Speaker
Description
We analyze the chemical evolution of alpha elements and iron for sumulated dwarf galaxies in Milky-Way-like plane-of-satellite systems for the TNG50 large-scale cosmological simulation. We first analyze the formation of the 11 most lumious satelites that form the plane of satellites around the MIlky Way. Having identified simulated systems that match the properties of the Milky-Way satellites, we analyze in detail their formation and alpha-element nucleosynthesis. We show that the direct nucleosynthesis from the simulations is sometimes a poor fit to the observations. However, simple corrections for the contribution of iron from double-degenerate white dwarf mergers and a diminished efficiency of mixing of ejecta from core collapse supernovae and Type IA supernovae can account for the apparent discrepancies.
| Category | Theory |
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