Oral Presentation

Mapping the Galaxy Distribution in and around Galaxy Clusters

Author(s): Ho Seong Hwang (KASI)

Presenter: Ho Seong Hwang (Korea Astronomy and Space Science Institute)

Measurement of the mass distribution in galaxy clusters is an important test of structure formation models. Among many ways to map the matter distribution in clusters, three methods including galaxy redshift, weak lensing and X-ray surveys have been widely used. The three methods are complementary, and the combination of them is helpful for better understanding the assembly history of the cluster and understanding the systematics of each method. We present the results from extensive redshift surveys of nearby clusters focusing on the comparisons of galaxy distributions with the matter distributions from weak-lensing and/or X-ray surveys.