Abstract
The diffused light between galaxies, as first discovered by Zwicky (1951), has been an interesting issue related with the evolution of galaxies. N-body simulations of mergers of galaxies with dark matter have been employed to address this topic. By N-body simulations, we investigate the production of intergalactic populations through head-on mergers. Our results show that single head-on mergers cannot explain the observations, and the main conclusions are: (1)head-on merging events make a considerable fraction of dark metter become unbound; (2)some luminous intergalactic populations are in fact trapped in dark halo and gravitationally bounded; (3)multiple and minor mergers shall have contributions on intergalactic populations. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial- ShareAlike Licence.