title: N-body simulations of galaxies and groups of galaxies with the Marseille GRAPE systems.
abstract: I review the Marseille GRAPE systems and the N-body simulations done with them. First I briefly describe the available hardware and software, their possibilities and their limitations. I then describe work done on interacting galaxies and groups of galaxies. This includes simulations of the formation of ring galaxies, simulations of bar destruction by a massive compact satellite, of merging in compact groups and of the formation of brightest members in clusters of galaxies.
authors.affiliation: Observatoire de Marseille, France. lia@paxi.cnrs-mrs.fr
authors.forename: E
authors.initials: E
authors.lastname: Athanassoula