Simulations of galaxy cluster collisions with a dark plasma componentChristian Spethmann, Hardi Veermäe, Tiit Sepp, Matti Heikinheimo, Boris Deshev, Andi Hektor and Martti RaidalA&A, 608 (2017) A125DOI: https://doi.org/10.1051/0004-6361/201731299