Planck 2015 results

Séminaire IPAG de Matthieu Tristram (LAL), jeudi 26 février 2015 à 11h00, IPAG seminar room

Planck is the ESA telescope launched in 2009 that surveyed with unprecedented precision the Cosmic Microwave Background (CMB), providing with the highest resolution measurements so far of the CMB temperature and polarization anisotropies. The first Planck release happened in 2013. The second Planck data release that includes the full mission and the first Planck polarization data has just become available. In this talk I will give an overview of the new Planck results, focusing on the improvement of the constraints on the cosmological parameters thanks to the new full mission and polarization data. I will give a status of the constraints on tensor coming from BICEP2 and from the joint analysis with Planck data. I will then present prospects for the next (and last) Planck release which will be essentially focused on constraints from the polarized large angular scales.