shows the evolution of satellite galaxies over 500 million years in gas and stars.
The movie below shows the effect of ram pressure stripping of a satellite on a close passage with the central galaxy.
Simons et al. (2020) "Figuring Out Gas & Galaxies in Enzo (FOGGIE). IV. The Stochasticity of Ram Pressure Stripping in Galactic Halos " ApJ, 905, 167