PLANCK-LFI scientific goals: Implications for the reionization history

摘要

The PLANCK mission will be crucial to test the robustness of the ΛCDM concordance model since the relevant cosmological parameters will be measured with much better sensitivity. As the final scientific performance of PLANCK depends not only on the instrumental performances, but also on the detailed knowledge of the behavior of the astrophysical foregrounds, systematic effects and their interplay, in this paper we discuss these aspects from the point of view of the CMB angular power spectrum recovery. As an example of PLANCK scientific goal we discuss the possibility to constrain the reionization history of the Universe by using E-mode polarization CMB measurements.