Formation and incidence of shell galaxies in the Illustris simulation
Formation and incidence of shell galaxies in the Illustris simulation
Shells are low surface brightness tidal debris that appear as interleaved caustics with large opening angles, often situated on both sides of the galaxy center. In this paper, we study the incidence and formation processes of shell galaxies in the cosmological gravity+hydrodynamics Illustris simulation. We identify shells at redshift z=0 …