Cosmological reionization after WMAP: perspectives from PLANCK and future CMB missions

Details Cosmological reionization after WMAP: perspectives from PLANCK and future CMB missions Cosmological reionization after WMAP: perspectives from PLANCK and future CMB missions

2004-11-15

arxiv.org/abs/astro-ph/0411415v1

Astronomy and Astrophysics

Astrophysics

19 pages, 10 figures, to be published in proc. JENAM 2004 meeting "The many scales in the Universe", Granada, Spain, 13-17 Sep

Scientific paper

The WMAP first year detection of a high redshift reionization through its imprints on CMB anisotropy T and TE mode angular power spectra calls for a better comprehension of the universe ionization and thermal history after the standard recombination. Different reionization mechanisms predict different signatures in the CMB, both in temperature and polarization anisotropies and in spectral distortions. The Planck capability to distinguish among different scenarios through its sensitivity to T, TE, and E mode angular power spectra is discussed. Perspectives open by future high sensitivity experiments on the CMB polarization anisotropy and spectrum are also presented.

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