摘要：Context.Measuring and calibrating relations between cluster observables is critical for resource-limited studies. The mass–richness relation of clusters offers an observationally inexpensive way of estimating masses. Its calibration is essential for cluster and cosmological studies, especially for high-redshift clusters. Weak gravitational lensing magnification is a promising and complementary method to shear studies, that can be applied at higher redshifts.Aims.We aim to employ the weak lensing magnification method to calibrate the mass–richness relation up to a redshift of 1.4. We used theSpitzerAdaptation of the Red-Sequence Cluster Survey (SpARCS) galaxy cluster candidates (0.2 1.0is 4.1σ; for the entire cluster sample we obtained an averageM200of1.28-0.21+0.23× 1014M⊙.Conclusions.Our measurements demonstrated the feasibility of using weak lensing magnification as a viable tool for determining the average halo masses for samples of high redshift galaxy clusters. The results also established the success of using galaxy over-densities to select massive clusters atz> 1. Additional studies are necessary for further modelling of the various systematic effects we discussed.
