Searching for signatures of self-interacting dark matter in halos from full physics simulations: From 3D structure to projected observables
The study investigated how self-interacting dark matter (SIDM) affects galaxy groups and clusters using full physics simulations, comparing different interaction models to standard Cold Dark Matter (CDM). Results show that baryonic effects and 2D projections significantly reduce SIDM's impact on mass profiles. However, weak lensing observations remain a promising tool for detecting SIDM signatures in massive cluster cores.