F. Fragkoudi, P. Di Matteo, M. Haywood, A. Gómez, S. Khoperskov, D. Katz, M. Schultheis, F. Combes, B. Semelin
Abstract:AbstractWe explore morphological, kinematic and chemical trends of boxy/peanut (b/p) bulges of Milky Way (MW)-type galaxies, to better understand the formation history of the MW’s bulge. We show, using N-body simulations with both a kinematically cold and a kinematically hot disc, that colder populations develop a more prominent bar and X-shaped peanut as compared to their hotter counterpart. Colder discs also exhibit lower line-of-sight velocities (when viewed edge-on) at the edges of the b/p compared to hot …
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