Satellites of Milky Way- and M31-like galaxies with TNG50: quenched fractions, gas content, and star formation histories

Christoph Engler, Annalisa Pillepich, Gandhali D. Joshi +3

We analyse the quenched fractions, gas content, and star formation histories of ~1200 satellite galaxies with $M_{\ast }\ge 5\times 10^6{\mathrm{M}}_{\odot }$ around 198 Milky Way- (MW) and…