High and low Sérsic index bulges in Milky Way- and M31-like galaxies: origin and connection to the bar with TNG50
We study bulge formation in MW/M31-like galaxies in a Λ-cold dark matter scenario, focusing on the origin of high- and low-Sersic index bulges. For this purpose, we use TNG50, a simulation of the IllustrisTNG project that combines a resolution of ~8 × 10 4 M ⊙ in stellar particles with a cosmological volume 52 cMpc in extent. We parametrize bulge
Gargiulo, Ignacio D. et al.
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2022