Dark Matter, Plasma, Astronomy, Physics, Universe.
cluster collisions with a dark plasma component, Christian Spethmann, Hardi Veermäe, Tiit Sepp, Matti Heikinheimo, Boris Deshev, Andi Hektor, and Martti Raidal, 2017. Dark matter self-interactions via collisionless shocks in cluster mergers, Matti Heikinheimoa, Martti Raidala, Christian Spethmann,