# Dark Matter Distribution of Four Low-z Clusters of Galaxies

## TL;DR

This study uses weak gravitational lensing with the Dark Energy Camera to map the dark matter distribution in four low-redshift galaxy clusters, including first detections for two clusters.

## Contribution

It provides the first weak lensing detections for Abell 1606 and Abell 2457 and maps their mass distributions using deep multi-wavelength imaging.

## Key findings

- Detected weak lensing signals in four clusters.
- Mapped projected mass distributions of the clusters.
- Estimated cluster masses using NFW profile fits.

## Abstract

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 are the first in the literature. This work capitalizes on the wide field 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 $M_{200}$ of their clusters through NFW profile fits to the two-dimensional tangential ellipticity signal.