Tuesday, September 24, 2013

Cluster Mass

The mass of the clusters from the GMBCG catalog have not been calibrated by using weak lensing techniques. I correlate the richness estimate of the same clusters from GMBCG and MaxBCG and build the following mass ~ richness (GM_Scaled_Ngals) relation for GMBCG clusters: (I use Ngals to denote GM_Scaled_Ngals in the equation)

cluster mass = 8.8e13*((0.66*Ngals+9.567)/20.)^1.28 (h^-1 M_sun)