|Time:||Wednesday, September 20, 2017, 10:00am|
|Title:||Dynamical analysis of stacked galaxy clusters (informal talk)|
|Speaker:||Dr. Yanchuan Cai (University of Edinburgh)|
Comparing the lensing mass with dynamical mass of clusters is a powerful test for the equivalence principle and theories of gravity, but this depends on unbiased mass estimates from both methods. I will demonstrate how conventional assumptions made for dynamical analysis of stacked clusters can lead to biases, and how these biases they can be corrected. I will discuss further implications of the results for modelling the gravitational redshift signal associated with clusters.