Galaxy cluster science with the eROSITA all-sky survey
Dominique Eckert (University of Geneva)
Tuesday 02/04/2019 @ 14:00, Sala IV piano Battiferro
As the most massive collapsed systems in the Universe, galaxy clusters are excellent laboratories for studying the formation of structures and constrain cosmological parameters. Large surveys in the X-ray band are well suited for detecting and studying galaxy clusters, since the X-ray signal traces the dominant baryonic component - the intracluster medium (ICM). eROSITA is a wide-field X-ray survey instrument that will be launched soon on the SRG spacecraft. The eROSITA survey represents a 20-fold increase in sensitivity compared to its predecessor, and it is expected to detect about 100,000 galaxy clusters. I will give an overview of the mission and focus on the expected advances in the field of galaxy clusters and cosmology.