Johan Comparat

The SRG/eROSITA All-Sky Survey. Early dark energy and Hubble constant from the cluster mass function

The evolution of the mass function of massive galaxy clusters is a well-established cosmological probe. Using the eROSITA X-ray instrument on board the (SRG) mission, the western Galactic hemisphere of eROSITA's first All-Sky Survey (eRASS1) delivers a uniformly selected and secu...