Constraining cosmology with a new all-sky Compton parameter map from the Planck PR4 data

We constructed a new all-sky Compton parameter map (y-map) of the thermal Sunyaev-Zel’dovich (tSZ) effect from the 100–857 GHz frequency channel maps delivered within the Planck data release 4. The improvements in terms of noise and systematic effects translated into a y-map with a noise level smaller by ∼7 per cent compared to the maps released in 2015, and with significantly reduced survey strip...