Speaker
Adrien LA POSTA
Description
In March 2025, the Atacama Cosmology Telescope (ACT) released a high resolution measurement of CMB polarization, covering 19 000 square degrees at 90, 150 and 220 Ghz, three times deeper than past measurements from the Planck satellite. In this talk, I will guide the audience through the different steps of the analysis of a CMB dataset, focusing on ACT DR6, and give an overview of the main cosmological results coming from ACT DR6 data, for the standard model of cosmology and some of its extensions.