Mass-Richness relations for X-ray and SZE-selected clusters at $0.4<z<2.0$ as seen by $Spitzer$ at 4.5$\mu$m

A. Rettura, R. Chary, J. Krick +1

We study the mass-richness relation of 116 spectroscopically-confirmed massive clusters at $0.4<z<2$ by mining the $Spitzer$ archive. We homogeneously measure the richness at 4…