Dynamical analysis of stacked galaxy clusters (informal talk)

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 Time:  Wednesday, September 20, 2017, 10:00am
 Title:  Dynamical analysis of stacked galaxy clusters (informal talk)
 Speaker:  Dr. Yanchuan Cai (University of Edinburgh)
 Location:

蒙民伟科技南楼 S621


ABSTRACT

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.


Slides: 20170920-Cai.pdf