmic microwave background polarization

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We discuss the large-scale polarization of the cosmic microwave background induced by the anisotropy of the spatial geometry of our Universe. Assuming an eccentricity at decoupling of about 0.64 × 10−2, we find an average large-scale polarization ΔTpol/T0= (0.5–1.0) × 10−6. We suggest that the forthcoming polarization data at large scales from Planck will be able to discriminate between our proposal and the generally accepted re-ionization scenario.

Keywords: cosmic background radiation; cosmology: theory

Journal Article.  2002 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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