Ben Moore

TL;DR: In this article, the substructure clumps are on orbits that take a large fraction of them through the stellar disk, leading to significant resonant and impulsive heating, and the model predicts that the virialized extent of the Milky Way's halo should contain about 500 satellites with circular velocities larger than the Draco and Ursa Minor systems, i.e., bound masses 108 M☉ and tidally limited sizes 1 kpc.

TL;DR: In this paper, the substructure clumps are on orbits that take a large fraction of them through the stellar disk leading to significant resonant and impulsive heating, and the model predicts that the virialised extent of the Milky Way's halo should contain about 500 satellites with circular velocities larger than Draco and Ursa-Minor i.e. bound masses > 10^8Mo and tidally limited sizes > kpc.

TL;DR: In this article, the authors proposed that multiple high-speed encounters between galaxies (galaxy harassment) drive the morphological evolution in clusters, and showed that these encounters are very different from mergers; they transform small disk galaxies into dwarf elliptical or dwarf spheroidal galaxies.

TL;DR: In this article, the authors show that a universe dominated by cold dark matter fails to reproduce the rotation curves of dark matter dominated galaxies, one of the key problems that it was designed to resolve.

TL;DR: Galaxy harassment as discussed by the authors drives the morphological transformation of galaxies in clusters, provides fuel for quasars in subluminous hosts and leaves detectable debris arcs, and simulated images of harassed galaxies are strikingly similar to the distorted spirals in clusters at $z \sim 0.4$ observed by the Hubble Space Telescope.