Weak Lensing Analysis of Cluster Merger Abell 1758

A1758 is an ongoing merger between two galaxy clusters and the weak lensing results show the total gravitational potential of the system to be offset from the X-ray gas distribution for just one of the clusters. This result is different than previously published mergers (Bullet cluster and MACS J0025.4-1222) because they show an offset between the total mass of the system from the X-ray gas for both clusters. The new geometry of A1758 provides a way to test MOND gravity models such as Tensor-Vector-Scalar.