Frontier Fields: Subaru Weak-Lensing Analysis of the Merging Galaxy Cluster A2744

Understand

We present a weak-lensing analysis of the merging {\em Frontier Fields} (FF) cluster Abell~2744 using new Subaru/Suprime-Cam imaging.

• The wide-field lensing mass distribution reveals this cluster is comprised of four distinct substructures.
• Simultaneously modeling the two-dimensional reduced shear field using a combination of a Navarro--Frenk--White (NFW) model for the main core and truncated NFW models for the subhalos, we determine their masses and locations.
• The total mass of the system is constrained as $M_\mathrm{200c} = (2.06\pm0.42)\times10^{15}\,M_\odot$.