Abstract
eROSITA is a telescope aboard the SRG observatory which has conducted over four all-sky surveys at X-ray wavelengths. Its first survey has yielded over 12,000 optically confirmed clusters of galaxies in the western galactic hemisphere. With this large sample of clusters we can not only study cosmology and large scale structure, but also the properties of clusters themselves. In the X-ray waveband we observe the intracluster medium of clusters, their hot plasma atmospheres. I will describe the survey and the sample of clusters. I will discuss how we have characterised the X-ray morphology of the clusters, using parameters sensitive to the shape and profiles of the clusters. These results tell us about how disturbed clusters are and how they are affected by feedback. I will discuss new results using a Bayesian model to study the evolution of their morphology over time and mass, taking into account selection effects for the first time.
Anyone interested is welcome to attend.