Colloquium on Sep. 30th, 2019

Structural studies of the ICM in galaxy clusters

Speaker: Gayoung Chon (Munich)

Venue: Room 2111, SWIFAR Building

Time: 10:00 AM, Monday, 30th September, 2019

Abstract:

X-ray observations of galaxy clusters reveal information about their growth and evolution. The accurate determination of the physical properties such as luminosity and temperature distributions can tell us about the underlying physics driving the dynamical evolution. Simultaneously a sample of clusters with a well understood selection function allows us to constrain cosmological models. Hence galaxy clusters are well established tools to probe astrophysics and cosmology. With a new subsample of the all-sky X-ray survey of galaxy clusters, I will show that we can extract valuable information that has not been considered previously and how it can help to strengthen the use of galaxy clusters as cosmological probes. With our cluster survey we can also probe the matter distribution in the local universe with interesting implications for the measurement of the Hubble constant.