A full press release (in Italian) related to this news is available on Media Inaf.

How to distil a dozen or so of cosmological parameters out of Planck maps? Extracting clean power spectra from tenth of terabytes of data — a jungle of signals and noise where contributions from background and foregrounds are deeply intertwined — is a real challenge. It requires a complex pipeline: a sequence of algorithms able to carry out component separation both on temperature and on polarization maps. Moreover, during the whole process, error propagation has to be carefully taken into account. The good news is that such a pipeline now exists: it has been designed and thoroughly tested by a team of scientists led by Sara Ricciardi (IASF-BO) and Anna Bonaldi (OA Padova). Their work has just been published on Monthly Notices.