Mapping the ionizing sources with CMB polarization measurements

Abstract

We show that the delay of structure formation from WMAP3 can not fully account for the reduction of electron optical depth from WMAP1 to WMAP3 when the radiative transfer effects and feedback mechanisms are took into account in computing the reionization history of the Universe. As the ultimate limit in constraining the reionizatin history of the Universe with Planck will be placed by the our understanding of systematic effects and foregrounds removal, we discuss also these aspects.

References in corpus (5)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Three Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Polarization Analysis
• ROMA: a map-making algorithm for polarised CMB data sets
• Radiative effects by high-z UV radiation background: Implications for the future CMB polarization measurements
• WMAP 3-year polarization data: Implications for the reionization history