Giant cluster arcs as a constraint on the scattering cross-section of dark matter
Giant cluster arcs as a constraint on the scattering cross-section of dark matter
We carry out ray tracing through five high-resolution simulations of a galaxy cluster, to study how its ability to produce giant gravitationally lensed arcs is influenced by the collision cross-section of its dark matter. In three cases typical dark matter particles in the cluster core undergo between 1 and 100 …