DARK MATTER DISTRIBUTION OF FOUR LOW-Z CLUSTERS OF GALAXIES

We present here the weak gravitational lensing detection of four nearby galaxy clusters in the southern sky: Abell 2029, Abell 85, Abell 1606 and Abell 2457. The weak lensing detections of Abell 1606 and Abell 2457 arethe rst in the literature. This work capitalizes on the wide eld of view of the Dark Energy Camera at the Cerro Tololo Inter-American Observatory, which we use to obtain deep, multi-wavelength imaging of all targets. We publish maps of the clusters' projected mass distributions, and obtain the M200 of their clusters through NFW prole ts to the two-dimensional tangential ellipticity signa/.