<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Stars and star formation in the Milky Way system"^^ . "Dwarf galaxies in the Milky Way (MW) system provide us with important information of the star formation in the early Universe. In particular, extremely metal-poor stars in them are likely to form in the environment that is directly influenced by the first stars. In this thesis, I utilise the semi-analytic code a-sloth to study the properties of these dwarf galaxies. A new star formation model that allows tracking of individual stars is implemented. The star formation efficiency is important in determining the stellar mass of ultra-faint galaxies at z = 0. To better quantify the goodness-of-fit of the physical models, I develop a new analysis method, which utilises the unsupervised clustering. With this method, the results suggest that the fiducial model cannot reproduce the mean metallicity of the dwarf galaxies. A temporary improvement of the model is implemented and the goodness-of-fit improves by a factor of 2, compared to the fiducial model. I further analyse the location of EMP stars of MW/M31-like systems in the hydrodynamical simulation TNG50. The analysis is based on the spatial and kinematic information of stars. I find that EMP stars reside mostly in the Stellar halo in the galaxy, regardless of the definition of EMP stars. The model and analysis methods introduced in this thesis provide a new framework for future works to understand dwarf galaxy formation and stars that reside in them."^^ . "2022" . . . . . . . "Li-Hsin"^^ . "Chen"^^ . "Li-Hsin Chen"^^ . . . . . . "Stars and star formation in the Milky Way system (PDF)"^^ . . . "PhD_Thesis_Li-Hsin Chen.pdf"^^ . . . "Stars and star formation in the Milky Way system (Other)"^^ . . . . . . "indexcodes.txt"^^ . . . "Stars and star formation in the Milky Way system (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Stars and star formation in the Milky Way system (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Stars and star formation in the Milky Way system (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Stars and star formation in the Milky Way system (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #32367 \n\nStars and star formation in the Milky Way system\n\n" . "text/html" . . . "520 Astronomie"@de . "520 Astronomy and allied sciences"@en . .