From Planck to the Future of CMB

Planck‘s recent measurements of the temperature and polarization anisotropies of the Cosmic Microwave Background (CMB) have established a cosmological framework that will remain the standard for many years to come. From space, the LiteBIRD mission will pick up on this legacy in the next decade, with the aim to improve dramatically on polarization observations at large angular scales. In a later time frame, ESA’s recently issued future scientific programme – Voyage 2050 – has highlighted the need for a large space mission to focus on high-precision spectroscopy of the CMB. And both ground-based and balloon-borne observatories are also expected in the coming years to improve significantly on Planck’s observations of the polarized anisotropies of the CMB, especially on smaller angular scales. In order to meet their ambitious objectives, all of these upcoming experiments will have to address and overcome very significant technical and data analysis challenges, some of which have already been revealed by Planck. It is therefore appropriate at this time to examine these challenges from the perspective of the experience accumulated by Planck in the design and operation of its instruments and in the preparation, conduct, and analysis of its all-sky surveys. In this context, the workshop is designed to bring together key members of the Planck and future experiment teams to foster discussion on some of the most challenging topics.

Topics: detectors, optical modelling, instrument characterisation, systematic effects, foreground component separation, inter-dependent data analysis